[jira] [Created] (OAK-10055) Auto refreshing IndexTracker every hour causes online reindexing to fail

["Thomas Mueller (Jira)" <ji...@apache.org>]

Thomas Mueller created OAK-10055:
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             Summary: Auto refreshing IndexTracker every hour causes online reindexing to fail
                 Key: OAK-10055
                 URL: https://issues.apache.org/jira/browse/OAK-10055
             Project: Jackrabbit Oak
          Issue Type: Improvement
    Affects Versions: 1.22.9
            Reporter: Thomas Mueller
            Assignee: Thomas Mueller


Auto refreshing the index tracker every one hour https://github.com/apache/jackrabbit-oak/commit/37a6d47b27cd7393812fa34c23b5dc68170daef3 , which was done to fix potential SNFE issue seems to be causing online reindexing for those indexes that take more than an hour to reindex to fail.

In addition to reindexing, it looks like there is another scenario whenever a default 1h auto-refreshing IndexTracker results in an error, even thought it doesn't seem to be as severe:

{noformat}
Caused by: java.io.FileNotFoundException: _b.dvd
	at org.apache.lucene.store.FSDirectory.fileLength(FSDirectory.java:261)
	at org.apache.lucene.store.NRTCachingDirectory.fileLength(NRTCachingDirectory.java:178)
	at org.apache.jackrabbit.oak.plugins.index.lucene.directory.DirectoryUtils.dirSize(DirectoryUtils.java:61)
	at org.apache.jackrabbit.oak.plugins.index.lucene.hybrid.NRTIndex$NRTReader.getIndexSize(NRTIndex.java:382)
	at org.apache.jackrabbit.oak.plugins.index.lucene.LuceneIndexMBeanImpl.getIndexSize(LuceneIndexMBeanImpl.java:840)
	at org.apache.jackrabbit.oak.plugins.index.lucene.LuceneIndexMBeanImpl.access$400(LuceneIndexMBeanImpl.java:98)
	at org.apache.jackrabbit.oak.plugins.index.lucene.LuceneIndexMBeanImpl$IndexStats.<init>(LuceneIndexMBeanImpl.java:746)
	at org.apache.jackrabbit.oak.plugins.index.lucene.LuceneIndexMBeanImpl.getIndexStats(LuceneIndexMBeanImpl.java:131)
	at sun.reflect.GeneratedMethodAccessor522.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at sun.reflect.misc.Trampoline.invoke(MethodUtil.java:71)
	at sun.reflect.GeneratedMethodAccessor22.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at sun.reflect.misc.MethodUtil.invoke(MethodUtil.java:275)
	at com.sun.jmx.mbeanserver.StandardMBeanIntrospector.invokeM2(StandardMBeanIntrospector.java:112)
	at com.sun.jmx.mbeanserver.StandardMBeanIntrospector.invokeM2(StandardMBeanIntrospector.java:46)
	at com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:237)
	... 13 common frames omitted 
{noformat}





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