Sorry, the record size should be 5KB not 5MB. Coz 4KB is still OK. I will try Benjamin's suggestion.
-----Original Message----- From: Jonathan Ellis [mailto:jbel...@gmail.com] Sent: Tuesday, June 15, 2010 8:09 AM To: user@cassandra.apache.org Subject: Re: java.lang.OutofMemoryerror: Java heap space if you are reading 500MB per thrift request from each of 3 threads, then yes, simple arithmetic indicates that 1GB heap is not enough. On Mon, Jun 14, 2010 at 6:13 PM, Caribbean410 <caribbean...@gmail.com> wrote: > Hi, > > I wrote 200k records to db with each record 5MB. Get this error when I uses > 3 threads (each thread tries to read 200k record totally, 100 records a > time) to read data from db. The write is OK, the error comes from read. > Right now the Xmx of JVM is 1GB. I changed it to 2GB, still not working. If > the record size is under 4K, I will not get this error. Any clues to avoid > this error? > > Thx > -- Jonathan Ellis Project Chair, Apache Cassandra co-founder of Riptano, the source for professional Cassandra support http://riptano.com
