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Subject: Re: solr-cloud performance decrease day by day
From: qibaoyuan <qibaoyuan@gmail.com>
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 <CABGq8w8+GmiEHkfj+_X0VNXWxGJF3U20UYzMY4qNg8Cb0nOxCg@mail.gmail.com>
Date: Fri, 19 Apr 2013 16:32:32 +0800
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To: solr-user@lucene.apache.org

Thanks manu,i will check it.
=D4=DA 2013-4-19=A3=AC=CF=C2=CE=E74:26=A3=ACManuel Le Normand =
<manuel.lenormand@gmail.com> =D0=B4=B5=C0=A3=BA

> Can happen for various reasons.
>=20
> Can you recreate the situation, meaning restarting the servlet or =
server
> would start with good qTime and decrease from that point? How fast =
does
> this happen?
>=20
> Start by monitoring the jvm process, with oracle visualVM for example.
> Monitor for frequent garbage collections or unreasonable memory peacks =
or
> opening threads.
> Then monitor your system to see if there's an io disk latency or disk =
usage
> that increases in time, the writing queue to disk exploads, cpu load
> becomes heavier or network usage's exeeds limit.
>=20
> If you can recreate the decrease and monitor well, one of the above =
params
> should pop up. Fixing it after defining the problem will be easier.
>=20
> Good day,
> Manu
> On Apr 19, 2013 10:26 AM, "qibaoyuan" <qibaoyuan@gmail.com> wrote: