Unable to backup the confluence data
Asked by saravanan subramanian:

Hi Team,

Iam unable to backup the confluence data and scheduled job also not working from dec-14-2012.

i am getting below error :

System Error

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Cause

javax.servlet.ServletException: Servlet execution threw an exception

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:313)

caused by: java.lang.OutOfMemoryError: Java heap space

at Unknown location

Stack Trace:\[hide\]

javax.servlet.ServletException: Servlet execution threw an exception

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:313)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

at com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:46)

at com.atlassian.plugin.servlet.filter.DelegatingPluginFilter$1.doFilter(DelegatingPluginFilter.java:66)

at com.atlassian.applinks.core.rest.context.ContextFilter.doFilter(ContextFilter.java:25)

at com.atlassian.plugin.servlet.filter.DelegatingPluginFilter.doFilter(DelegatingPluginFilter.java:74)

at com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:42)

org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)

at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)

at java.lang.Thread.run(Thread.java:619)

Caused by: java.lang.OutOfMemoryError: Java heap space

Referer URL

<http://fiinfraln1p.eur.nsroot.net:8090/admin/backup.action>

Please advise me and do the needful.

Thanks,

Saravanan subramanian


Answers:
author: Septa Cahyadiputra
body: Hi Subramanian,

Just want to inform you that it is not recommended for you to rely on XML backup and restore method as the sole backup solution of your production instance, since this method is meant only for evaluation purposes and other than the fact that it require a huge resources to finsihed it is also not reliable for huge instances (data lost due to corruption).

We highly recommend you to review our [documentation](https://confluence.atlassian.com/display/DOC/Production+Backup+Strategy) regarding our production instance backup strategy. Hope it helps.

Cheers,  
Septa Cahyadiputra


author: RianA
body: Hi Saravanan,

From the stacktrace it seems that it's out of memory issue. Please refer to this document for more information.  
\* <https://confluence.atlassian.com/display/CONFKB/Out+of+Memory+Heap+Space>  
\* <https://confluence.atlassian.com/display/CONFKB/How+to+Fix+Out+of+Memory+Errors+by+Increasing+Available+Memory>

Hope it helps

comments: author: saravanan subramanian
body: Hi Rian,

Thanks for your reply. Currently i have the below in setenv.sh

JAVA_OPTS="-Xms1769m -Xmx1769m -XX:MaxPermSize=512m $JAVA_OPTS -Djava.awt.headless=true "

could you please advise how much need to increase ?

Thanks,

Saravanan


author: Nic Brough -Adaptavist-
body: Add 128 to the MaxPermSize and try it again. You may need to go yet higher though


author: saravanan subramanian
body: Hi Nic,

Do i need to restart the server after adding the 128 to MaxPermSize ?


author: Septa Cahyadiputra
body: Yes restarting the instance is necessary for the changes to be applied.


Tags: backup