Not sure about your environment so it's hard to say why you haven't ran
into this issue before.
As for the suggested limit, I am not sure, it would depend on your system
and if you really want to limit it. I personally just jack it up to 50000.
On Wed, May 4, 2016 at 6:13 PM, Susheel Kumar <susheel2...@gmail.com> wrote:
> Thanks, Nick. Do we know any suggested # for file descriptor limit with
> Solr6? Also wondering why i haven't seen this problem before with Solr
> 5.x?
>
> On Wed, May 4, 2016 at 4:54 PM, Nick Vasilyev <nick.vasily...@gmail.com>
> wrote:
>
> > It looks like you have too many open files, try increasing the file
> > descriptor limit.
> >
> > On Wed, May 4, 2016 at 3:48 PM, Susheel Kumar <susheel2...@gmail.com>
> > wrote:
> >
> > > Hello,
> > >
> > > I am trying to setup 2 node Solr cloud 6 cluster with ZK 3.4.8 and used
> > the
> > > install service to setup solr.
> > >
> > > After launching Solr Admin Panel on server1, it looses connections in
> few
> > > seconds and then comes back and other node server2 is marked as Down in
> > > cloud graph. After few seconds its loosing the connection and comes
> back.
> > >
> > > Any idea what may be going wrong? Has anyone used Solr 6 with ZK 3.4.8.
> > > Have never seen this error before with solr 5.x with ZK 3.4.6.
> > >
> > > Below log from server1 & server2. The ZK has 3 nodes with chroot
> > enabled.
> > >
> > > Thanks,
> > > Susheel
> > >
> > > server1/solr.log
> > >
> > > ====
> > >
> > >
> > > 2016-05-04 19:20:53.804 INFO (qtp1989972246-14) [ ]
> > > o.a.s.c.c.ZkStateReader path=[/collections/collection1]
> > > [configName]=[collection1] specified config exists in ZooKeeper
> > >
> > > 2016-05-04 19:20:53.806 INFO (qtp1989972246-14) [ ]
> > o.a.s.s.HttpSolrCall
> > > [admin] webapp=null path=/admin/collections
> > > params={action=CLUSTERSTATUS&wt=json&_=1462389588125} status=0 QTime=25
> > >
> > > 2016-05-04 19:20:53.859 INFO (qtp1989972246-19) [ ]
> > > o.a.s.h.a.CollectionsHandler Invoked Collection Action :list with
> params
> > > action=LIST&wt=json&_=1462389588125 and sendToOCPQueue=true
> > >
> > > 2016-05-04 19:20:53.861 INFO (qtp1989972246-19) [ ]
> > o.a.s.s.HttpSolrCall
> > > [admin] webapp=null path=/admin/collections
> > > params={action=LIST&wt=json&_=1462389588125} status=0 QTime=2
> > >
> > > 2016-05-04 19:20:57.520 INFO (qtp1989972246-13) [ ]
> > o.a.s.s.HttpSolrCall
> > > [admin] webapp=null path=/admin/cores
> > > params={indexInfo=false&wt=json&_=1462389588124} status=0 QTime=0
> > >
> > > 2016-05-04 19:20:57.546 INFO (qtp1989972246-15) [ ]
> > o.a.s.s.HttpSolrCall
> > > [admin] webapp=null path=/admin/info/system
> > > params={wt=json&_=1462389588126} status=0 QTime=25
> > >
> > > 2016-05-04 19:20:57.610 INFO (qtp1989972246-13) [ ]
> > > o.a.s.h.a.CollectionsHandler Invoked Collection Action :list with
> params
> > > action=LIST&wt=json&_=1462389588125 and sendToOCPQueue=true
> > >
> > > 2016-05-04 19:20:57.613 INFO (qtp1989972246-13) [ ]
> > o.a.s.s.HttpSolrCall
> > > [admin] webapp=null path=/admin/collections
