Description
Running Jetty 9.4.6.v20170531 on a debian 9.3
We recently moved from XWiki 6.4.4 to XWiki 9.9 then 9.11.1.
6.4.4 to 9.9 migration hapened on Jan/15-16
I think the issue started raising up starting from XWiki 9.11.1, which happened on Jan/31. We can observe that on the attached graph (sorry for the Y-axis ...)
The number of opened file limit for the java process was historically 32768 (for all versions), and it has never reach it until two days ago where I raised to 65535.
You can see on the graph that from a fresh start, it's doesn't always raise at the same rate and can reach the limit more or less rapidly.
Now, I have inspected the number of opened files, here is a report with about 1 hours interval :
time is 9:38 number of *single* files (on filesystem) opened by the process : 906 (sudo lsof -p 32287 | egrep '(REG|DIR)' | awk '{print $9'} | sort | uniq -c |sort -n | wc -l) number of handlers (all types) for the process : 13923 (sudo lsof -p 32287 | wc -l) partial handlers listing, by unique file (sudo lsof -p 32287 | egrep '(REG|DIR)' | awk '{print $9'} | sort | uniq -c |sort -n) ( ... < 23 ) 23 /appdata/webapps/root/resources/icons/xwiki/favicon144.png 23 /appdata/webapps/root/resources/icons/xwiki/favicon16.png 23 /appdata/webapps/root/resources/icons/xwiki/favicon.ico 23 /appdata/webapps/root/resources/icons/xwiki/favicon.svg 35 /appdata/webapps/root/resources/icons/datamodel/calendar.png 36 /appdata/webapps/root/resources/uicomponents/widgets/datepicker/dateTimePicker.js 39 /appdata/webapps/root/resources/icons/silk/arrow_refresh.png 39 /appdata/webapps/root/resources/icons/silk/lock_edit.png 39 /appdata/webapps/root/resources/icons/silk/page_white_copy.png 39 /appdata/webapps/root/resources/icons/silk/page_white_edit.png 40 /appdata/webapps/root/resources/icons/silk/bullet_arrow_up.png 41 /appdata/webapps/root/resources/icons/silk/textfield_rename.png 44 /appdata/webapps/root/resources/icons/silk/bullet_arrow_down.png 63 /appdata/webapps/root/resources/icons/silk/user.png 76 /appdata/webapps/root/resources/icons/xwiki/ajax-loader-large.gif 183 /appdata/webapps/root/resources/icons/silk/link.png 185 /appdata/webapps/root/resources/icons/silk/cancel.png 185 /appdata/webapps/root/resources/icons/silk/delete.png 185 /appdata/webapps/root/resources/icons/silk/eye.png 185 /appdata/webapps/root/resources/icons/silk/textfield_add.png 193 /appdata/webapps/root/resources/icons/silk/tag_yellow.png 227 /appdata/webapps/root/resources/icons/xwiki/pagination-controls.png 368 /appdata/webapps/root/resources/icons/silk/add.png 368 /appdata/webapps/root/resources/icons/silk/comment.png 368 /appdata/webapps/root/resources/icons/silk/comments_add.png 368 /appdata/webapps/root/resources/icons/silk/folder.png 368 /appdata/webapps/root/resources/icons/silk/note_add.png 368 /appdata/webapps/root/resources/icons/silk/note.png 368 /appdata/webapps/root/resources/icons/xwiki/accordion.png 368 /appdata/webapps/root/resources/icons/xwiki/parent_edit.gif 368 /appdata/webapps/root/resources/uicomponents/require/deferred.js 369 /appdata/webapps/root/resources/icons/silk/attach.png 369 /appdata/webapps/root/resources/icons/silk/bullet_add.png 369 /appdata/webapps/root/resources/icons/silk/bullet_toggle_minus.png 369 /appdata/webapps/root/resources/icons/silk/bullet_toggle_plus.png 369 /appdata/webapps/root/resources/icons/silk/chart_organisation.png 369 /appdata/webapps/root/resources/icons/silk/cross.png 369 /appdata/webapps/root/resources/icons/silk/help.png 369 /appdata/webapps/root/resources/icons/silk/page_white_text.png 369 /appdata/webapps/root/resources/icons/silk/pencil.png 369 /appdata/webapps/root/resources/icons/silk/tick.png 369 /appdata/webapps/root/resources/icons/xwiki/external-link.png 369 /appdata/webapps/root/resources/icons/xwiki/spinner.gif 369 /appdata/webapps/root/resources/icons/xwiki/spinner-white.gif 369 /appdata/webapps/root/resources/js/prototype/prototype.js 369 /appdata/webapps/root/resources/js/xwiki/compatibility.js 369 /appdata/webapps/root/resources/js/xwiki/eventsBridge.js 369 /appdata/webapps/root/resources/js/xwiki/markerScript.js 369 /appdata/webapps/root/resources/js/xwiki/meta.js time is 10:37 number of *single* files (on filesystem) opened by the process : 914 (sudo lsof -p 32287 | egrep '(REG|DIR)' | awk '{print $9'} | sort | uniq -c |sort -n | wc -l) number of handlers (all types) for the process : 13874 (sudo lsof -p 32287 | wc -l) partial handlers listing, by unique file (sudo lsof -p 32287 | egrep '(REG|DIR)' | awk '{print $9'} | sort | uniq -c |sort -n) ... (< 24) 24 /appdata/webapps/root/resources/icons/xwiki/favicon144.png 24 /appdata/webapps/root/resources/icons/xwiki/favicon16.png 24 /appdata/webapps/root/resources/icons/xwiki/favicon.ico 24 /appdata/webapps/root/resources/icons/xwiki/favicon.svg 36 /appdata/webapps/root/resources/icons/datamodel/calendar.png 37 /appdata/webapps/root/resources/uicomponents/widgets/datepicker/dateTimePicker.js 39 /appdata/webapps/root/resources/icons/silk/arrow_refresh.png 39 /appdata/webapps/root/resources/icons/silk/lock_edit.png 39 /appdata/webapps/root/resources/icons/silk/page_white_copy.png 39 /appdata/webapps/root/resources/icons/silk/page_white_edit.png 40 /appdata/webapps/root/resources/icons/silk/bullet_arrow_up.png 41 /appdata/webapps/root/resources/icons/silk/textfield_rename.png 44 /appdata/webapps/root/resources/icons/silk/bullet_arrow_down.png 66 /appdata/webapps/root/resources/icons/silk/user.png 77 /appdata/webapps/root/resources/icons/xwiki/ajax-loader-large.gif 186 /appdata/webapps/root/resources/icons/silk/link.png 189 /appdata/webapps/root/resources/icons/silk/cancel.png 189 /appdata/webapps/root/resources/icons/silk/delete.png 189 /appdata/webapps/root/resources/icons/silk/eye.png 189 /appdata/webapps/root/resources/icons/silk/textfield_add.png 196 /appdata/webapps/root/resources/icons/silk/tag_yellow.png 230 /appdata/webapps/root/resources/icons/xwiki/pagination-controls.png 373 /appdata/webapps/root/resources/icons/silk/add.png 373 /appdata/webapps/root/resources/icons/silk/comment.png 373 /appdata/webapps/root/resources/icons/silk/comments_add.png 373 /appdata/webapps/root/resources/icons/silk/note_add.png 373 /appdata/webapps/root/resources/icons/silk/note.png 373 /appdata/webapps/root/resources/icons/xwiki/accordion.png 373 /appdata/webapps/root/resources/icons/xwiki/parent_edit.gif 373 /appdata/webapps/root/resources/uicomponents/require/deferred.js 374 /appdata/webapps/root/resources/icons/silk/attach.png 374 /appdata/webapps/root/resources/icons/silk/bullet_add.png 374 /appdata/webapps/root/resources/icons/silk/bullet_toggle_minus.png 374 /appdata/webapps/root/resources/icons/silk/bullet_toggle_plus.png 374 /appdata/webapps/root/resources/icons/silk/chart_organisation.png 374 /appdata/webapps/root/resources/icons/silk/cross.png 374 /appdata/webapps/root/resources/icons/silk/folder.png 374 /appdata/webapps/root/resources/icons/silk/help.png 374 /appdata/webapps/root/resources/icons/silk/page_white_text.png 374 /appdata/webapps/root/resources/icons/silk/pencil.png 374 /appdata/webapps/root/resources/icons/silk/tick.png 374 /appdata/webapps/root/resources/icons/xwiki/external-link.png 374 /appdata/webapps/root/resources/icons/xwiki/spinner.gif 374 /appdata/webapps/root/resources/icons/xwiki/spinner-white.gif 374 /appdata/webapps/root/resources/js/prototype/prototype.js 374 /appdata/webapps/root/resources/js/xwiki/compatibility.js 374 /appdata/webapps/root/resources/js/xwiki/eventsBridge.js 374 /appdata/webapps/root/resources/js/xwiki/markerScript.js 374 /appdata/webapps/root/resources/js/xwiki/meta.js
It doesn't sound good to me that a single file gets that much handler opened on it, and that those numbers are keeping increasing.
Regards,
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Issue Links
- is related to
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XWIKI-15162 HTML export does not work if XWiki WAR is not unpacked
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