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From "Richard Coggins (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-8587) Add segments file information to core admin status
Date Sun, 06 Mar 2016 12:59:40 GMT

    [ https://issues.apache.org/jira/browse/SOLR-8587?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15182144#comment-15182144
] 

Richard Coggins commented on SOLR-8587:
---------------------------------------


Same as previous comment, I just upgraded Solr to 5.5 and noticed that /solr/admin/cores API
stopped working with the following exception:

3/6/2016, 7:36:57 AM ERROR null RequestHandlerBase java.nio.file.NoSuchFileException: /solr/solr-data/data/expiredDomains/data/index/segments_fknc
3/6/2016, 7:36:57 AM ERROR null HttpSolrCall null:java.nio.file.NoSuchFileException: /solr/solr-data/data/expiredDomains/data/index/segments_fknc
3/6/2016, 7:37:02 AM ERROR null RequestHandlerBase java.nio.file.NoSuchFileException: /solr/solr-data/data/expiredDomains/data/index/segments_fknc
3/6/2016, 7:37:02 AM ERROR null HttpSolrCall null:java.nio.file.NoSuchFileException: /solr/solr-data/data/expiredDomains/data/index/segments_fknc

java.nio.file.NoSuchFileException: /solr/solr-data/data/expiredDomains/data/index/segments_fknc
	at sun.nio.fs.UnixException.translateToIOException(UnixException.java:86)
	at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:102)
	at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:107)
	at sun.nio.fs.UnixFileAttributeViews$Basic.readAttributes(UnixFileAttributeViews.java:55)
	at sun.nio.fs.UnixFileSystemProvider.readAttributes(UnixFileSystemProvider.java:144)
	at sun.nio.fs.LinuxFileSystemProvider.readAttributes(LinuxFileSystemProvider.java:99)
	at java.nio.file.Files.readAttributes(Files.java:1737)
	at java.nio.file.Files.size(Files.java:2332)
	at org.apache.lucene.store.FSDirectory.fileLength(FSDirectory.java:210)
	at org.apache.lucene.store.NRTCachingDirectory.fileLength(NRTCachingDirectory.java:127)
	at org.apache.solr.handler.admin.LukeRequestHandler.getIndexInfo(LukeRequestHandler.java:592)
	at org.apache.solr.handler.admin.LukeRequestHandler.handleRequestBody(LukeRequestHandler.java:137)
	at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:155)
	at org.apache.solr.core.SolrCore.execute(SolrCore.java:2082)
	at org.apache.solr.servlet.HttpSolrCall.execute(HttpSolrCall.java:670)
	at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:458)
	at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:225)
	at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:183)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:585)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:577)
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223)
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
	at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:215)
	at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:110)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
	at org.eclipse.jetty.server.Server.handle(Server.java:499)
	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:310)
	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257)
	at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540)
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)
	at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)
	at java.lang.Thread.run(Thread.java:745)

null:java.nio.file.NoSuchFileException: /solr/solr-data/data/expiredDomains/data/index/segments_fknc
	at sun.nio.fs.UnixException.translateToIOException(UnixException.java:86)
	at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:102)
	at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:107)
	at sun.nio.fs.UnixFileAttributeViews$Basic.readAttributes(UnixFileAttributeViews.java:55)
	at sun.nio.fs.UnixFileSystemProvider.readAttributes(UnixFileSystemProvider.java:144)
	at sun.nio.fs.LinuxFileSystemProvider.readAttributes(LinuxFileSystemProvider.java:99)
	at java.nio.file.Files.readAttributes(Files.java:1737)
	at java.nio.file.Files.size(Files.java:2332)
	at org.apache.lucene.store.FSDirectory.fileLength(FSDirectory.java:210)
	at org.apache.lucene.store.NRTCachingDirectory.fileLength(NRTCachingDirectory.java:127)
	at org.apache.solr.handler.admin.LukeRequestHandler.getIndexInfo(LukeRequestHandler.java:592)
	at org.apache.solr.handler.admin.LukeRequestHandler.handleRequestBody(LukeRequestHandler.java:137)
	at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:155)
	at org.apache.solr.core.SolrCore.execute(SolrCore.java:2082)
	at org.apache.solr.servlet.HttpSolrCall.execute(HttpSolrCall.java:670)
	at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:458)
	at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:225)
	at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:183)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:585)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:577)
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223)
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
	at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:215)
	at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:110)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
	at org.eclipse.jetty.server.Server.handle(Server.java:499)
	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:310)
	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257)
	at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540)
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)
	at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)
	at java.lang.Thread.run(Thread.java:745)

