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https://issues.apache.org/jira/browse/SOLR-3685?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13423801#comment-13423801
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Markus Jelsma commented on SOLR-3685:
-------------------------------------
Hi - i don't look at virtual memory but RESident memory. My Solr install here
will eat up to 512MB RESIDENT MEMORY and is killed by the OS. The virtual
memory will then be almost 800MB, while both indexes are just 27MB in size.
This sounds a lot of VIRT and RES for a tiny index and tiny heap.
Also, Solr will run fine and fast with just 100MB of memory, the index is still
very small.
Thanks
> solrcloud crashes on startup due to excessive memory consumption
> ----------------------------------------------------------------
>
> Key: SOLR-3685
> URL: https://issues.apache.org/jira/browse/SOLR-3685
> Project: Solr
> Issue Type: Bug
> Components: replication (java), SolrCloud
> Affects Versions: 4.0-ALPHA
> Environment: Debian GNU/Linux Squeeze 64bit
> Solr 5.0-SNAPSHOT 1365667M - markus - 2012-07-25 19:09:43
> Reporter: Markus Jelsma
> Priority: Critical
> Fix For: 4.1
>
> Attachments: info.log
>
>
> There's a serious problem with restarting nodes, not cleaning old or unused
> index directories and sudden replication and Java being killed by the OS due
> to excessive memory allocation. Since SOLR-1781 was fixed index directories
> get cleaned up when a node is being restarted cleanly, however, old or unused
> index directories still pile up if Solr crashes or is being killed by the OS,
> happening here.
> We have a six-node 64-bit Linux test cluster with each node having two
> shards. There's 512MB RAM available and no swap. Each index is roughly 27MB
> so about 50MB per node, this fits easily and works fine. However, if a node
> is being restarted, Solr will consistently crash because it immediately eats
> up all RAM. If swap is enabled Solr will eat an additional few 100MB's right
> after start up.
> This cannot be solved by restarting Solr, it will just crash again and leave
> index directories in place until the disk is full. The only way i can restart
> a node safely is to delete the index directories and have it replicate from
> another node. If i then restart the node it will crash almost consistently.
> I'll attach a log of one of the nodes.
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