Monitoring Apache Tomcat and the Apache Web Server. Rainer Jung
|
|
|
- Blaise Ellis
- 8 years ago
- Views:
Transcription
1 Monitoring Apache Tomcat and the Apache Web Server Rainer Jung 2013 kippdata informationstechnologie GmbH 1 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
2 Agenda Motivation Java Management Extensions (JMX) Some Remarks Monitoring Apache Tomcat Monitoring the Apache Web Server Discussion 2013 kippdata informationstechnologie GmbH 2 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
3 Motivation Java Management Extensions (JMX) Some Remarks Monitoring Apache Tomcat Monitoring the Apache Web Server Discussion 2013 kippdata informationstechnologie GmbH 3 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
4 Motivation Monitoring Monitoring Goals Failure Detection, Red/Green Status, Alarms, Notifications Automatic detection and notification of failures No false positives Mostly only understood and implemented for platform basics and end-to-end File system free percentage, CPU % busy Application login, success of test transactions Only notify about root cause Hard to fulfill 2013 kippdata informationstechnologie GmbH 4 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
5 Motivation Monitoring Further Monitoring Goals Continuous collecting of runtime metrics Polling Storing Accumulating and visualizing Uses: Problem root cause analysis Which metrics are exactly needed not known in advance Capacity management Do we need to add resources Do we need to adjust software sizing/configuration 2013 kippdata informationstechnologie GmbH 5 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
6 Motivation Categories of Monitoring Data What kind of metrics are we looking for? Application load and response times Utilization of software components Pools, caches Resource usage Java memory and GC behavior This talk is about metrics readily available in httpd and Tomcat, not about End to end monitoring, Application specific monitoring, log file monitoring 2013 kippdata informationstechnologie GmbH 6 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
7 Motivation Non-Monitoring Data What we can't get from monitoring Is the application waiting on another system (back end, database, )? Is the application waiting to acquire locks (lock contention, software design problem)? Are we looping in code, or example due to an unexpected error condition? For this we would need to analyze thread dumps That would be another talk 2013 kippdata informationstechnologie GmbH 7 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
8 Motivation Java Management Extensions (JMX) Some Remarks Monitoring Apache Tomcat Monitoring the Apache Web Server Discussion 2013 kippdata informationstechnologie GmbH 8 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
9 Java Management Extensions Java Management Extensions (JMX) A standard in the Java world Can be used to expose internal application states Sizes (pools etc.), counters (requests, errors, etc.) Configuration settings Structured and nested data supported Operations supported Examples: reset, resize, change log level,... Notifications (Emitter, Listener) Events, for example threshold alarms 2013 kippdata informationstechnologie GmbH 9 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
10 Java Management Extensions MBeans MBeans Information is grouped in MBeans (Management Beans) MBeans have a structured name (the ObjectName), a list of attributes (the actual data) and sometimes operations Attributes are often scalar, can also be nested structures Simple example: Name: Catalina:type=ThreadPool,name="http-bio-8080" ^^Domain^^ currentthreadcount: 10 currentthreadsbusy: 1 maxthreads: 200 connectioncount: kippdata informationstechnologie GmbH 10 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
11 Java Management Extensions MBeans and MBeanServer MBeans and the MBeanServer(s) MBeans are registered via their name. The registry is called an MBeanServer MBean attributes can be retrieved via (remote) access to the MBeanServer using their name There's a common base set of MBeans available in each JVM (not only Tomcat), named Platform MBeans Tomcat (and most other containers) provides lots of additional more specific MBeans It is easy to provide application specific MBeans. Developers should embrace this! 2013 kippdata informationstechnologie GmbH 11 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
12 Java Management Extensions Remote JMX Access Remote JMX Access to an MBeanServer Needs a JMX client, typically a Java client Some system properties must be set -Dcom.sun.management.jmxremote \ -Dcom.sun.management.jmxremote.port= Caution: for production systems always configure access control Trouble with firewalls (RMI which opens additional ports) Solution for Tomcat: JmxRemoteLifecycleListener See: kippdata informationstechnologie GmbH 12 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
13 Java Management Extensions JMX Clients JMX-Clients (few examples) JVisualVM Comes with the Oracle JDK Not an enterprise tool: Useful for ad hoc inspecting MBeans Only GUI mode No way to continually persist data jmxterm (interactive JMX shell) Most (all) monitoring solutions offer JMX integration 2013 kippdata informationstechnologie GmbH 13 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
14 Java Management Extensions VisualVM Demo JVisualVM Demo JVisualVM connected to Sleep.java JVisualVM connected to JVisualVM JVisualVM connected to Tomcat 2013 kippdata informationstechnologie GmbH 14 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
15 Java Management Extensions Client Problems and Alternatives Problems with JMX-Clients Creating a new JVM process for each monitoring poll is a killer on the polling monitoring server So use a persistent JMX client Alternative: use another protocol Run an agent in the JVM, that can be reached by a non- Java technology/protocol. Example: HTTP Or run a proxy written in Java that talks JMX to the target but can be queried for example using HTTP 2013 kippdata informationstechnologie GmbH 15 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
16 Motivation Java Management Extensions (JMX) Some Remarks Monitoring Apache Tomcat Monitoring the Apache Web Server Discussion 2013 kippdata informationstechnologie GmbH 16 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
17 Some Remarks Measurements must be taken automatically and be persisted Interactive observations (JVisualVM) are not sufficient No history, each user polls separately Can be useful to get an idea what to track Typical poll interval 1 minute In addition to polling and persisting the data We need to think about thresholds For which measurements are they adequate, which values to choose We need to automatically visualize the data Access to raw data should be available if needed 2013 kippdata informationstechnologie GmbH 17 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
