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From 郭鹏 <gpcus...@gmail.com>
Subject Re: why Cassandra 0.5.1 write speed is very slow
Date Sun, 21 Mar 2010 03:28:25 GMT
You mean I waste lots of time waiting for the write reply?

How could I avoid this problem? Using multi-thread for very write operation?

I am totally confused.

Thx.

在 2010年3月21日 上午11:16,Jonathan Ellis <jbellis@gmail.com>写道:

> time a single-threaded client is spending waiting for a reply, is time
> it's not spending sending another request
>
> 2010/3/20 郭鹏 <gpcuster@gmail.com>:
> > Good ideal, I will try it with client multithread write.
> >
> > But I don't understand the meaning of "d the latency in cluster mode
> hurts
> > that much more."
> >
> > Thx.
> >
> > 2010/3/21 Jonathan Ellis <jbellis@gmail.com>
> >>
> >> 2010/3/20 郭鹏 <gpcuster@gmail.com>:
> >> > :)
> >> >
> >> > I just want to know why the write speed is ok in the standalone mode
> but
> >> > too
> >> > slow in the cluster mode.
> >> >
> >> > Am I doing something wrong?
> >>
> >> Probably, but it's hard to say what.
> >>
> >> Maybe you're just not using enough threads in your benchmark and the
> >> latency in cluster mode hurts that much more.
> >
> >
> >
> > --
> > Regards
> >    Peng Guo
> >
>



-- 
Regards
   Peng Guo

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