Solr 4.3 and above core swap

[richardg <ri...@dvdempire.com>]

Since upgrading to solr 4.3 we get the following errors on our slaves when we
swap cores on our master and is still an issue on 4.4:

Solr index directory
'/usr/local/solr_aggregate/solr_aggregate/data/index.20130513152644966' is
locked.  Throwing exception

SEVERE: Unable to reload core: production
org.apache.solr.common.SolrException: Index locked for write for core
production

SEVERE: Could not reload core 
org.apache.solr.common.SolrException: Unable to reload core: production

On older solr versions it would create a new index.* directory and use it,
it hasn't been the case w/ 4.3+.  The new core seems to replicate fine and
the new index files are in the original index.* directory so I'm not sure
what is happening.




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Re: Solr 4.3 and above core swap

[richardg <ri...@dvdempire.com>]

 <directoryFactory name="DirectoryFactory" 
                   
class="${solr.directoryFactory:solr.NRTCachingDirectoryFactory}"/> 

I commented out the lockType, so it should be using the default of native
according to the documentation.  

There is nothing special about our file systems.

Thanks



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Re: Solr 4.3 and above core swap

[Shawn Heisey <so...@elyograg.org>]

On 8/16/2013 10:14 AM, richardg wrote:
> Thanks for the reply, no nothing else would be writing to the index, I'm sure
> it is a solrconfig setting but not sure which.

Are you specifying the DirectoryFactory and/or lock type in your 
solrconfig.xml, and if so, what are they set to?  Is your index on a 
network filesystem, or an unusual filesystem type?

Thanks,
Shawn

Re: Solr 4.3 and above core swap

[richardg <ri...@dvdempire.com>]

Thanks for the reply, no nothing else would be writing to the index, I'm sure
it is a solrconfig setting but not sure which.



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Re: Solr 4.3 and above core swap

["tamanjit.bindra@yahoo.co.in" <ta...@yahoo.co.in>]

Is any other source trying to write into your index when you try to reload
it? If this was so, then I guess it would have locked up the index. Check
for a write.lock file in your index directory. You can remove that file
manually and then retry it.



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