How to allocate VM memory to Tomcat ?

long TRUONG (365●4●116●146) | asked Aug 11 '14, 9:52 p.m.
edited Aug 20 '14, 12:04 p.m. by Stephanie Taylor (241●1●5)

We are using RTC/RRC 4.0.3 on Windows.

On our PRD env we got:

VM Memory Usage

Maximum Memory Allocation	10000 MB
Current Memory Allocation	10000 MB

and on TEST:

VM Memory Usage

Maximum Memory Allocation 3667 MB

Current Memory Allocation 3015 MB

We have upgraded our TEST VM to match PRD VM at 12 GB memory and 4 CPUs

We are looking to increase the VM memory allocation to Tomcat on TEST to match PRD.

Nobody remember how it was set previously, we can't yet find how to set the allocation for Tomcat yet.

We seem to use same heap size of 4G on both PRD and TEST:

TEST:

D:\IBM\rtc_403\JazzTeamServer\server>p:grep -i mx *.bat

repotools-ccm.bat:set VMARGS=%VMARGS% -Xmx1500M

repotools-jts - Copy.bat:set VMARGS=%VMARGS% -Xmx1500M

repotools-jts.bat:set VMARGS=%VMARGS% -Xmx3000M

server.startup.bat:set JAVA_OPTS=%JAVA_OPTS% -Djazz.connector.algorithm=IbmX509

server.startup.bat:set JAVA_OPTS=%JAVA_OPTS% -Xmx4G

PRD:

D:\IBM\rtc_403\JazzTeamServer\server>p:grep -i mx *.bat

repotools-ccm.bat:set VMARGS=%VMARGS% -Xmx1500M

repotools-jts - Copy.bat:set VMARGS=%VMARGS% -Xmx1500M

repotools-jts.bat:set VMARGS=%VMARGS% -Xmx3000M

server.startup - Copy.bat:set JAVA_OPTS=%JAVA_OPTS% -Djazz.connector.algorithm=IbmX509

server.startup - Copy.bat:set JAVA_OPTS=%JAVA_OPTS% -Xmx4G

server.startup.bat:set JAVA_OPTS=%JAVA_OPTS% -Djazz.connector.algorithm=IbmX509

server.startup.bat:set JAVA_OPTS=%JAVA_OPTS% -Xmx4G

Can't find a way to execute any alternatives given in:

"Assuming that you've downloaded and installed Tomcat as Windows Service Installer exe file from theTomcat homepage, then check the Apache feather icon in the systray (or when absent, run Monitor Tomcat from the start menu). Doubleclick the feather icon and go to the Java tab. There you can configure the memory.

And grepping from.../tomcat/bin/*.bat files (both are similar as they are cloned images):

TEST:

D:\IBM\rtc_403\JazzTeamServer\server\tomcat\bin>set|P:grep -i CATALINA

CATALINA_HOME=D:\IBM\rtc_403\JazzTeamServer\server\tomcat

D:\IBM\rtc_403\JazzTeamServer\server\tomcat\bin>set|P:grep -i JAVA

JAVA_OPTS=-agentpath:d:\dlagent\dtagent.dll=name=ApplicationServer_RTC,server=n0

1apl425.tent.trt.csaa.pri:10002

D:\IBM\rtc_403\JazzTeamServer\server\tomcat\bin>set|P:grep -i OPTS

JAVA_OPTS=-agentpath:d:\dlagent\dtagent.dll=name=ApplicationServer_RTC,server=n0

1apl425.tent.trt.csaa.pri:10002

D:\IBM\rtc_403\JazzTeamServer\server\tomcat\bin>P:grep -i OPTS *.bat

catalina.bat:rem CATALINA_OPTS (Optional) Java runtime options used when the

"start",

catalina.bat:rem Include here and not in JAVA_OPTS all options

, that should

catalina.bat:rem JAVA_OPTS (Optional) Java runtime options used when any

command

catalina.bat:rem Include here and not in CATALINA_OPTS all opt

ions, that

catalina.bat:rem Most options should go into CATALINA_OPTS.

catalina.bat:rem JPDA_OPTS (Optional) Java runtime options used when the

"jpda start"

catalina.bat:set JAVA_OPTS=%JAVA_OPTS% %LOGGING_CONFIG%

catalina.bat:set JAVA_OPTS=%JAVA_OPTS% %LOGGING_MANAGER%

catalina.bat:set DEBUG_OPTS=

catalina.bat:if not "%JPDA_OPTS%" == "" goto gotJpdaOpts

catalina.bat:set JPDA_OPTS=-agentlib:jdwp=transport=%JPDA_TRANSPORT%,address=%JP

DA_ADDRESS%,server=y,suspend=%JPDA_SUSPEND%

catalina.bat::gotJpdaOpts

catalina.bat:set DEBUG_OPTS=-sourcepath "%CATALINA_HOME%\..\..\java"

catalina.bat:set CATALINA_OPTS=

catalina.bat:%_EXECJAVA% %JAVA_OPTS% %CATALINA_OPTS% %DEBUG_OPTS% -Djava.endorse

d.dirs="%JAVA_ENDORSED_DIRS%" -classpath "%CLASSPATH%" -Dcatalina.base="%CATALIN

A_BASE%" -Dcatalina.home="%CATALINA_HOME%" -Djava.io.tmpdir="%CATALINA_TMPDIR%"

