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Date: Wed, 7 Mar 2007 21:46:24 -0800 (PST)
From: "Michael Neale (JIRA)" <jira@apache.org>
To: dev@jackrabbit.apache.org
Subject: [jira] Created: (JCR-778) Error on query initialization -
 intermittent
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Error on query initialization - intermittent
--------------------------------------------

                 Key: JCR-778
                 URL: https://issues.apache.org/jira/browse/JCR-778
             Project: Jackrabbit
          Issue Type: Bug
          Components: indexing
    Affects Versions: 1.2.2, 1.1
         Environment: Linux Fedora Core 5, ext2 filesystem, Java 1.5 (Sun)
            Reporter: Michael Neale


About 1 in ten times, I get the error as shown in the stack trace below. This happens when I run test, or when I start the app. The only way to resolve (when testing) seems to be to blow away the repository. 

It always happens at the point the query manager is accessed (triggering the query subsystem to start up). It DOES NOT cause an exception to be thrown back to the caller, I just noticed it in the logs. Basically the queries return NO data at all (and show up as test failures of course). 

In each case when I startup the system/test, if the repository exists I use it, and (for tests) clean it by deleting the root node of the user content, and then starting again, otherwise there is nothing that exciting.

Please let me know if more info is needed.


ERROR 05-03 15:54:39,386 (LazyQueryResultImpl.java:getResults:266)  -Exception while executing query:
java.io.IOException : No such file or directory
    at java.io.UnixFileSystem.createFileExclusively(Native Method)
    at java.io.File.createNewFile(File.java:850)
    at org.apache.jackrabbit.core.query.lucene.FSDirectory$1.obtain( FSDirectory.java:119)
    at org.apache.lucene.store.Lock.obtain(Lock.java:51)
    at org.apache.lucene.store.Lock$With.run(Lock.java:98)
    at org.apache.lucene.index.IndexReader.open(IndexReader.java:141)
    at org.apache.lucene.index.IndexReader.open(IndexReader.java:136)
    at org.apache.jackrabbit.core.query.lucene.AbstractIndex.getReadOnlyIndexReader(AbstractIndex.java:191)
    at org.apache.jackrabbit.core.query.lucene.MultiIndex.getIndexReader (MultiIndex.java:616)
    at org.apache.jackrabbit.core.query.lucene.SearchIndex.executeQuery(SearchIndex.java:384)
    at org.apache.jackrabbit.core.query.lucene.LazyQueryResultImpl.executeQuery(LazyQueryResultImpl.java :204)
    at org.apache.jackrabbit.core.query.lucene.LazyQueryResultImpl.getResults(LazyQueryResultImpl.java:244)
    at org.apache.jackrabbit.core.query.lucene.LazyQueryResultImpl.<init>(LazyQueryResultImpl.java :161)
    at org.apache.jackrabbit.core.query.lucene.QueryImpl.execute(QueryImpl.java:164)
    at org.apache.jackrabbit.core.query.QueryImpl.execute(QueryImpl.java:142)

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