[ 
https://issues.apache.org/jira/browse/SOLR-207?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12488468
 ] 

Bertrand Delacretaz commented on SOLR-207:
------------------------------------------

I think find -maxdepth is not supported on Solaris. And the -t option in my 
previous example was obviously wrong.

I'm not sure if ls -r sorts by filename everywhere (but I have no evidence that 
it does not).

The most portable version might be

  ls ${data_dir} | grep snapshot\\. | grep -v wip | sort -r | head -1 

> snappuller inefficient finding latest snapshot
> ----------------------------------------------
>
>                 Key: SOLR-207
>                 URL: https://issues.apache.org/jira/browse/SOLR-207
>             Project: Solr
>          Issue Type: Bug
>          Components: replication
>            Reporter: Yonik Seeley
>         Attachments: find_maxdepth.patch
>
>
> snapinstaller (and snappuller) do the following to find the latest snapshot:
> name=`find ${data_dir} -name snapshot.* -print|grep -v wip|sort -r|head -1`
> This recurses into all of the snapshot directories, doing much more disk-io 
> than is necessary.
> I think it is the cause of bloated kernel memory usage we have seen on some 
> of our Linux boxes, caused
> by kernel dentry and inode caches.   Those caches compete with buffer cache 
> (caching the actual data of the index)
> and can thus decrease performance.

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.

Reply via email to