> > > params={action=LIST&wt=json&_=1462389588125} status=0 QTime=3
> > >
> > > 2016-05-04 19:21:29.139 INFO (qtp1989972246-5980) [ ]
> > > o.a.h.i.c.DefaultHttpClient I/O exception (java.net.SocketException)
> > caught
> > > when connecting to {}->http://server2:8983: Too many open files
> > >
> > > 2016-05-04 19:21:29.139 INFO (qtp1989972246-5983) [ ]
> > > o.a.h.i.c.DefaultHttpClient I/O exception (java.net.SocketException)
> > caught
> > > when connecting to {}->http://server2:8983: Too many open files
> > >
> > > 2016-05-04 19:21:29.139 INFO (qtp1989972246-5984) [ ]
> > > o.a.h.i.c.DefaultHttpClient I/O exception (java.net.SocketException)
> > caught
> > > when connecting to {}->http://server2:8983: Too many open files
> > >
> > > 2016-05-04 19:21:29.141 INFO (qtp1989972246-5984) [ ]
> > > o.a.h.i.c.DefaultHttpClient Retrying connect to {}->
> http://server2:8983
> > >
> > > 2016-05-04 19:21:29.141 INFO (qtp1989972246-5984) [ ]
> > > o.a.h.i.c.DefaultHttpClient I/O exception (java.net.SocketException)
> > caught
> > > when connecting to {}->http://server2:8983: Too many open files
> > >
> > > 2016-05-04 19:21:29.142 INFO (qtp1989972246-5984) [ ]
> > > o.a.h.i.c.DefaultHttpClient Retrying connect to {}->
> http://server2:8983
> > >
> > > 2016-05-04 19:21:29.142 INFO (qtp1989972246-5984) [ ]
> > > o.a.h.i.c.DefaultHttpClient I/O exception (java.net.SocketException)
> > caught
> > > when connecting to {}->http://server2:8983: Too many open files
> > >
> > > 2016-05-04 19:21:29.142 INFO (qtp1989972246-5984) [ ]
> > > o.a.h.i.c.DefaultHttpClient Retrying connect to {}->
> http://server2:8983
> > >
> > > 2016-05-04 19:21:29.140 INFO (qtp1989972246-5983) [ ]
> > > o.a.h.i.c.DefaultHttpClient Retrying connect to {}->
> http://server2:8983
> > >
> > > 2016-05-04 19:21:29.140 INFO (qtp1989972246-5980) [ ]
> > > o.a.h.i.c.DefaultHttpClient Retrying connect to {}->
> http://server2:8983
> > >
> > > 2016-05-04 19:21:29.143 INFO (qtp1989972246-5983) [ ]
> > > o.a.h.i.c.DefaultHttpClient I/O exception (java.net.SocketException)
> > caught
> > > when connecting to {}->http://server2:8983: Too many open files
> > >
> > > 2016-05-04 19:21:29.144 INFO (qtp1989972246-5983) [ ]
> > > o.a.h.i.c.DefaultHttpClient Retrying connect to {}->
> http://server2:8983
> > >
> > > 2016-05-04 19:21:29.144 INFO (qtp1989972246-5980) [ ]
> > > o.a.h.i.c.DefaultHttpClient I/O exception (java.net.SocketException)
> > caught
> > > when connecting to {}->http://server2:8983: Too many open files
> > >
> > > 2016-05-04 19:21:29.144 INFO (qtp1989972246-5983) [ ]
> > > o.a.h.i.c.DefaultHttpClient I/O exception (java.net.SocketException)
> > caught
> > > when connecting to {}->http://server2:8983: Too many open files
> > >
> > > 2016-05-04 19:20:53.806 INFO (qtp1989972246-14) [ ]
> > o.a.s.s.HttpSolrCall
> > > [admin] webapp=null path=/admin/collections
> > > params={action=CLUSTERSTATUS&wt=json&_=1462389588125} status=0 QTime=25
> > >
> > > 2016-05-04 19:20:53.859 INFO (qtp1989972246-19) [ ]
> > > o.a.s.h.a.CollectionsHandler Invoked Collection Action :list with
> params