18 Some Remarks Hurdles Scalar attributes versus MXBeans (OpenMBeans) More and more MBeans provide structured and nested data (MXBeans) Tools could automatically inspect the structure of the data Some tools still do not support that Check your tool support before implementing your own MBeans as MXBeans 2013 kippdata informationstechnologie GmbH 18 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
19 Some Remarks More Hurdles MBeans typically reflect source code structure To many MBeans, to hard to understand Not always optimal granularity Many MBeans of the same type Might lead to unacceptable polling load if tool does not support appropriate bulk requests Necessity to use simple mathematical operators Not always the right level of information in the MBeans Example: maximum and current pool size, but not current percentage Need to deduce deltas or rates from counters, quotients of metrics, quotients of deltas 2013 kippdata informationstechnologie GmbH 19 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
20 Motivation Java Management Extensions (JMX) Some Remarks Monitoring Apache Tomcat Monitoring the Apache Web Server Discussion 2013 kippdata informationstechnologie GmbH 20 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
21 Monitoring Apache Tomcat Getting the Data Let's use HTTP to retrieve JMX data from Tomcat JMXProxy is part of the Tomcat Manager webapp Role manager-jmx needed Demo Jolokia ( For Tomcat: deployable webapp REST style interface, data delivered in JSON, bulk request support Clients Jmx4Perl, j4psh, Javascript client API Or write your own servlet (see code of JMXProxy) 2013 kippdata informationstechnologie GmbH 21 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
22 Monitoring Apache Tomcat Plattform MBeans Starting with platform MBeans These are available in every JVM, not just Tomcat 2013 kippdata informationstechnologie GmbH 22 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
23 Monitoring Apache Tomcat Plattform MBeans OperatingSystem Name: java.lang:type=operatingsystem AvailableProcessors: 4 ProcessCpuTime: ^^^nano seconds^^^ SystemLoadAverage: TotalPhysicalMemorySize: TotalSwapSpaceSize: FreePhysicalMemorySize: FreeSwapSpaceSize: CommittedVirtualMemorySize: OpenFileDescriptorCount: 31 MaxFileDescriptorCount: kippdata informationstechnologie GmbH 23 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
24 Monitoring Apache Tomcat Plattform MBeans OperatingSystem ProcessCpuTime: Rate gives CPU seconds per second. Approximation of needed CPU concurrency (CPU cores used). Threshold applies SystemLoadAverage: usual 1 minute average. Threshold. CommittedVirtualMemorySize: includes native memory, for example used by JNI. Threshold applies, for example in case of native memory leaks Open/MaxFileDescriptorCount: useful to check FD limits. Quotient gives percentage used of allowed FDs 2013 kippdata informationstechnologie GmbH 24 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
25 Monitoring Apache Tomcat Plattform MBeans Runtime Name: java.lang:type=runtime Uptime: Threading Name: java.lang:type=threading TotalStartedThreadCount: 24 PeakThreadCount: 23 ThreadCount: 22 DaemonThreadCount: 21 TotalStartedThreadCount: Rate gives threads started per second ThreadCount or DaemonThreadCount: threshold applies 2013 kippdata informationstechnologie GmbH 25 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
26 Monitoring Apache Tomcat Plattform MBeans ClassLoading Name: java.lang:type=classloading LoadedClassCount: 3058 TotalLoadedClassCount: 3058 UnloadedClassCount: 0 Compilation Name: java.lang:type=compilation TotalCompilationTime: 5270 Both typically not very interesting Possibly useful when running other languages in the JVM Somewhat useful when comparing releases 2013 kippdata informationstechnologie GmbH 26 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
27 Monitoring Apache Tomcat Plattform MBeans Memory Name: java.lang:type=memory ObjectPendingFinalizationCount: 0 HeapMemoryUsage: committed= , init= , max= , used= NonHeapMemoryUsage: committed= , init= , max= , used= Not interesting, because several memory regions are thrown together But see next MBean type kippdata informationstechnologie GmbH 27 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
28 Monitoring Apache Tomcat Plattform MBeans MemoryPool Data available for: Eden, Survivor, Tenured, Perm and Code Cache Example for Eden Name: java.lang:type=memorypool,name=ps Eden Space Usage: committed= , init= , max= , used= PeakUsage: committed= , init= , max= , used= CollectionUsage: committed= , init= , max= , used=0 CollectionUsage: better use next MBean 2013 kippdata informationstechnologie GmbH 28 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
29 Monitoring Apache Tomcat Plattform MBeans GarbageCollector Name: java.lang:type=garbagecollector,name=ps Scavenge CollectionCount: 4 CollectionTime: 127 LastGcInfo: GcThreadCount=4, id=4, starttime=10275, endtime=10302, duration=27, memoryusagebeforegc={...}, memoryusageaftergc={} Data Available for eden GC (example: PS Scavenge ) and for tenured GC (example: PS MarkSweep ) CollectionTime: cumulated duration in milliseconds starttime, endtime: milliseconds since JVM start 2013 kippdata informationstechnologie GmbH 29 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
30 Monitoring Apache Tomcat Plattform MBeans GarbageCollector Example tenured cleaning in PS MarkSweep memoryusagebeforegc: [PS Old Gen]={committed= , init= , max= , used= } memoryusageaftergc: [PS Old Gen]={committed= , init= , max= , used= } 2013 kippdata informationstechnologie GmbH 30 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
31 Monitoring Apache Tomcat Global Tomcat MBeans Now Tomcat MBeans: First the global Tomcat MBeans ThreadPool (for each Connector in server.xml) Name: Catalina:type=ThreadPool,name="http-bio-8080" currentthreadcount: 10 currentthreadsbusy: 1 maxthreads: 200 connectioncount: 2 currentthreadsbusy/maxthreads: thread pool usage What is busy? Depending on connector: handles a connection (BIO) or handles a request (NIO and APR) connectioncount: off by 1, useful when using NIO or APR 2013 kippdata informationstechnologie GmbH 31 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
32 Monitoring Apache Tomcat Global Tomcat MBeans GlobalRequestProcessor (for each Connector) Name: Catalina:type=GlobalRequestProcessor, name="http-bio-8080" requestcount: 20 errorcount: 1 processingtime: 3766 maxtime: 1902 bytesreceived: 0 bytessent: requestcount: Rate gives throughput (requests per sec) but: what is an error? delta(errorcount)/delta(requestcount): error rate 2013 kippdata informationstechnologie GmbH 32 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
