[ome-users] OMERO crash: Too many open files

[Josh Moore]

On Jan 26, 2012, at 6:41 PM, Alexander Tournier wrote:

> Hi there,
> 
> I've been using OMERO quite heavily and ... it crashed. ie I can't login to OMERO anymore although others seem to be able to.
> The most interesting is the error message below.
> I was saving quite a lot of data and I realise that I didn't close the rawPixelStore which might explain the error.
> The problem I have at the moment is that it doesn't seem to be rectifying itself on its own.
> Is there a time delay by which the open files are forcefully closed and services resumed or do we need to reboot OMERO?

The services won't be closed until the session is closed. If you are somehow keeping that alive (e.g. by doing other activities) _and_ not closing your services, then you'll run out of file handles. Do you know how many are configured for your server?

~Josh

> Thanks,
> Alexander
> 
> 
> Error using omero.client/createSession
> Java exception occurred:
> Glacier2.PermissionDeniedException
>    reason = "Internal error. Please contact your administrator:
>               Wrapped Exception:
>               (org.springframework.ldap.CommunicationException):
>              uk-lri-ldco02.crwin.crnet.org:636; nested exception is
>              javax.naming.CommunicationException:
>              uk-lri-ldco02.crwin.crnet.org:636 [Root exception is
>              java.net.SocketException: Too many open files]"
>    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
>    at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
>    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown
>        Source)
>    at java.lang.reflect.Constructor.newInstance(Unknown Source)
>    at java.lang.Class.newInstance0(Unknown Source)
>    at java.lang.Class.newInstance(Unknown Source)
>    at
>        IceInternal.BasicStream$DynamicUserExceptionFactory.createAndThrow(BasicStream.java:2243)
>            at IceInternal.BasicStream.throwException(BasicStream.java:1632)
>    at IceInternal.Outgoing.throwUserException(Outgoing.java:442)
>    at Glacier2._RouterDelM.createSession(_RouterDelM.java:42)
>    at Glacier2.RouterPrxHelper.createSession(RouterPrxHelper.java:51)
>    at Glacier2.RouterPrxHelper.createSession(RouterPrxHelper.java:29)
>    at omero.client.createSession(client.java:628)
>    at omero.client.createSession(client.java:567)