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From Zheng Lin Edwin Yeo <edwinye...@gmail.com>
Subject Re: Error when using IndexMergeTool
Date Sat, 02 Sep 2017 16:08:05 GMT
Hi Erick,

Thanks for your reply.

However, I get this error when I tried to run the IndexMergeTool when Solr
is running. But the merge is successful when I stop Solr.
What could be the reason?

Merging...
Exception in thread "main"
org.apache.lucene.store.LockObtainFailedException: Lock held by another
program:
C:\solr\collection1_shard1_replica1\data\index.20170713083232277\write.lock
        at
org.apache.lucene.store.NativeFSLockFactory.obtainFSLock(NativeFSLock
Factory.java:118)
        at
org.apache.lucene.store.FSLockFactory.obtainLock(FSLockFactory.java:4
1)
        at
org.apache.lucene.store.BaseDirectory.obtainLock(BaseDirectory.java:4
5)
        at
org.apache.lucene.store.FilterDirectory.obtainLock(FilterDirectory.ja
va:104)
        at
org.apache.lucene.index.IndexWriter.acquireWriteLocks(IndexWriter.jav
a:2571)
        at
org.apache.lucene.index.IndexWriter.addIndexes(IndexWriter.java:2629)

        at
org.apache.lucene.misc.IndexMergeTool.main(IndexMergeTool.java:54)


Regards,
Edwin

On 1 September 2017 at 22:51, Erick Erickson <erickerickson@gmail.com>
wrote:

> You don't have to stop solr to run the merge index tool. I would,
> however, stop _indexing_ to that Solr instance.
>
> And you probably have to reload the core (or restart the collection)
> afterwards to pick up the merged documents.
>
> Best,
> Erick
>
> On Fri, Sep 1, 2017 at 6:46 AM, Zheng Lin Edwin Yeo
> <edwinyeozl@gmail.com> wrote:
> > Hi,
> >
> > Just to check, are we able to run the IndexMergeTool on the index that is
> > still running on Solr? Or do we have to stop Solr first before running
> the
> > IndexMergeTool?
> >
> > Regards,
> > Edwin
> >
> > On 26 August 2017 at 23:41, Zheng Lin Edwin Yeo <edwinyeozl@gmail.com>
> > wrote:
> >
> >> Thanks for pointing out the mistake. The script can run after I correct
> >> the ":" to ";".
> >>
> >> However, I am getting the following error now.
> >>
> >> Merging...
> >> Exception in thread "main" org.apache.lucene.index.
> IndexNotFoundException:
> >> no se
> >> gments* file found in HardlinkCopyDirectoryWrapper(MMapDirectory@C
> :\solr\
> >> collection1_shard1_replica1\data\in
> >> dex lockFactory=org.apache.lucene.store.NativeFSLockFactory@1ff8b8f):
> >> files: [wr
> >> ite.lock]
> >>         at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.
> >> run(SegmentInfo
> >> s.java:687)
> >>         at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.
> >> run(SegmentInfo
> >> s.java:644)
> >>         at org.apache.lucene.index.SegmentInfos.readLatestCommit(
> >> SegmentInfos.ja
> >> va:450)
> >>         at org.apache.lucene.index.IndexWriter.addIndexes(
> >> IndexWriter.java:2653)
> >>
> >>         at org.apache.lucene.misc.IndexMergeTool.main(
> >> IndexMergeTool.java:54)
> >>
> >>
> >> This was done after I have stop Solr. What could be the issue here?
> >>
> >> Regards,
> >> Edwin
> >>
> >> On 26 August 2017 at 08:42, Leonardo Perez Pulido <
> >> leoperezpulido@gmail.com> wrote:
> >>
> >>> Hi,
> >>> Isn't the Windows classpath separator a semi-colon? Like this:
> >>> cene-core-6.5.1.jar"*;*"C:solr/serve
> >>> Just saying.
> >>> Regards.
> >>>
> >>> On Fri, Aug 25, 2017 at 8:33 PM, Zheng Lin Edwin Yeo <
> >>> edwinyeozl@gmail.com>
> >>> wrote:
> >>>
> >>> > Hi Erick,
> >>> >
> >>> > Thanks for your reply.
> >>> > I have check, it was not due to the typo. The same error occurs even
> >>> with
> >>> > the slash.
> >>> >
> >>> > Regards,
> >>> > Edwin
> >>> >
> >>> > On 26 August 2017 at 05:16, Erick Erickson <erickerickson@gmail.com>
> >>> > wrote:
> >>> >
> >>> > > You classpath is not correct. Unless it's a typo,
> >>> > > :"C:solr/server/solr-webapp/webapp/WEB-INF/lib/lucene-
> misc-6.5.1.jar"
> >>> > > is wrong, it should be:
> >>> > > "C:/solr/server/solr-webapp/webapp/WEB-INF/lib/lucene-misc-
> >>> 6.5.1.jar",
> >>> > > note the slash before "solr".
> >>> > >
> >>> > > If that's not just a typo you need to look further as to why the
> >>> > > classpath isn't being specified correctly.
> >>> > >
> >>> > > Best,
> >>> > > Erick
> >>> > >
> >>> > > On Thu, Aug 24, 2017 at 7:52 PM, Zheng Lin Edwin Yeo
> >>> > > <edwinyeozl@gmail.com> wrote:
> >>> > > > Hi,
> >>> > > >
> >>> > > > I am trying to use the IndexMergeTool to merge two indexes
that
> are
> >>> > > indexed
> >>> > > > in different collections into one. Both collections have
the same
> >>> > fields,
> >>> > > > and are using Parent-Child Block-Join.
> >>> > > >
> >>> > > > When I tried to run the following command as stated from
the Solr
> >>> Wiki
> >>> > > > https://cwiki.apache.org/confluence/display/solr/Merging+Indexes
> >>> > > >
> >>> > > > java -cp
> >>> > > > "C:/solr/server/solr-webapp/webapp/WEB-INF/lib/lucene-
> >>> > > core-6.5.1.jar":"C:solr/server/solr-webapp/webapp/WEB-
> >>> > > INF/lib/lucene-misc-6.5.1.jar"
> >>> > > > org/apache/lucene/misc/IndexMergeTool
> >>> > > > C:/solr/collectionMerge_shard1_replica1/data/index
> >>> > > > C:/solr/collection1_shard1_replica1/data/index
> >>> > > > C:/solr/collection2_shard1_replica1/data/index
> >>> > > >
> >>> > > > I get the following error:
> >>> > > > Error: Could not find or load main class
> >>> > > > org.apache.lucene.misc.IndexMergeTool
> >>> > > >
> >>> > > > What could be causing the error?
> >>> > > >
> >>> > > > This is done on Solr 6.5.1
> >>> > > >
> >>> > > > Regards,
> >>> > > > Edwin
> >>> > >
> >>> >
> >>>
> >>
> >>
>

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