> > > action=LIST&wt=json&_=1462389588125 and sendToOCPQueue=true
> > >
> > > 2016-05-04 19:20:53.861 INFO (qtp1989972246-19) [ ]
> > o.a.s.s.HttpSolrCall
> > > [admin] webapp=null path=/admin/collections
> > > params={action=LIST&wt=json&_=1462389588125} status=0 QTime=2
> > >
> > > 2016-05-04 19:20:57.520 INFO (qtp1989972246-13) [ ]
> > o.a.s.s.HttpSolrCall
> > > [admin] webapp=null path=/admin/cores
> > > params={indexInfo=false&wt=json&_=1462389588124} status=0 QTime=0
> > >
> > > 2016-05-04 19:20:57.546 INFO (qtp1989972246-15) [ ]
> > o.a.s.s.HttpSolrCall
> > > [admin] webapp=null path=/admin/info/system
> > > params={wt=json&_=1462389588126} status=0 QTime=25
> > >
> > > 2016-05-04 19:20:57.610 INFO (qtp1989972246-13) [ ]
> > > o.a.s.h.a.CollectionsHandler Invoked Collection Action :list with
> params
> > > action=LIST&wt=json&_=1462389588125 and sendToOCPQueue=true
> > >
> > > 2016-05-04 19:20:57.613 INFO (qtp1989972246-13) [ ]
> > o.a.s.s.HttpSolrCall
> > > [admin] webapp=null path=/admin/collections
> > > params={action=LIST&wt=json&_=1462389588125} status=0 QTime=3
> > >
> > > 2016-05-04 19:21:29.139 INFO (qtp1989972246-5980) [ ]
> > > o.a.h.i.c.DefaultHttpClient I/O exception (java.net.SocketException)
> > caught
> > > when connecting to {}->http://server2:8983: Too many open files
> > >
> > > 2016-05-04 19:21:29.139 INFO (qtp1989972246-5983) [ ]
> > > o.a.h.i.c.DefaultHttpClient I/O exception (java.net.SocketException)
> > caught
> > > when connecting to {}->http://server2:8983: Too many open files
> > >
> > > 2016-05-04 19:21:29.139 INFO (qtp1989972246-5984) [ ]
> > > o.a.h.i.c.DefaultHttpClient I/O exception (java.net.SocketException)
> > caught
> > > when connecting to {}->http://server2:8983: Too many open files
> > >
> > > 2016-05-04 19:21:29.141 INFO (qtp1989972246-5984) [ ]
> > > o.a.h.i.c.DefaultHttpClient Retrying connect to {}->
> http://server2:8983
> > >
> > > 2016-05-04 19:21:29.141 INFO (qtp1989972246-5984) [ ]
> > > o.a.h.i.c.DefaultHttpClient I/O exception (java.net.SocketException)
> > caught
> > > when connecting to {}->http://server2:8983: Too many open files
> > >
> > > 2016-05-04 19:21:29.142 INFO (qtp1989972246-5984) [ ]
> > > o.a.h.i.c.DefaultHttpClient Retrying connect to {}->
> http://server2:8983
> > >
> > > 2016-05-04 19:21:29.142 INFO (qtp1989972246-5984) [ ]
> > > o.a.h.i.c.DefaultHttpClient I/O exception (java.net.SocketException)
> > caught
> > > when connecting to {}->http://server2:8983: Too many open files
> > >
> > > 2016-05-04 19:21:29.142 INFO (qtp1989972246-5984) [ ]
> > > o.a.h.i.c.DefaultHttpClient Retrying connect to {}->
> http://server2:8983
> > >
> > > 2016-05-04 19:21:29.140 INFO (qtp1989972246-5983) [ ]
> > > o.a.h.i.c.DefaultHttpClient Retrying connect to {}->
> http://server2:8983
> > >
> > > 2016-05-04 19:21:29.140 INFO (qtp1989972246-5980) [ ]
> > > o.a.h.i.c.DefaultHttpClient Retrying connect to {}->
> http://server2:8983
> > >
> > > 2016-05-04 19:21:29.143 INFO (qtp1989972246-5983) [ ]
> > > o.a.h.i.c.DefaultHttpClient I/O exception (java.net.SocketException)
> > caught
