Cassandra 0.5.1 slow down after doing a lot of inserts

2010-04-16 Thread Lu Ming
Hi: We have build a storage system with 4 nodes in the cluster. We use the default configuration file, every node have 2*E5504 CPU, 8G memory and 6*1T Sata disk. The cluster stores about 600G data. We found that Cassandra 0.5.1 ALWAYS slow down after a lot of inserts. When it happens, C

Re: Cassandra 0.5.1 slow down after doing a lot of inserts

2010-04-16 Thread Lu Ming
Cassandra often take >30 minutes to write about 300,000 row-mutations when startup and replaying commitlog! -- From: "Lu Ming" Sent: Friday, April 16, 2010 11:33 PM To: Subject: Cassandra 0.5.1 slow down after doing a lot of inser