[ 
https://issues.apache.org/jira/browse/SOLR-9120?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Hoss Man updated SOLR-9120:
---------------------------
    Attachment: SOLR-9120.patch


Here's some trivial steps to reproduce the WARN message...

{noformat}
$ bin/solr -e techproducts
...
$ tail -f example/techproducts/logs/solr.log
...

{noformat}

In another terminal...

{noformat}
$ curl -H 'Content-Type: application/json' 
'http://localhost:8983/solr/techproducts/update?commit=true&openSearcher=false' 
--data-binary '[{"id":"HOSS"}]'
...
$ curl 'http://localhost:8983/solr/techproducts/admin/luke'
...
{noformat}

When the "/admin/luke" URL is hit, this will show up in the logs -- but the 
luke request will finish correctly...

{noformat}
WARN  - 2017-11-08 17:23:44.574; [   x:techproducts] 
org.apache.solr.handler.admin.LukeRequestHandler; Error getting file length for 
[segments_2]
java.nio.file.NoSuchFileException: 
/home/hossman/lucene/dev/solr/example/techproducts/solr/techproducts/data/index/segments_2
        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:243)
        at 
org.apache.lucene.store.NRTCachingDirectory.fileLength(NRTCachingDirectory.java:128)
        at 
org.apache.solr.handler.admin.LukeRequestHandler.getFileLength(LukeRequestHandler.java:611)
        at 
org.apache.solr.handler.admin.LukeRequestHandler.getIndexInfo(LukeRequestHandler.java:584)
        at 
org.apache.solr.handler.admin.LukeRequestHandler.handleRequestBody(LukeRequestHandler.java:136)
        at 
org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:177)
...
INFO  - 2017-11-08 17:23:44.587; [   x:techproducts] 
org.apache.solr.core.SolrCore; [techproducts]  webapp=/solr path=/admin/luke 
params={} status=0 QTime=15
{noformat}


Any subsequent hits to the "/admin/luke" request handler -- which can also 
happen automatically & asynchronously in the backgrond if you have 
"http://localhost:8983/solr/#/techproducts"; (or some of it's sub-pages) loaded 
in your browser -- will also produce that same log message, unless until a 
commit that opens a new searcher.

----


With the attached patch, and solr's default logging levels, the same steps 
produce no messages from LukeRequestHandler.

any concerns?

> o.a.s.h.a.LukeRequestHandler Error getting file length for [segments_NNN] -- 
> NoSuchFileException
> ------------------------------------------------------------------------------------------------
>
>                 Key: SOLR-9120
>                 URL: https://issues.apache.org/jira/browse/SOLR-9120
>             Project: Solr
>          Issue Type: Bug
>    Affects Versions: 6.0
>            Reporter: Markus Jelsma
>         Attachments: SOLR-9120.patch, SOLR-9120.patch, SOLR-9120.patch
>
>
> On Solr 6.0, we frequently see the following errors popping up:
> {code}
> java.nio.file.NoSuchFileException: 
> /var/lib/solr/logs_shard2_replica1/data/index/segments_2c5
>       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$Basic.readAttributes(UnixFileAttributeViews.java:55)
>       at 
> sun.nio.fs.UnixFileSystemProvider.readAttributes(UnixFileSystemProvider.java:144)
>       at 
> sun.nio.fs.LinuxFileSystemProvider.readAttributes(LinuxFileSystemProvider.java:99)
>       at java.nio.file.Files.readAttributes(Files.java:1737)
>       at java.nio.file.Files.size(Files.java:2332)
>       at org.apache.lucene.store.FSDirectory.fileLength(FSDirectory.java:243)
>       at 
> org.apache.lucene.store.NRTCachingDirectory.fileLength(NRTCachingDirectory.java:131)
>       at 
> org.apache.solr.handler.admin.LukeRequestHandler.getFileLength(LukeRequestHandler.java:597)
>       at 
> org.apache.solr.handler.admin.LukeRequestHandler.getIndexInfo(LukeRequestHandler.java:585)
>       at 
> org.apache.solr.handler.admin.LukeRequestHandler.handleRequestBody(LukeRequestHandler.java:137)
>       at 
> org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:155)
>       at org.apache.solr.core.SolrCore.execute(SolrCore.java:2033)
>       at org.apache.solr.servlet.HttpSolrCall.execute(HttpSolrCall.java:652)
>       at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:460)
>       at 
> org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:229)
>       at 
> org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:184)
>       at 
> org.eclipse.jetty.servlet.ServletHandler$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)
>       at 
> org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:511)
>       at 
> org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
>       at 
> org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1092)
>       at 
> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
>       at 
> org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:213)
>       at 
> org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:119)
>       at 
> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134)
>       at org.eclipse.jetty.server.Server.handle(Server.java:518)
>       at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:308)
>       at 
> org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:244)
>       at 
> org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:273)
>       at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:95)
>       at 
> org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93)
>       at 
> org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceAndRun(ExecuteProduceConsume.java:246)
>       at 
> org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:156)
>       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)
> {code}



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