My quick impression is that this is a very slow network connection and not much memory.
On 4/20/08 8:42 PM, "Yingyuan Cheng" <[EMAIL PROTECTED]> wrote: > > To be complete, I ran WordCount task implemented with JNI. The result is > acceptable, though slower than pure java. It finished in 32mins, 30sec, > > -- > Yingyuan > > > Yingyuan Cheng 写道: >> Does anyone run Hadoop in PC cluster? >> >> I just tested WordCount in PC cluster, and my first impression as following: >> >> ***************************************************************************** >> ********** >> >> Number of PCs: 7(512M RAM, 2.8G CPU, 100M NIC, CentOS 5.0, Handoop >> 0.16.1, Sun jre 1.6) >> Master(Namenode): 1 >> Master(Jobtracker): 1 >> Slaves(Datanode & Tasktracker): 5 >> >> ... > >> 2. Map/Reduce with Java >> ---------------------------------------------------------- >> >> Time elapsed: 19mins, 56sec >> Bytes/time rate: 3,591,422 bytes/sec >> >
