Hi Liwei, Could JVM warm-up account for the additional time required to getData?
Or do you have log4j logging set to something other than INFO? DEBUG/TRACE can slow things down. Regards, Kathleen On Wed, Sep 12, 2012 at 3:33 AM, sun liwei <[email protected]> wrote: > The version of zookeeper is 3.3.4. > > On Wed, Sep 12, 2012 at 6:07 PM, sun liwei <[email protected]> wrote: > >> Here is what I haveļ¼ >> >> >> - zookeeper cluster with 3 severs >> - 1700+ kafka topics (that means there are 1700+ children under path >> '/brokers/topics'), these topics are written frequently by kafka. >> - log file size is 67108880 byte, snapshot file size is 4192072 >> byte, new log/snapshot files are created every one or two minutes >> >> The problem is that it takes more than 40ms to getData of a single topic. >> I have another zookeeper cluster and the getData takes no more than 2ms to >> getData of a single path. This cluster doesn't server kafka. >> >> Any body knows why the performance is so bad? >> >> Many thanks and best regards. >> >> Liwei >>
