Is the high usage just suddenly happening after a long period of up-time without it, or is this on a server restart? The latter can happen if you have a large commit log to replay because you haven't done hard commits.

-- Jack Krupansky

-----Original Message----- From: Shawn Heisey
Sent: Wednesday, August 27, 2014 9:51 AM
To: solr-user@lucene.apache.org
Subject: Re: Solr CPU Usage

On 8/27/2014 4:16 AM, hendra_budiawan wrote:
I'm having high cpu usage on my server, detailed on picture below
<http://lucene.472066.n3.nabble.com/file/n4155370/htop-server.png>

Using default config for solrconfig.xml & schema.xml, can anyone help me to
identified why the cpu so high on solr process?

A standard "top" screenshot would be a lot more useful than htop -- it
includes information about memory sizes and utilization.

The most common reason for performance issues is not enough RAM, either
heap or OS disk cache, maybe both.  Let's start with a standard "top"
screenshot, then additional questions may be required from there.  Some
light reading in the meantime:

http://wiki.apache.org/solr/SolrPerformanceProblems

Thanks,
Shawn

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