Ok, the plugins I upgraded were: bouncycastle API 2.16.0 > 2.16.1 Git client 2.4.0 > 2.4.1 Support core 2.39 > 2.40 Token macro 2.0 > 2.1 SCM API 1.3 > 2.1.1 Subversion 2.7.1 > 2.7.2 Email Extension 2.57.1 > 2.57.2 Matrix Authorisation Strategy 1.4 > 1.5 Static Analysis Utilities 1.84 > 1.86 Warnings 4.60 > 4.62
I also installed Blue Ocean 1.0.0 Best regards David From: [email protected] [mailto:[email protected]] On Behalf Of Baptiste Mathus Sent: 13 April 2017 13:37 To: [email protected] Subject: Re: Too many open files If you can at least post here the list of upgraded plugins, it could serve as a reference if this issue is encountered by any other. Thanks! 2017-04-13 10:41 GMT+02:00 David Aldrich <[email protected]<mailto:[email protected]>>: Yes, I agree. But I can’t practically roll back each upgraded plugin on the production server easily. I’ll try increasing the limits first. From: [email protected]<mailto:[email protected]> [mailto:[email protected]<mailto:[email protected]>] On Behalf Of Baptiste Mathus Sent: 13 April 2017 09:38 To: [email protected]<mailto:[email protected]> Cc: David Aldrich <[email protected]<mailto:[email protected]>> Subject: Re: Too many open files Also, this could be a bug. So, you need to clarify which "some plugins" you upgraded. Because if all was fine until now, then there may be some bug somewhere. Or maybe not if you were already close to the ulimit max without knowing it for some time. But impossible to tell from here. 2017-04-13 10:23 GMT+02:00 Victor Martinez <[email protected]<mailto:[email protected]>>: Hi there, You could read the below blog entry: - https://support.cloudbees.com/hc/en-us/articles/204246140-Too-many-open-files Although it's the cloudbees support page, but it's the same core in the end. In my case, # ulimit -a .... open files (-n) 65536 .... Cheers On Thursday, 13 April 2017 08:37:42 UTC+1, David Aldrich wrote: Hi Since updating some plugins we are getting lots of “Too many open files” warnings. Here’s an example: Apr 12, 2017 9:38:35 PM WARNING org.eclipse.jetty.util.log.JavaUtilLog warn java.io.IOException: Too many open files at sun.nio.ch<http://sun.nio.ch>.ServerSocketChannelImpl.accept0(Native Method) at sun.nio.ch<http://sun.nio.ch>.ServerSocketChannelImpl.accept(ServerSocketChannelImpl.java:241) at org.eclipse.jetty.server.ServerConnector.accept(ServerConnector.java:377) at org.eclipse.jetty.server.AbstractConnector$Acceptor.run(AbstractConnector.java:500) at winstone.BoundedExecutorService$1.run(BoundedExecutorService.java:77) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745) I know that there is a File Leak Detector plugin but such investigation seems quite involved. On the master, we have: $ ulimit -a <snip> open files (-n) 1024 Should 1024 be sufficient? Do I need to worry about limits on the slaves? 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