Re: DIH ConcurrentModificationException

Reuben A Christie Mon, 27 Sep 2010 18:59:00 -0700

is this fixed in solr-1.4.1 ?
I have seen ConcurrentModificationException during search operation using EmbeddedSolrServer, when tested using jmeter with on more than one Concurrent users.

best,
Reuben

On 5/5/2009 2:25 AM, Shalin Shekhar Mangar wrote:

This is fixed in trunk.

2009/5/5 Noble Paul നോബിള്‍ नोब्ळ् <noble.p...@corp.aol.com>

hi Walter,
it needs synchronization. I shall open a bug.



On Mon, May 4, 2009 at 7:31 PM, Walter Ferrara <walters...@gmail.com>
wrote:

I've got a ConcurrentModificationException during a cron-ed delta import

of

DIH, I'm using multicore solr nightly from hudson 2009-04-02_08-06-47.
I don't know if this stacktrace maybe useful to you, but here it is:

java.util.ConcurrentModificationException
       at java.util.LinkedHashMap$LinkedHashIterator.nextEntry(Unknown
Source)
       at java.util.LinkedHashMap$EntryIterator.next(Unknown Source)
       at java.util.LinkedHashMap$EntryIterator.next(Unknown Source)
       at

org.apache.solr.handler.dataimport.DataImporter.getStatusMessages(DataImporter.java:384)

at

org.apache.solr.handler.dataimport.DataImportHandler.handleRequestBody(DataImportHandler.java:210

)
       at

org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:131)

       at org.apache.solr.core.SolrCore.execute(SolrCore.java:1333)
       at

org.apache.solr.servlet.SolrDispatchFilter.execute(SolrDispatchFilter.java:303)

at

org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:232)

at

org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1089)

       at
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:365)
       at

org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)

       at
org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
       at
org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:712)
       at
org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)
       at

org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:211)

at

org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)

       at
org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139)
       at org.mortbay.jetty.Server.handle(Server.java:285)
       at
org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:502)
       at

org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:821)

       at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:513)
       at

org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:208)

at

org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:378)

at

org.mortbay.jetty.bio.SocketConnector$Connection.run(SocketConnector.java:226)

at

org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:442)

of-course due to the nature of this exception I doubt it can be

reproduced

easily (this is the only one I've got, and the croned job runned a lot of
times), but maybe should a synchronized be put somewhere?
ciao,
Walter



--
-----------------------------------------------------
Noble Paul | Principal Engineer| AOL | http://aol.com

Re: DIH ConcurrentModificationException

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