33 Monitoring Apache Tomcat Global Tomcat MBeans GlobalRequestProcessor continued processingtime: cumulated in milliseconds. Rate is average request concurrency in last interval (!) delta(processingtime)/delta(requestcount): average request processing time in the last interval (!) bytesreceived, bytessent: do not contain headers. Rate is approximation for bandwidth (headers missing). delta(bytes)/delta/requestcount) is average body size in the last interval 2013 kippdata informationstechnologie GmbH 33 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
34 Monitoring Apache Tomcat Global Tomcat MBeans RequestProcessor (roughly for each thread) Name: Catalina:type=RequestProcessor, worker="http-bio-8080",name=httprequest6 requestcount: 3 errorcount: 0... remoteaddr: 0:0:0:0:0:0:0:1 currenturi: /sleep.jsp requestprocessingtime: 9432 currenturi: attribute only present if the processor currently works on a request requestprocessingtime: detect long running requests on the fly 2013 kippdata informationstechnologie GmbH 34 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
35 Monitoring Apache Tomcat Global Tomcat MBeans DataSource (Tomcat provided database conn. pools) Name: Catalina:type=DataSource, class=javax.sql.datasource, name="jdbc/myappdb" numidle: 3 numactive: 1 maxactive: 7 maxactive: configuration item 100*numActive/maxActive: current pool use in percent Can be per webapp if defined in the webapp, ObjectName then slightly different 2013 kippdata informationstechnologie GmbH 35 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
36 Monitoring Apache Tomcat Webapp Tomcat MBeans Finally the per Webapp Tomcat MBeans Manager (Session Management) Name: Catalina:type=Manager,context=/, host=localhost sessioncounter: 1234 activesessions: 19 expiredsessions: 1214 sessioncounter, expiredsessions: sessions created resp. expired since Tomcat start. Rate is session per second, for example login rate and logout/timeout rate. Use threshold. activesessions: current number of sessions. Use threshold 2013 kippdata informationstechnologie GmbH 36 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
37 Monitoring Apache Tomcat Webapp Tomcat MBeans Manager continued Name: Catalina:type=Manager,context=/, host=localhost maxactive: 114 rejectedsessions: 0 duplicates: 0 maxactive: can be reset without restart rejectedsessions: how often was a configured maxactivesessions limit reached duplicates: how often was a session ID non-unique and had to be replaced (during session generation). Typically always kippdata informationstechnologie GmbH 37 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
38 Monitoring Apache Tomcat Webapp Tomcat MBeans Manager continued Name: Catalina:type=Manager,context=/, host=localhost sessionaveragealivetime: 458 sessionmaxalivetime: 1861 processingtime: 3 alive times: in seconds measured from session creation to expiration (be it logout or session idle timeout) processingtime: cumulated elapsed milliseconds needed for session expiration handling. Usually not interesting, but could be when using a custom HttpSessionListener 2013 kippdata informationstechnologie GmbH 38 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
39 Monitoring Apache Tomcat Webapp Tomcat MBeans Manager continued Name: Catalina:type=Manager,context=/, host=localhost sessioncreaterate: 1 sessionexpirerate: 1 Rate: Rates per minute for the last 100 session created/expired 2013 kippdata informationstechnologie GmbH 39 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
40 Monitoring Apache Tomcat Webapp Tomcat MBeans Servlet Name: Catalina:j2eeType=Servlet,name=JMXProxy, WebModule=//localhost/manager, J2EEApplication=none,J2EEServer=none requestcount: 6 errorcount: 1 processingtime: 1360 mintime: 92 maxtime: 789 Times in milliseconds. Earlier remarks apply, see GlobalRequestProcessor 2013 kippdata informationstechnologie GmbH 40 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
41 Monitoring Apache Tomcat Webapp Tomcat MBeans default Servlet (Tomcat provided) Name: Catalina:j2eeType=Servlet,name=default, WebModule=//localhost/, J2EEApplication=none,J2EEServer=none requestcount: 113 errorcount: 0 processingtime: 243 mintime: 0 maxtime: 6 Handles serving of static content 2013 kippdata informationstechnologie GmbH 41 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
42 Monitoring Apache Tomcat Webapp Tomcat MBeans JSP Servlet (Tomcat provided) Name: Catalina:j2eeType=Servlet,name=jsp, WebModule=//localhost/, J2EEApplication=none,J2EEServer=none requestcount: 5 errorcount: 0 processingtime: 3312 mintime: 494 maxtime: 912 Tracks JSP execution 2013 kippdata informationstechnologie GmbH 42 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
43 Monitoring Apache Tomcat Webapp Tomcat MBeans JSPMonitor Name: Catalina:type=JspMonitor,name=jsp, WebModule=//localhost/, J2EEApplication=none,J2EEServer=none jspcount: 31 jspunloadcount: 0 jspreloadcount: 31 jspqueuelength: -1 Tracks JSP loading, reloading and unloading For unloading see maxloadedjsps on kippdata informationstechnologie GmbH 43 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
44 Monitoring Apache Tomcat Webapp Tomcat MBeans WebModule (Webapp) Name: Catalina:j2eeType=WebModule, name=//localhost/manager, J2EEApplication=none,J2EEServer=none processingtime: 1360 processingtime: as usual cumulated millisecond elapsed time for all handled requests (in this webapp). Sum over all servlets. Unfortunately no requestcount available on the Webapp level (only per servlet or per connector) Fixed a few minutes ago for the next TC 7 release 2013 kippdata informationstechnologie GmbH 44 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
45 Motivation Java Management Extensions (JMX) Some Remarks Monitoring Apache Tomcat Monitoring the Apache Web Server Discussion 2013 kippdata informationstechnologie GmbH 45 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
46 Monitoring the Apache Web Server Getting the Data Let's use HTTP to retrieve data from httpd The module mod_status provides a web page with monitoring data LoadModule status_module modules/mod_status.so <Location /server-status> SetHandler server-status!!! YOUR ACCESS CONTROL GOES HERE!!! </Location> You can choose any URI you like ( /server-status ), but the SetHandler must be configured as-is Alternative not shown here: Connect to scoreboard shared memory and read data from there 2013 kippdata informationstechnologie GmbH 46 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
47 Monitoring the Apache Web Server Getting the Data Example: HTML view Most complete data Data interesting Needs to be parsed 2013 kippdata informationstechnologie GmbH 47 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
