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Anonymous12345
Asked: 2010-12-08 07:01:27 +0800 CST

Suddenly my VPS server is being flooded?

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I have nowhere else to ask, I just noticed that my server isn't responding, or it takes a lot of time. I have a classifieds website which uses mysql and php.

I use PUTTY and wrote top to see whats bothering the server. There is something EATING up CPU, and it is some java application. No idea what it is. Anybody know what I should do? Please guide me?

Have I been hacked?

EDIT: I just restarted the server from a control-panel my VPS provider offers, now the numbers are ok... What could it been?

Thanks

UPDATE.

I use SOLR, and that is the only Java because it uses Jetty as a container.

Could this be that a call was made and not cancelled and hence it caused a loop somehow. Anybody who used solr experienced this?

linux apache-2.2 security

1 Answers

  1. Is might be caused by solr

    possible causes

    1. too many write to the collection causing lots of fragmented files
    2. solr query not optimized

    for cause 1 : optimize that collection will help

    cause 2 : review your query (what else?)

    for this problem, you don't have to restart your server,
    restart jetty and apache should be sufficient

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