Seems as if this was caused by WICKET-6471
<https://issues.apache.org/jira/browse/WICKET-6471> - FileSystemResource
file descriptor leak.
We did an upgrade to wicket 7.10 and hopefully it will solve it.
Thanks anyway!
Best regards,
Claudia Hirt
Am 18.04.2018 um 18:47 schrieb Francois Meillet:
you can count all open file handles via lsof | wc -l
François
Le 18 avr. 2018 à 17:42, Francois Meillet <[email protected]> a écrit :
Hi Claudia,
you need to update the limits in the linux kernel
have a look at
https://serverfault.com/questions/20387/too-many-open-files-on-debian?utm_medium=organic&utm_source=google_rich_qa&utm_campaign=google_rich_qa
<https://serverfault.com/questions/20387/too-many-open-files-on-debian?utm_medium=organic&utm_source=google_rich_qa&utm_campaign=google_rich_qa>
François
Le 18 avr. 2018 à 17:24, Claudia Hirt <[email protected]
<mailto:[email protected]>> a écrit :
Hi all,
I get the following error when there are a lot of sessions on the system:
[4/18/18 11:49:59:291 CEST] 00000080 SystemOut O myapp 18/04/2018
11:49:59,282 ERROR (DiskDataStore.java:434)
-/QIBM/UserData/WebSphere/AppServer/V85/Express/profiles/node01/temp/node01/node01/myapp/myapp.war/wicket.wicket-filestore/39/7429/6wE5N0QWVikdMSdO-oSbWCb/data
(Too many open files)
java.io.FileNotFoundException:
/QIBM/UserData/WebSphere/AppServer/V85/Express/profiles/node01/temp/node01/node01/myapp/myapp.war/wicket.wicket-filestore/39/7429/6wE5N0QWVikdMSdO-oSbWCb/data
(Too many open files)
at java.io.RandomAccessFile.open(Native Method)
at java.io.RandomAccessFile.<init>(RandomAccessFile.java:253)
at
org.apache.wicket.pageStore.DiskDataStore$SessionEntry.getFileChannel(DiskDataStore.java:428)
at
org.apache.wicket.pageStore.DiskDataStore$SessionEntry.savePage(DiskDataStore.java:346)
at
org.apache.wicket.pageStore.DiskDataStore.storeData(DiskDataStore.java:185)
at
org.apache.wicket.pageStore.AsynchronousDataStore$PageSavingRunnable.run(AsynchronousDataStore.java:355)
at java.lang.Thread.run(Thread.java:798)
This leads to a total breakdown of file system in my case.
I saw this already was an issue here:
http://apache-wicket.1842946.n4.nabble.com/DiskDataStore-errors-in-production-td4665842.html
<http://apache-wicket.1842946.n4.nabble.com/DiskDataStore-errors-in-production-td4665842.html>
but there was no solution.
Are there some settings in PageStore or anything to avoid this problem?
Best regards,
Claudia Hirt
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