48 Monitoring the Apache Web Server Getting the Data Example auto : /server-status?auto Text view Incomplete data Data still interesting Trivial to parse 2013 kippdata informationstechnologie GmbH 48 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
49 Monitoring the Apache Web Server Getting the Data Per slot data ExtendedStatus On Recently on by default if mod_status is loaded HTML table, needs to be parsed Not especially interesting for monitoring 2013 kippdata informationstechnologie GmbH 49 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
50 Monitoring the Apache Web Server Getting the Data Per slot data notable variant /server-status?notable Easier to parse Still not especially interesting for monitoring 2013 kippdata informationstechnologie GmbH 50 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
51 Monitoring the Apache Web Server Useful Metrics Which metrics are useful? Restart Time: Monday, 25-Feb :39:37 UTC Server uptime: 1 day 23 hours 53 minutes 46 seconds Restart Time: Graceful does not count as a restart Server load: System load numbers that you would also get from the OS uptime command Added in 2.4.4, use threshold Total accesses: Total Traffic: GB Use rate calculation for requests/second and bandwidth Use quotient of delta for average size in last interval 2013 kippdata informationstechnologie GmbH 51 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
52 Monitoring the Apache Web Server Useful Metrics Which metrics are useful? 29 requests currently being processed, 227 idle workers Current worker thread used and available concurrency Worker thread count important sizing parameter Use threshold IMHO not as useful CPU Usage: u s cu0 cs0-2.55% CPU load 134 requests/sec MB/second kb/request CPU not reliable (child CPU handling) Averages since restart 2013 kippdata informationstechnologie GmbH 52 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
53 Monitoring the Apache Web Server Useful Metrics What are the busy worker threads doing? W RR W... R WRWR R_WR R RRW R WWR RW Each character represents the status of a worker thread Scoreboard Key: "_" Waiting for Connection, "S" Starting up, "R" Reading Request, "W" Sending Reply, "K" Keepalive (read), "D" DNS Lookup, "C" Closing connection, "L" Logging, "G" Gracefully finishing, "I" Idle cleanup of worker, "." Open slot with no current process Count most important chars (W,R,K,_,.), sum up rest Using the event MPM most K will not be shown, because they no longer block a worker thread, so kippdata informationstechnologie GmbH 53 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
54 Monitoring the Apache Web Server Useful Metrics What about connections not blocking a worker thread (Event MPM)? Per process and sums The following typically sum up: busy + writing + keep-alive + closing = total Only busy needs a worker thread Monitor Threads and Async data in Sum row All other connections states use a separate poller Note how few are busy compared with the other states 2013 kippdata informationstechnologie GmbH 54 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
55 Motivation Java Management Extensions (JMX) Some Remarks Monitoring Apache Tomcat Monitoring the Apache Web Server Discussion 2013 kippdata informationstechnologie GmbH 55 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
56 Discussion Any questions? 2013 kippdata informationstechnologie GmbH 56 Monitoring Apache Tomcat and Web Server Rainer Jung ApacheCon NA 2013
CA Nimsoft Monitor. Probe Guide for Apache HTTP Server Monitoring. apache v1.5 series
CA Nimsoft Monitor Probe Guide for Apache HTTP Server Monitoring apache v1.5 series Legal Notices This online help system (the "System") is for your informational purposes only and is subject to change
Scaling Progress OpenEdge Appservers. Syed Irfan Pasha Principal QA Engineer Progress Software
Scaling Progress OpenEdge Appservers Syed Irfan Pasha Principal QA Engineer Progress Software Michael Jackson Dies and Twitter Fries Twitter s Fail Whale 3 Twitter s Scalability Problem Takeaways from
Tomcat 5 New Features
Tomcat 5 New Features ApacheCon US 2003 Session MO10 11/17/2003 16:00-17:00 Craig R. McClanahan Senior Staff Engineer Sun Microsystems, Inc. Slides: http://www.apache.org/~craigmcc/ Agenda Introduction
Tomcat Tuning. Mark Thomas April 2009
Tomcat Tuning Mark Thomas April 2009 Who am I? Apache Tomcat committer Resolved 1,500+ Tomcat bugs Apache Tomcat PMC member Member of the Apache Software Foundation Member of the ASF security committee
Apache Tomcat. Load-balancing and Clustering. Mark Thomas, 20 November 2014. 2014 Pivotal Software, Inc. All rights reserved.
2 Apache Tomcat Load-balancing and Clustering Mark Thomas, 20 November 2014 Introduction Apache Tomcat committer since December 2003 markt@apache.org Tomcat 8 release manager Member of the Servlet, WebSocket
Monitoring Tomcat with JMX
Monitoring Tomcat with JMX Christopher Schultz Chief Technology Offcer Total Child Health, Inc. * Slides available on the Linux Foundation / ApacheCon2014 web site and at http://people.apache.org/~schultz/apachecon
Apache Tomcat Tuning for Production
Apache Tomcat Tuning for Production Filip Hanik & Mark Thomas SpringSource September 2008 Copyright 2008 SpringSource. Copying, publishing or distributing without express written permission is prohibited.
Monitoring HP OO 10. Overview. Available Tools. HP OO Community Guides
HP OO Community Guides Monitoring HP OO 10 This document describes the specifications of components we want to monitor, and the means to monitor them, in order to achieve effective monitoring of HP Operations
How To Monitor A Server With Zabbix
& JavaEE Platform Monitoring A Good Match? Company Facts Jesta Digital is a leading global provider of next generation entertainment content and services for the digital consumer. subsidiary of Jesta Group,
Oracle WebLogic Server 11g Administration
Oracle WebLogic Server 11g Administration This course is designed to provide instruction and hands-on practice in installing and configuring Oracle WebLogic Server 11g. These tasks include starting and
CHAPTER 1 - JAVA EE OVERVIEW FOR ADMINISTRATORS
CHAPTER 1 - JAVA EE OVERVIEW FOR ADMINISTRATORS Java EE Components Java EE Vendor Specifications Containers Java EE Blueprint Services JDBC Data Sources Java Naming and Directory Interface Java Message
TDA - Thread Dump Analyzer
TDA - Thread Dump Analyzer TDA - Thread Dump Analyzer Published September, 2008 Copyright 2006-2008 Ingo Rockel Table of Contents 1.... 1 1.1. Request Thread Dumps... 2 1.2. Thread
Monitoring Techniques for Cisco Network Registrar
White Paper Monitoring Techniques for Cisco Network Registrar White Paper 2011 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information. Page 1 of 14 Introduction...