java.nio.file.NoSuchFileException: /solr/solr-data/data/expiredDomains/data/index/segments_fknc
	at sun.nio.fs.UnixException.translateToIOException(UnixException.java:86)
	at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:102)
	at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:107)
	at sun.nio.fs.UnixFileAttributeViews$Basic.readAttributes(UnixFileAttributeViews.java:55)
	at sun.nio.fs.UnixFileSystemProvider.readAttributes(UnixFileSystemProvider.java:144)
	at sun.nio.fs.LinuxFileSystemProvider.readAttributes(LinuxFileSystemProvider.java:99)
	at java.nio.file.Files.readAttributes(Files.java:1737)
	at java.nio.file.Files.size(Files.java:2332)
	at org.apache.lucene.store.FSDirectory.fileLength(FSDirectory.java:210)
	at org.apache.lucene.store.NRTCachingDirectory.fileLength(NRTCachingDirectory.java:127)
	at org.apache.solr.handler.admin.LukeRequestHandler.getIndexInfo(LukeRequestHandler.java:592)
	at org.apache.solr.handler.admin.LukeRequestHandler.handleRequestBody(LukeRequestHandler.java:137)
	at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:155)
	at org.apache.solr.core.SolrCore.execute(SolrCore.java:2082)
	at org.apache.solr.servlet.HttpSolrCall.execute(HttpSolrCall.java:670)
	at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:458)
	at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:225)
	at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:183)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:585)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:577)
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223)
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
	at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:215)
	at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:110)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
	at org.eclipse.jetty.server.Server.handle(Server.java:499)
	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:310)
	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257)
	at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540)
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)
	at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)
	at java.lang.Thread.run(Thread.java:745)

null:java.nio.file.NoSuchFileException: /solr/solr-data/data/expiredDomains/data/index/segments_fknc
	at sun.nio.fs.UnixException.translateToIOException(UnixException.java:86)
	at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:102)
	at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:107)
	at sun.nio.fs.UnixFileAttributeViews$Basic.readAttributes(UnixFileAttributeViews.java:55)
	at sun.nio.fs.UnixFileSystemProvider.readAttributes(UnixFileSystemProvider.java:144)
	at sun.nio.fs.LinuxFileSystemProvider.readAttributes(LinuxFileSystemProvider.java:99)
	at java.nio.file.Files.readAttributes(Files.java:1737)
	at java.nio.file.Files.size(Files.java:2332)
	at org.apache.lucene.store.FSDirectory.fileLength(FSDirectory.java:210)
	at org.apache.lucene.store.NRTCachingDirectory.fileLength(NRTCachingDirectory.java:127)
	at org.apache.solr.handler.admin.LukeRequestHandler.getIndexInfo(LukeRequestHandler.java:592)
	at org.apache.solr.handler.admin.LukeRequestHandler.handleRequestBody(LukeRequestHandler.java:137)
	at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:155)
	at org.apache.solr.core.SolrCore.execute(SolrCore.java:2082)
	at org.apache.solr.servlet.HttpSolrCall.execute(HttpSolrCall.java:670)
	at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:458)
	at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:225)
	at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:183)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:585)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:577)
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223)
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
	at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:215)
	at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:110)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
	at org.eclipse.jetty.server.Server.handle(Server.java:499)
	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:310)
	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257)
	at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540)
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)
	at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)
	at java.lang.Thread.run(Thread.java:745)

> Add segments file information to core admin status
> --------------------------------------------------
>
>                 Key: SOLR-8587
>                 URL: https://issues.apache.org/jira/browse/SOLR-8587
>             Project: Solr
>          Issue Type: Improvement
>            Reporter: Shai Erera
>            Assignee: Shai Erera
>             Fix For: 5.5, master
>
>         Attachments: SOLR-8587.patch, SOLR-8587.patch
>
>
> Having the index's segments file name returned by CoreAdminHandler STATUS can be useful.
The info I'm thinking about is the segments file name and its size. If you record that from
time to time, in a case of crisis, when u need to restore the index and may not be sure which
copy you need to restore, this tiny piece of info can be very useful, as the segmentsN file
records the commit point, and therefore what you core reported and what you see at hand can
help you make a safer decision.
> I also think it's useful info in general, e.g. probably even more than 'version', and
it doesn't add much complexity to the handler or the response.



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