> > > when connecting to {}->http://server2:8983: Too many open files
> > >
> > > 2016-05-04 19:21:29.144 INFO (qtp1989972246-5983) [ ]
> > > o.a.h.i.c.DefaultHttpClient Retrying connect to {}->
> http://server2:8983
> > >
> > > 2016-05-04 19:21:29.144 INFO (qtp1989972246-5980) [ ]
> > > o.a.h.i.c.DefaultHttpClient I/O exception (java.net.SocketException)
> > caught
> > > when connecting to {}->http://server2:8983: Too many open files
> > >
> > > 2016-05-04 19:21:29.144 INFO (qtp1989972246-5983) [ ]
> > > o.a.h.i.c.DefaultHttpClient I/O exception (java.net.SocketException)
> > caught
> > > when connecting to {}->http://server2:8983: Too many open files
> > >
> > > 2016-05-04 19:21:29.145 INFO (qtp1989972246-5983) [ ]
> > > o.a.h.i.c.DefaultHttpClient Retrying connect to {}->
> http://server2:8983
> > >
> > > 2016-05-04 19:21:29.146 INFO (qtp1989972246-5985) [ ]
> > > o.a.h.i.c.DefaultHttpClient I/O exception (java.net.SocketException)
> > caught
> > > when connecting to {}->http://server2:8983: Too many open files
> > >
> > > …
> > >
> > > …
> > >
> > > 2016-05-04 19:21:29.150 INFO (qtp1989972246-5980) [ ]
> > > o.a.h.i.c.DefaultHttpClient Retrying connect to {}->
> http://server2:8983
> > >
> > > 2016-05-04 19:21:29.151 ERROR (qtp1989972246-5985) [ ]
> > > o.a.s.s.HttpSolrCall null:org.apache.solr.common.SolrException: Error
> > > trying to proxy request for url:
> > > http://server2:8983/solr/collection1/admin/luke
> > >
> > > at
> > > org.apache.solr.servlet.HttpSolrCall.remoteQuery(HttpSolrCall.java:588)
> > >
> > > at
> > org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:444)
> > >
> > > at
> > >
> > >
> >
> org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:229)
> > >
> > > at
> > >
> > >
> >
> org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:184)
> > >
> > > at
> > >
> > >
> >
> org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1668)
> > >
> > > at
> > >
> >
> org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:581)
> > >
> > > at
> > >
> > >
> >
> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
> > >
> > > at
> > >
> >
> org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)
> > >
> > > at
> > >
> > >
> >
> org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:226)
> > >
> > > at
> > >
> > >
> >
> org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1160)
> > >
> > >
> > >
> > >
> > >
> > > server2/solr.log
> > >
> > > ======
> > >
> > >
> > > 016-05-04 18:14:32.936 INFO (main) [ ] o.e.j.s.ServerConnector
> Started
> > > ServerConnector@4c22110e{HTTP/1.1,[http/1.1]}{0.0.0.0:8983}
> > >
> > > 2016-05-04 18:14:32.936 INFO (main) [ ] o.e.j.s.Server Started
> @3850ms
> > >
> > > 2016-05-04 19:20:20.243 INFO (qtp1989972246-18) [ ]
> > o.a.s.s.HttpSolrCall
> > > [admin] webapp=null path=/admin/cores
> > > params={indexInfo=false&wt=json&_=1462389620001} status=0 QTime=34
> > >
> > > 2016-05-04 19:20:20.254 INFO (qtp1989972246-15) [ ]
> > o.a.s.s.HttpSolrCall
> > > [admin] webapp=null path=/admin/zookeeper
> > > params={path=/live_nodes&wt=json&_=1462389620113} status=0 QTime=42