Agenda. Tomcat Versions Troubleshooting management Tomcat Connectors HTTP Protocal and Performance Log Tuning JVM Tuning Load balancing Tomcat
Agenda Tomcat Versions Troubleshooting management Tomcat Connectors HTTP Protocal and Performance Log Tuning JVM Tuning Load balancing Tomcat Tomcat Performance Tuning Tomcat Versions Application/System
MID-TIER DEPLOYMENT KB
MID-TIER DEPLOYMENT KB Author: BMC Software, Inc. Date: 23 Dec 2011 PAGE 1 OF 16 23/12/2011 Table of Contents 1. Overview 3 2. Sizing guidelines 3 3. Virtual Environment Notes 4 4. Physical Environment
How To Improve Performance On An Asa 9.4 Web Application Server (For Advanced Users)
Paper SAS315-2014 SAS 9.4 Web Application Performance: Monitoring, Tuning, Scaling, and Troubleshooting Rob Sioss, SAS Institute Inc., Cary, NC ABSTRACT SAS 9.4 introduces several new software products
Determine the process of extracting monitoring information in Sun ONE Application Server
Table of Contents AboutMonitoring1 Sun ONE Application Server 7 Statistics 2 What Can Be Monitored? 2 Extracting Monitored Information. 3 SNMPMonitoring..3 Quality of Service 4 Setting QoS Parameters..
Intro to Load-Balancing Tomcat with httpd and mod_jk
Intro to Load-Balancing Tomcat with httpd and mod_jk Christopher Schultz Chief Technology Officer Total Child Health, Inc. * Slides available on the Linux Foundation / ApacheCon2015 web site and at http://people.apache.org/~schultz/apachecon
Apache Tomcat & Reverse Proxies
Apache Tomcat & Reverse Proxies Mark Thomas, Staff Engineer 2012 SpringSource, by VMware. All rights reserved Agenda Introductions What is a reverse proxy? Protocol selection httpd module selection Connector
EWeb: Highly Scalable Client Transparent Fault Tolerant System for Cloud based Web Applications
ECE6102 Dependable Distribute Systems, Fall2010 EWeb: Highly Scalable Client Transparent Fault Tolerant System for Cloud based Web Applications Deepal Jayasinghe, Hyojun Kim, Mohammad M. Hossain, Ali Payani
Moving beyond hardware
Moving beyond hardware These slides represent the work and opinions of the author and do not constitute official positions of any organization sponsoring the author s work This material has not been peer
Apache and Tomcat Clustering Configuration Table of Contents
Apache and Tomcat Clustering Configuration Table of Contents INTRODUCTION REVISION HISTORY DOWNLOAD AND INSTALL JDK DOWNLOAD AND INSTALL APACHE WEB SERVER (HTTPD) DOWNLOAD AND INSTALL TOMCAT SERVER APACHE
THE BUSY DEVELOPER'S GUIDE TO JVM TROUBLESHOOTING
THE BUSY DEVELOPER'S GUIDE TO JVM TROUBLESHOOTING November 5, 2010 Rohit Kelapure HTTP://WWW.LINKEDIN.COM/IN/ROHITKELAPURE HTTP://TWITTER.COM/RKELA Agenda 2 Application Server component overview Support
LOAD BALANCING TECHNIQUES FOR RELEASE 11i AND RELEASE 12 E-BUSINESS ENVIRONMENTS
LOAD BALANCING TECHNIQUES FOR RELEASE 11i AND RELEASE 12 E-BUSINESS ENVIRONMENTS Venkat Perumal IT Convergence Introduction Any application server based on a certain CPU, memory and other configurations
Apache Jakarta Tomcat
Apache Jakarta Tomcat 20041058 Suh, Junho Road Map 1 Tomcat Overview What we need to make more dynamic web documents? Server that supports JSP, ASP, database etc We concentrates on Something that support
CA Nimsoft Monitor Snap
CA Nimsoft Monitor Snap Configuration Guide for IIS Server Monitoring iis v1.5 series Legal Notices This online help system (the "System") is for your informational purposes only and is subject to change
Configuring Nex-Gen Web Load Balancer
Configuring Nex-Gen Web Load Balancer Table of Contents Load Balancing Scenarios & Concepts Creating Load Balancer Node using Administration Service Creating Load Balancer Node using NodeCreator Connecting
Java Monitoring. Stuff You Can Get For Free (And Stuff You Can t) Paul Jasek Sales Engineer
Java Monitoring Stuff You Can Get For Free (And Stuff You Can t) Paul Jasek Sales Engineer A Bit About Me Current: Past: Pre-Sales Engineer (1997 present) WaveMaker Wily Persistence GemStone Application
IT Best Practices Audit TCS offers a wide range of IT Best Practices Audit content covering 15 subjects and over 2200 topics, including:
IT Best Practices Audit TCS offers a wide range of IT Best Practices Audit content covering 15 subjects and over 2200 topics, including: 1. IT Cost Containment 84 topics 2. Cloud Computing Readiness 225
StreamServe Persuasion SP5 StreamStudio
StreamServe Persuasion SP5 StreamStudio Administrator s Guide Rev B StreamServe Persuasion SP5 StreamStudio Administrator s Guide Rev B OPEN TEXT CORPORATION ALL RIGHTS RESERVED United States and other
B M C S O F T W A R E, I N C. BASIC BEST PRACTICES. Ross Cochran Principal SW Consultant
B M C S O F T W A R E, I N C. PATROL FOR WEBSPHERE APPLICATION SERVER BASIC BEST PRACTICES Ross Cochran Principal SW Consultant PAT R O L F O R W E B S P H E R E A P P L I C AT I O N S E R V E R BEST PRACTICES
CA Nimsoft Monitor. Probe Guide for IIS Server Monitoring. iis v1.5 series
CA Nimsoft Monitor Probe Guide for IIS Server Monitoring iis v1.5 series Legal Notices Copyright 2013, CA. All rights reserved. Warranty The material contained in this document is provided "as is," and
IBM WebSphere Server Administration
IBM WebSphere Server Administration This course teaches the administration and deployment of web applications in the IBM WebSphere Application Server. Duration 24 hours Course Objectives Upon completion
Spectrum Technology Platform Version 8.0.0. Tutorial: Load Balancing Spectrum Spatial Services. Contents:
Spectrum Technology Platform Version 8.0.0 Tutorial: Load Balancing Spectrum Spatial Services UNITED STATES www.pb.com/software Technical Support: www.pbinsight.com/support CANADA www.pb.com/software Technical
Tuning Your GlassFish Performance Tips. Deep Singh Enterprise Java Performance Team Sun Microsystems, Inc.