%MAINCLASS% %CMD_LINE_ARGS% %ACTION%

catalina.bat:%_EXECJAVA% %JAVA_OPTS% %CATALINA_OPTS% %DEBUG_OPTS% -Djava.endorse

d.dirs="%JAVA_ENDORSED_DIRS%" -classpath "%CLASSPATH%" -Djava.security.manager -

Djava.security.policy=="%SECURITY_POLICY_FILE%" -Dcatalina.base="%CATALINA_BASE%

" -Dcatalina.home="%CATALINA_HOME%" -Djava.io.tmpdir="%CATALINA_TMPDIR%" %MAINCL

ASS% %CMD_LINE_ARGS% %ACTION%

catalina.bat:%_EXECJAVA% %JAVA_OPTS% %CATALINA_OPTS% %JPDA_OPTS% %DEBUG_OPTS% -D

java.endorsed.dirs="%JAVA_ENDORSED_DIRS%" -classpath "%CLASSPATH%" -Dcatalina.ba

se="%CATALINA_BASE%" -Dcatalina.home="%CATALINA_HOME%" -Djava.io.tmpdir="%CATALI

NA_TMPDIR%" %MAINCLASS% %CMD_LINE_ARGS% %ACTION%

catalina.bat:%_EXECJAVA% %JAVA_OPTS% %CATALINA_OPTS% %JPDA_OPTS% %DEBUG_OPTS% -D

java.endorsed.dirs="%JAVA_ENDORSED_DIRS%" -classpath "%CLASSPATH%" -Djava.securi

ty.manager -Djava.security.policy=="%SECURITY_POLICY_FILE%" -Dcatalina.base="%CA

TALINA_BASE%" -Dcatalina.home="%CATALINA_HOME%" -Djava.io.tmpdir="%CATALINA_TMPD

IR%" %MAINCLASS% %CMD_LINE_ARGS% %ACTION%

s.bat:set JAVA_OPTS=-agentpath:d:\dlagent\dtagent.dll=name=ApplicationServer_RTC

,server=n01apl425.tent.trt.csaa.pri:10002 %JAVA_OPTS%

service.bat:set JAVA_OPTS=-agentpath:d:\dlagent\dtagent.dll=name=ApplicationServ

er_RTC,server=n01apl425.tent.trt.csaa.pri:10002 %JAVA_OPTS%

startup.bat:set JAVA_OPTS=-agentpath:d:\dlagent\dtagent.dll=name=ApplicationServ

er_RTC,server=n01apl425.tent.trt.csaa.pri:10002 %JAVA_OPTS%

tool-wrapper.bat:rem TOOL_OPTS (Optional) Java runtime options.

tool-wrapper.bat:rem JAVA_OPTS (Optional) Java runtime options.

tool-wrapper.bat:set JAVA_OPTS=%JAVA_OPTS% -Djava.util.logging.manager=org.apach

e.juli.ClassLoaderLogManager

tool-wrapper.bat:%_RUNJAVA% %JAVA_OPTS% %TOOL_OPTS% -Djava.endorsed.dirs="%JAVA_

ENDORSED_DIRS%" -classpath "%CLASSPATH%" -Dcatalina.home="%CATALINA_HOME%" org.a

pache.catalina.startup.Tool %CMD_LINE_ARGS%

________________________________________________________________________

PRD

D:\IBM\rtc_403\JazzTeamServer\server\tomcat\bin>set|P:grep -i CATALINA

CATALINA_HOME=D:\IBM\rtc_403\JazzTeamServer\server\tomcat

D:\IBM\rtc_403\JazzTeamServer\server\tomcat\bin>set|P:grep -i JAVA

D:\IBM\rtc_403\JazzTeamServer\server\tomcat\bin>set|P:grep -i OPTS

D:\IBM\rtc_403\JazzTeamServer\server\tomcat\bin>P:grep -i OPTS *.bat

catalina.bat:rem CATALINA_OPTS (Optional) Java runtime options used when th

"start",

catalina.bat:rem Include here and not in JAVA_OPTS all option

, that should

catalina.bat:rem JAVA_OPTS (Optional) Java runtime options used when an

command

catalina.bat:rem Include here and not in CATALINA_OPTS all op

ions, that

catalina.bat:rem Most options should go into CATALINA_OPTS.