> > >
> > > 2016-05-04 19:20:20.264 INFO (qtp1989972246-20) [ ]
> > o.a.s.s.HttpSolrCall
> > > [admin] webapp=null path=/admin/info/system
> > > params={wt=json&_=1462389620002} status=0 QTime=50
> > >
> > > 2016-05-04 19:20:20.321 INFO (qtp1989972246-19) [ ]
> > o.a.s.s.HttpSolrCall
> > > [admin] webapp=null path=/admin/zookeeper
> > >
> > >
> >
> params={path=/clusterstate.json&view=graph&detail=true&wt=json&_=1462389620113}
> > > status=0 QTime=6
> > >
> > > 2016-05-04 19:20:20.360 INFO (qtp1989972246-21) [ ]
> > > o.a.s.h.a.CollectionsHandler Invoked Collection Action :list with
> params
> > > action=LIST&wt=json&_=1462389620002 and sendToOCPQueue=true
> > >
> > > 2016-05-04 19:20:20.362 INFO (qtp1989972246-21) [ ]
> > o.a.s.s.HttpSolrCall
> > > [admin] webapp=null path=/admin/collections
> > > params={action=LIST&wt=json&_=1462389620002} status=0 QTime=19
> > >
> > > 2016-05-04 19:34:35.760 WARN
> > > (qtp1989972246-16-acceptor-0@42e5f722-ServerConnector
> > > @4c22110e{HTTP/1.1,[http/1.1]}{0.0.0.0:8983}) [ ]
> > > o.e.j.s.ServerConnector
> > >
> > > java.io.IOException: Too many open files
> > >
> > > at sun.nio.ch.ServerSocketChannelImpl.accept0(Native Method)
> > >
> > > at
> > >
> >
> sun.nio.ch.ServerSocketChannelImpl.accept(ServerSocketChannelImpl.java:422)
> > >
> > > at
> > >
> >
> sun.nio.ch.ServerSocketChannelImpl.accept(ServerSocketChannelImpl.java:250)
> > >
> > > at
> > >
> org.eclipse.jetty.server.ServerConnector.accept(ServerConnector.java:382)
> > >
> > > at
> > >
> > >
> >
> org.eclipse.jetty.server.AbstractConnector$Acceptor.run(AbstractConnector.java:593)
> > >
> > > at
> > >
> > >
> >
> org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:654)
> > >
> > > at
> > >
> > >
> >
> org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:572)
> > >
> > > at java.lang.Thread.run(Thread.java:745)
> > >
> > > 2016-05-04 19:38:09.442 INFO (qtp1989972246-5289) [ ]
> > > o.a.s.s.HttpSolrCall [admin] webapp=null path=/admin/cores
> > > params={indexInfo=false&wt=json&_=1462389620001} status=0 QTime=0
> > >
> > > 2016-05-04 19:38:09.496 INFO (qtp1989972246-1224) [ ]
> > > o.a.s.s.HttpSolrCall [admin] webapp=null path=/admin/info/logging
> > > params={wt=json&_=1462390689357&since=0} status=0 QTime=4
> > >
> > > 2016-05-04 19:38:09.587 INFO (qtp1989972246-5765) [ ]
> > > o.a.s.s.HttpSolrCall [admin] webapp=null path=/admin/info/system
> > > params={wt=json&_=1462389620002} status=0 QTime=99
> > >
> > > 2016-05-04 19:38:09.656 INFO (qtp1989972246-4352) [ ]
> > > o.a.s.h.a.CollectionsHandler Invoked Collection Action :list with
> params
> > > action=LIST&wt=json&_=1462389620002 and sendToOCPQueue=true
> > >
> > > 2016-05-04 19:38:09.658 INFO (qtp1989972246-4352) [ ]
> > > o.a.s.s.HttpSolrCall [admin] webapp=null path=/admin/collections
> > > params={action=LIST&wt=json&_=1462389620002} status=0 QTime=2
> > >
> > > 2016-05-04 19:38:19.442 INFO (qtp1989972246-4324) [ ]
> > > o.a.s.s.HttpSolrCall [admin] webapp=null path=/admin/info/logging
> > > params={wt=json&_=1462390689357&since=0} status=0 QTime=0
> > >
> >
>