Tuning Your GlassFish Performance Tips Deep Singh Enterprise Java Performance Team Sun Microsystems, Inc. 1 Presentation Goal Learn tips and techniques on how to improve performance of GlassFish Application
Java Performance Tuning
Summer 08 Java Performance Tuning Michael Finocchiaro This white paper presents the basics of Java Performance Tuning for large Application Servers. h t t p : / / m f i n o c c h i a r o. w o r d p r e
Performance White Paper
Sitecore Experience Platform 8.1 Performance White Paper Rev: March 11, 2016 Sitecore Experience Platform 8.1 Performance White Paper Sitecore Experience Platform 8.1 Table of contents Table of contents...
WebSphere Server Administration Course
WebSphere Server Administration Course Chapter 1. Java EE and WebSphere Overview Goals of Enterprise Applications What is Java? What is Java EE? The Java EE Specifications Role of Application Server What
Performance Optimization For Operational Risk Management Application On Azure Platform
Performance Optimization For Operational Risk Management Application On Azure Platform Ashutosh Sabde, TCS www.cmgindia.org 1 Contents Introduction Functional Requirements Non Functional Requirements Business
Oracle Enterprise Manager
Oracle Enterprise Manager System Monitoring Plug-in Installation Guide for Apache Tomcat Release 12.1.0.1.0 E28545-04 February 2014 This document provides installation instructions and configuration information
DEPLOYMENT GUIDE Version 1.0. Deploying the BIG-IP LTM with Apache Tomcat and Apache HTTP Server
DEPLOYMENT GUIDE Version 1.0 Deploying the BIG-IP LTM with Apache Tomcat and Apache HTTP Server Table of Contents Table of Contents Deploying the BIG-IP LTM with Tomcat application servers and Apache web
SOLUTION BRIEF: SLCM R12.7 PERFORMANCE TEST RESULTS JANUARY, 2012. Load Test Results for Submit and Approval Phases of Request Life Cycle
SOLUTION BRIEF: SLCM R12.7 PERFORMANCE TEST RESULTS JANUARY, 2012 Load Test Results for Submit and Approval Phases of Request Life Cycle Table of Contents Executive Summary 3 Test Environment 4 Server
Apache Tomcat Tips and Tricks from the Pros
Apache Tomcat Tips and Tricks from the Pros The webinar will begin shortly... Select audio mode (telephone or VOIP) Telephone dial-in: France: +33 (0) 426 460 175 Germany: +49 (0) 895 4998 6652 Netherlands:
Web Performance, Inc. Testing Services Sample Performance Analysis
Web Performance, Inc. Testing Services Sample Performance Analysis Overview This document contains two performance analysis reports created for actual web testing clients, and are a good example of the
mod_cluster A new httpd-based load balancer Brian Stansberry JBoss, a division of Red Hat
mod_cluster A new httpd-based load balancer Brian Stansberry JBoss, a division of Red Hat Agenda Who is Brian Stansberry? Principal Software Engineer at Red Hat Technical Lead for JBoss Application Server
Oracle JRockit Mission Control Overview
Oracle JRockit Mission Control Overview An Oracle White Paper June 2008 JROCKIT Oracle JRockit Mission Control Overview Oracle JRockit Mission Control Overview...3 Introduction...3 Non-intrusive profiling
OnCommand Performance Manager 1.1
OnCommand Performance Manager 1.1 Installation and Setup Guide For Red Hat Enterprise Linux NetApp, Inc. 495 East Java Drive Sunnyvale, CA 94089 U.S. Telephone: +1 (408) 822-6000 Fax: +1 (408) 822-4501
1. Spring Batch Admin User Guide
1. Spring Batch Admin User Guide Version : 1.3.0 Authors : Dave Syer Spring Batch Admin provides a webbased user interface that features an admin console for Spring Batch applications and systems. It is
Enterprise Edition Scalability. ecommerce Framework Built to Scale Reading Time: 10 minutes
Enterprise Edition Scalability ecommerce Framework Built to Scale Reading Time: 10 minutes Broadleaf Commerce Scalability About the Broadleaf Commerce Framework Test Methodology Test Results Test 1: High
KillTest. http://www.killtest.cn 半 年 免 费 更 新 服 务
KillTest 质 量 更 高 服 务 更 好 学 习 资 料 http://www.killtest.cn 半 年 免 费 更 新 服 务 Exam : 1Z0-599 Title : Oracle WebLogic Server 12c Essentials Version : Demo 1 / 10 1.You deploy more than one application to the
Operations and Monitoring with Spring
Operations and Monitoring with Spring Eberhard Wolff Regional Director and Principal Consultant SpringSource Copyright 2009 SpringSource. Copying, publishing or distributing without express written permission
Advanced Liferay Architecture: Clustering and High Availability
Advanced Liferay Architecture: Clustering and High Availability Revision 1.1, Oct 2010 *Note: All of the configuration examples in 3 rd -party software (i.e. Apache, Sun Java) in this document are examples
SCUOLA SUPERIORE SANT ANNA 2007/2008
Master degree report Implementation of System and Network Monitoring Solution Netx2.0 By Kanchanna RAMASAMY BALRAJ In fulfillment of INTERNATIONAL MASTER ON INFORMATION TECHNOLOGY SCUOLA SUPERIORE SANT
Course Description. Course Audience. Course Outline. Course Page - Page 1 of 5
Course Page - Page 1 of 5 WebSphere Application Server 7.0 Administration on Windows BSP-1700 Length: 5 days Price: $ 2,895.00 Course Description This course teaches the basics of the administration and
WEBLOGIC ADMINISTRATION
WEBLOGIC ADMINISTRATION Session 1: Introduction Oracle Weblogic Server Components Java SDK and Java Enterprise Edition Application Servers & Web Servers Documentation Session 2: Installation System Configuration
Performance Analysis of Web based Applications on Single and Multi Core Servers
Performance Analysis of Web based Applications on Single and Multi Core Servers Gitika Khare, Diptikant Pathy, Alpana Rajan, Alok Jain, Anil Rawat Raja Ramanna Centre for Advanced Technology Department
Zenoss Core Extended Monitoring Copyright 2012 Zenoss, Inc., 275 West St. Suite 204, Annapolis, MD 21401, U.S.A. All rights reserved.