catalina.bat:rem JPDA_OPTS (Optional) Java runtime options used when th

"jpda start"

catalina.bat:set JAVA_OPTS=%JAVA_OPTS% %LOGGING_CONFIG%

catalina.bat:set JAVA_OPTS=%JAVA_OPTS% %LOGGING_MANAGER%

catalina.bat:set DEBUG_OPTS=

catalina.bat:if not "%JPDA_OPTS%" == "" goto gotJpdaOpts

catalina.bat:set JPDA_OPTS=-agentlib:jdwp=transport=%JPDA_TRANSPORT%,address=%J

DA_ADDRESS%,server=y,suspend=%JPDA_SUSPEND%

catalina.bat::gotJpdaOpts

catalina.bat:set DEBUG_OPTS=-sourcepath "%CATALINA_HOME%\..\..\java"

catalina.bat:set CATALINA_OPTS=

catalina.bat:%_EXECJAVA% %JAVA_OPTS% %CATALINA_OPTS% %DEBUG_OPTS% -Djava.endors

d.dirs="%JAVA_ENDORSED_DIRS%" -classpath "%CLASSPATH%" -Dcatalina.base="%CATALI

A_BASE%" -Dcatalina.home="%CATALINA_HOME%" -Djava.io.tmpdir="%CATALINA_TMPDIR%"

%MAINCLASS% %CMD_LINE_ARGS% %ACTION%

catalina.bat:%_EXECJAVA% %JAVA_OPTS% %CATALINA_OPTS% %DEBUG_OPTS% -Djava.endors

d.dirs="%JAVA_ENDORSED_DIRS%" -classpath "%CLASSPATH%" -Djava.security.manager

Djava.security.policy=="%SECURITY_POLICY_FILE%" -Dcatalina.base="%CATALINA_BASE

" -Dcatalina.home="%CATALINA_HOME%" -Djava.io.tmpdir="%CATALINA_TMPDIR%" %MAINC

ASS% %CMD_LINE_ARGS% %ACTION%

catalina.bat:%_EXECJAVA% %JAVA_OPTS% %CATALINA_OPTS% %JPDA_OPTS% %DEBUG_OPTS% -

java.endorsed.dirs="%JAVA_ENDORSED_DIRS%" -classpath "%CLASSPATH%" -Dcatalina.b

se="%CATALINA_BASE%" -Dcatalina.home="%CATALINA_HOME%" -Djava.io.tmpdir="%CATAL

NA_TMPDIR%" %MAINCLASS% %CMD_LINE_ARGS% %ACTION%

catalina.bat:%_EXECJAVA% %JAVA_OPTS% %CATALINA_OPTS% %JPDA_OPTS% %DEBUG_OPTS% -

java.endorsed.dirs="%JAVA_ENDORSED_DIRS%" -classpath "%CLASSPATH%" -Djava.secur

ty.manager -Djava.security.policy=="%SECURITY_POLICY_FILE%" -Dcatalina.base="%C

TALINA_BASE%" -Dcatalina.home="%CATALINA_HOME%" -Djava.io.tmpdir="%CATALINA_TMP

IR%" %MAINCLASS% %CMD_LINE_ARGS% %ACTION%

tool-wrapper.bat:rem TOOL_OPTS (Optional) Java runtime options.

tool-wrapper.bat:rem JAVA_OPTS (Optional) Java runtime options.

tool-wrapper.bat:set JAVA_OPTS=%JAVA_OPTS% -Djava.util.logging.manager=org.apac

e.juli.ClassLoaderLogManager

tool-wrapper.bat:%_RUNJAVA% %JAVA_OPTS% %TOOL_OPTS% -Djava.endorsed.dirs="%JAVA

ENDORSED_DIRS%" -classpath "%CLASSPATH%" -Dcatalina.home="%CATALINA_HOME%" org.

pache.catalina.startup.Tool %CMD_LINE_ARGS%

Comments

Joseph Mao commented Aug 12 '14, 12:04 a.m.

JAZZ DEVELOPER

Hi long,

You can update server.startup.bat. By default it is set to allocate 4G as following:

set JAVA_OPTS=%JAVA_OPTS% -Xmx4G

set JAVA_OPTS=%JAVA_OPTS% -Xms4G

set JAVA_OPTS=%JAVA_OPTS% -Xmn512M

Accepted answer

permanent link

Donald Nong (14.5k●4●14) | answered Aug 12 '14, 10:21 p.m.

Since you have configured Tomcat as a Windows service, you need to configure JVM in the service control panel, as shown in your attached screen shot. The -Xmx parameter should be in the "Java Options" box, and you should see it if you scroll down (assuming you previously followed the standard instructions https://jazz.net/help-dev/clm/topic/com.ibm.jazz.install.doc/topics/t_run_rqm64_win_service.html). Also, to avoid confusion in the future, if you do have the -Xmx and -Xms parameters in the "Java Options" box, clear the two boxes "Maximum memory pool" and "Initial memory pool".

long TRUONG selected this answer as the correct answer

Comments

long TRUONG commented Aug 13 '14, 2:16 p.m.

Thx Don.

Tunnel vision! Didn't think about setting up service and did not remember the tomcat7w.exe.

It's all about the answers!

Related questions

How to allocate VM memory to Tomcat ?

Accepted answer

Your answer