We are attracted by products sold on their platform and suppose that this is a big chance to own them at a lower price than normal. We hear about Smartsvn.Com special deals, promo code, discount code, and are excited about it. Note: In Linux and UNIX, you may need to run this command as sudo -u user jmap -dump:format=b, file=heapdump.hprof, where "user" is the user that the java process is running as.Among countless shopping choices today, people are sometimes confused not knowing what is appropriate and best. In a 64-bit environment, you need to remove the bundled JRE and allow the application server to run on the system installed 64-bit JRE in order for the 64-bit jmap tool to work successfully. The bundled version of Liferay + Tomcat/Jboss comes with a bundled 32-bit version JRE. If you see an error message, Unable to attach to 32-bit process running under WOW64, this is because you are trying to use the jmap tool from JDK 1.6 to take thread dumps from a process running on JDK 1.5. Or jcmd GC.heap_dump /path/to/destination/file.hprof If you do not use the live option, then jmap, by default, will take a snapshot of all of the memory in the JVM, which may take up to a few hours depending on the heap size. From the command prompt execute: jmap -dump:live,format=b,file=heapdump.hprof Request a heap dump of the live objects from the JVM. After executing netstat -noa command:ġ27.0.0.1:8080 127.0.0.1:63796 ESTABLISHED 4752Ĭompare 4752 to the other lines and yes, this looks like the PID assigned to Tomcat. As an example, Tomcat uses two connector ports: 8080, 8005, and 8009. Look for the connection that is using the port your application server is using. This command will return a list of Active connections. Step 1 AlternativesĬtrl+Shift+Esc to open the task manager and find the PID under 'Processes'.įrom the command prompt, execute netstat command: netstat -noa =C:\java\jdk1.6.0_18 -Xms8mĢ936 maphoreName=c:_program files (x86)_smartsvn 6_bin_smartsvn.exe0 -Dexe4j.moduleName=C:\Program Files (x86)\SmartSVN 6\bin\smartsvn.exe -Dexe4j.tempDir=C:\Users\liferay\AppData\Local\Temp\e4j8FA1.tmp_dir20624 -Dexe4j.unextractedPosition=211749 nsoleCodepage=cp0 =true -Xms24m -Xmx256mĤ752 Bootstrap -Dfile.encoding=UTF8 4Stack=true .WebappClassLoader.ENABLE_CLEAR_REFERENCES=false -Duser.timezone=GMT -Xmx1024m -XX:MaxPermSize=256m .file=E:\projects\temp\liferay-portal-6.0-ee-sp2\tomcat-6.0.32\conf\logging.properties =E:\projects\temp\liferay-portal-6.0-ee-sp2\tomcat-6.0.32\endorsed -Dcatalina.base=E:\projects\temp\liferay-portal-6.0-ee-sp2\tomcat-6.0.32 =E:\projects\temp\liferay-portal-6.0-ee-sp2\tomcat-6.0.32 -Djava.io.tmpdir=E:\projects\temp\liferay-portal-6.0-ee-sp2\tomcat-6.0.32\tempĤ752 is running Liferay Portal based on the JVM arguments. The pid is listed as well as the JVM arguments, which will help you to identify which PID belongs to the application server running Liferay Portal. You can run this command like this: jps -v. The java JDK ships with the jps command which lists all active java process ID's. The first piece of information you will need to be able to obtain a thread dump is the java process's PID.
#Smartsvn out of memory manual
ResolutionĪutomatically generate a heap dump whenever Out Of Memory exceptions occur by adding the following JVM arguments: -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=heapdump.hprof Manual Heap Dumps: Step 1 Heap dumps are saved on disk and will be the same physical size as the JVM's current memory usage.
Note: Heap dumps will take anywhere between ten seconds to several minutes. The closer to the OutOfMemory the JVM is when the heap dump is taken, the more useful it will be for troubleshooting any potential Java memory issues. When investigating mismanaged memory, one heap dump is usually good enough if the heap dump is generated when the JVM is experiencing or very close to experiencing an OutOfMemory error. The Java heap is the space allocated to the JVM to create new objects in memory. When a system runs into out of memory errors or other memory related issues it is helpful to have a heap dump.Ī heap dump is a snapshot of all the objects that are currently in the JVM. Any implementation of these principles is the responsibility of the subscriber. Liferay is not responsible for any instructions herein or referenced regarding these products. Liferay Support does not recommend or endorse specific third-party products over others.
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