Zenoss Core Extended Monitoring Copyright 2012 Zenoss, Inc., 275 West St. Suite 204, Annapolis, MD 21401, U.S.A. All rights reserved. Zenoss and the Zenoss logo are trademarks or registered trademarks
Monitoring Remedy with BMC Solutions
Monitoring Remedy with BMC Solutions Overview How does BMC Software monitor Remedy with our own solutions? The challenge is many fold with a solution like Remedy and this does not only apply to Remedy,
DOSarrest External MULTI-SENSOR ARRAY FOR ANALYSIS OF YOUR CDN'S PERFORMANCE IMMEDIATE DETECTION AND REPORTING OF OUTAGES AND / OR ISSUES
.com DOSarrest External Monitoring S ystem (DEMS) User s Guide REAL BROWSER MONITORING OF YOUR WEBSITE MULTI-SENSOR ARRAY FOR ANALYSIS OF YOUR CDN'S PERFORMANCE IMMEDIATE DETECTION AND REPORTING OF OUTAGES
WEBAPP PATTERN FOR APACHE TOMCAT - USER GUIDE
WEBAPP PATTERN FOR APACHE TOMCAT - USER GUIDE Contents 1. Pattern Overview... 3 Features 3 Getting started with the Web Application Pattern... 3 Accepting the Web Application Pattern license agreement...
Securing your Apache Tomcat installation. Tim Funk November 2009
Securing your Apache Tomcat installation Tim Funk November 2009 Who am I? Tomcat committer for over 7 years Day job: programmer at Armstrong World Industries. Why? function search() { var q = document.search.q.value.split(/\w+/);
Understanding Server Configuration Parameters and Their Effect on Server Statistics
Understanding Server Configuration Parameters and Their Effect on Server Statistics Technical Note V2.0, 3 April 2012 2012 Active Endpoints Inc. ActiveVOS is a trademark of Active Endpoints, Inc. All other
A standards-based network monitoring system
A standards-based network monitoring system Javier F. Díaz Laura A. Fava Alejandro J. Sabolansky Computer Science School, National University of La Plata 50 and 120, 2nd floor, La Plata, Buenos Aires,
Java Mission Control
Java Mission Control Harald Bräuning Resources Main Resource: Java Mission Control Tutorial by Marcus Hirt http://hirt.se/downloads/oracle/jmc_tutorial.zip includes sample projects! Local copy: /common/fesa/jmcexamples/jmc_tutorial.zip
NetIQ Access Manager 4.1
White Paper NetIQ Access Manager 4.1 Performance and Sizing Guidelines Performance, Reliability, and Scalability Testing Revisions This table outlines all the changes that have been made to this document
Workflow Templates Library
Workflow s Library Table of Contents Intro... 2 Active Directory... 3 Application... 5 Cisco... 7 Database... 8 Excel Automation... 9 Files and Folders... 10 FTP Tasks... 13 Incident Management... 14 Security
FileNet System Manager Dashboard Help
FileNet System Manager Dashboard Help Release 3.5.0 June 2005 FileNet is a registered trademark of FileNet Corporation. All other products and brand names are trademarks or registered trademarks of their
Enterprise Application Management with Spring
Enterprise Application Management with Spring Why Manage Your Applications? Identify and eliminate performance bottlenecks Minimize application downtime Prevent problems before they occur Analyze trends
MEASURING WORKLOAD PERFORMANCE IS THE INFRASTRUCTURE A PROBLEM?
MEASURING WORKLOAD PERFORMANCE IS THE INFRASTRUCTURE A PROBLEM? Ashutosh Shinde Performance Architect ashutosh_shinde@hotmail.com Validating if the workload generated by the load generating tools is applied
Tuning WebSphere Application Server ND 7.0. Royal Cyber Inc.
Tuning WebSphere Application Server ND 7.0 Royal Cyber Inc. JVM related problems Application server stops responding Server crash Hung process Out of memory condition Performance degradation Check if the
Agility Database Scalability Testing
Agility Database Scalability Testing V1.6 November 11, 2012 Prepared by on behalf of Table of Contents 1 Introduction... 4 1.1 Brief... 4 2 Scope... 5 3 Test Approach... 6 4 Test environment setup... 7
24x7 Scheduler Multi-platform Edition 5.2
24x7 Scheduler Multi-platform Edition 5.2 Installing and Using 24x7 Web-Based Management Console with Apache Tomcat web server Copyright SoftTree Technologies, Inc. 2004-2014 All rights reserved Table
An Oracle White Paper September 2013. Advanced Java Diagnostics and Monitoring Without Performance Overhead
An Oracle White Paper September 2013 Advanced Java Diagnostics and Monitoring Without Performance Overhead Introduction... 1 Non-Intrusive Profiling and Diagnostics... 2 JMX Console... 2 Java Flight Recorder...
Serving dynamic webpages in less than a millisecond
Serving dynamic webpages in less than a millisecond John Fremlin 2008 November 8 Contents This talk is about a web-application framework I built. Introduction Benchmarking framework overhead High performance
CA Unified Infrastructure Management
CA Unified Infrastructure Management Probe Guide for IIS Server Monitoring iis v1.7 series Copyright Notice This online help system (the "System") is for your informational purposes only and is subject
ELIXIR LOAD BALANCER 2
ELIXIR LOAD BALANCER 2 Overview Elixir Load Balancer for Elixir Repertoire Server 7.2.2 or greater provides software solution for load balancing of Elixir Repertoire Servers. As a pure Java based software
Cache Configuration Reference
Sitecore CMS 6.2 Cache Configuration Reference Rev: 2009-11-20 Sitecore CMS 6.2 Cache Configuration Reference Tips and Techniques for Administrators and Developers Table of Contents Chapter 1 Introduction...
Rebasoft Auditor Quick Start Guide
Copyright Rebasoft Limited: 2009-2011 1 Release 2.1, Rev. 1 Copyright Notice Copyright 2009-2011 Rebasoft Ltd. All rights reserved. REBASOFT Software, the Rebasoft logo, Rebasoft Auditor are registered
PTC System Monitor Solution Training
PTC System Monitor Solution Training Patrick Kulenkamp June 2012 Agenda What is PTC System Monitor (PSM)? How does it work? Terminology PSM Configuration The PTC Integrity Implementation Drilling Down
Migrating IIS 6.0 Web Application to New Version Guidance
Migrating IIS 6.0 Web Application to New Version Guidance Migrating Web Application from IIS6.0 to IIS7.x and above Michael Li (PFE) PFE micl@microsoft.com Prepared for Users who want to upgrade IIS 6.0
One Server Per City: C Using TCP for Very Large SIP Servers. Kumiko Ono Henning Schulzrinne {kumiko, hgs}@cs.columbia.edu
One Server Per City: C Using TCP for Very Large SIP Servers Kumiko Ono Henning Schulzrinne {kumiko, hgs}@cs.columbia.edu Goal Answer the following question: How does using TCP affect the scalability and
Performance Monitoring API for Java Enterprise Applications
Performance Monitoring API for Java Enterprise Applications Purpose Perfmon4j has been successfully deployed in hundreds of production java systems over the last 5 years. It has proven to be a highly successful
Setting Up B2B Data Exchange for High Availability in an Active/Active Configuration
Setting Up B2B Data Exchange for High Availability in an Active/Active Configuration 2010 Informatica Abstract This document explains how to install multiple copies of B2B Data Exchange on a single computer.
How To Enable Pmi Metrics On A Websphere Server On A Microsoft Powerbook (Windows) On A Pc Or Macbook (Macintosh) On An Ubio Server On An Uniden (Windows 7) On Your Pc Or Ip
CA Application Performance Management for IBM WebSphere Application Server for Distributed Environments Guide Release 9.6 This Documentation, which includes embedded help systems and electronically distributed
JBoss Seam Performance and Scalability on Dell PowerEdge 1855 Blade Servers
JBoss Seam Performance and Scalability on Dell PowerEdge 1855 Blade Servers Dave Jaffe, PhD, Dell Inc. Michael Yuan, PhD, JBoss / RedHat June 14th, 2006 JBoss Inc. 2006 About us Dave Jaffe Works for Dell
Welcome to the JReport Server Monitor User's Guide
Welcome to the JReport Server Monitor User's Guide This User's Guide describes JReport Server Monitor. JReport Server Monitor, which is a standalone webbased application used to monitor the overall performance
Performance Test Report For OpenCRM. Submitted By: Softsmith Infotech.
Performance Test Report For OpenCRM Submitted By: Softsmith Infotech. About The Application: OpenCRM is a Open Source CRM software ideal for small and medium businesses for managing leads, accounts and
Monitoring SAP Business Objects
Monitoring SAP Business Objects eg Enterprise v6.0 Restricted Rights Legend The information contained in this document is confidential and subject to change without notice. No part of this document may
JBS-102: Jboss Application Server Administration. Course Length: 4 days
JBS-102: Jboss Application Server Administration Course Length: 4 days Course Description: Course Description: JBoss Application Server Administration focuses on installing, configuring, and tuning the
Using jvmstat and visualgc to Solve Memory Management Problems
Using jvmstat and visualgc to Solve Memory Management Problems java.sun.com/javaone/sf 1 Wally Wedel Sun Software Services Brian Doherty Sun Microsystems, Inc. Analyze JVM Machine Memory Management Problems
Foglight. Monitoring Application Servers User and Reference Guide
Foglight Monitoring Application Servers User and Reference Guide 2014 Quest Software, Inc. ALL RIGHTS RESERVED. This guide contains proprietary information protected by copyright. The software described
Glassfish Architecture.
Glassfish Architecture. First part Introduction. Over time, GlassFish has evolved into a server platform that is much more than the reference implementation of the Java EE specifcations. It is now a highly
Blackboard Learn TM, Release 9 Technology Architecture. John Fontaine
Blackboard Learn TM, Release 9 Technology Architecture John Fontaine Overview Background Blackboard Learn Deployment Model and Architecture Setup and Installation Common Administrative Tasks Tuning Integrating
1 How to Monitor Performance
1 How to Monitor Performance Contents 1.1. Introduction... 1 1.2. Performance - some theory... 1 1.3. Performance - basic rules... 3 1.4. Recognizing some common performance problems... 3 1.5. Monitoring,
Job Reference Guide. SLAMD Distributed Load Generation Engine. Version 1.8.2
Job Reference Guide SLAMD Distributed Load Generation Engine Version 1.8.2 June 2004 Contents 1. Introduction...3 2. The Utility Jobs...4 3. The LDAP Search Jobs...11 4. The LDAP Authentication Jobs...22
Monitoring.NET Framework with Verax NMS
Monitoring.NET Framework with Verax NMS Table of contents Abstract... 3 1. Adding.NET Framework to device inventory... 4 2. Adding sensors for.net Framework... 7 3. Adding performance counters for.net
Amazon Web Services Primer. William Strickland COP 6938 Fall 2012 University of Central Florida
Amazon Web Services Primer William Strickland COP 6938 Fall 2012 University of Central Florida AWS Overview Amazon Web Services (AWS) is a collection of varying remote computing provided by Amazon.com.
OSGi Service Platform in Integrated Management Environments Telefonica I+D, DIT-UPM, Telvent. copyright 2004 by OSGi Alliance All rights reserved.
OSGi Service Platform in Integrated Management Environments Telefonica I+D, DIT-UPM, Telvent copyright 2004 by OSGi Alliance All rights reserved. Today Management Environments Network Management. Monitors
Mastering Tomcat Development
hep/ Mastering Tomcat Development Ian McFarland Peter Harrison '. \ Wiley Publishing, Inc. ' Part I Chapter 1 Chapter 2 Acknowledgments About the Author Introduction Tomcat Configuration and Management
NetIQ AppManager for Apache Server UNIX Management Guide
NetIQ AppManager for Apache Server UNIX Management Guide November 2015 www.netiq.com/documentation Legal Notice For information about NetIQ legal notices, disclaimers, warranties, export and other use