Re: MESSAGE-DESERIALIZER-POOL is slow down by SliceFromReadCommand

2010-06-28 Thread Jonathan Ellis
g thread MESSAGE-DESERIALIZER-POOL-1 executes the > SliceFromReadCommand task. > ReadCommand is much slower than message de-serialization and costs many > milliseconds, so It look like that MESSAGE-DESERIALIZER-POOL is slow down by > SliceFromReadCommand. > > >

Re: MESSAGE-DESERIALIZER-POOL is slow down by SliceFromReadCommand

2010-06-28 Thread Lu Ming
much slower than message de-serialization and costs many milliseconds, so It look like that MESSAGE-DESERIALIZER-POOL is slow down by SliceFromReadCommand. From: Lu Ming Sent: Wednesday, June 23, 2010 11:50 PM To: user@cassandra.apache.org Subject: MESSAGE-DESERIALIZER-POOL is slow down by

MESSAGE-DESERIALIZER-POOL is slow down by SliceFromReadCommand

2010-06-23 Thread Lu Ming
Yesterday and today , I found there are many pending message (>100,000) to be de-serialized in MESSAGE-DESERIALIZER-POOL. and I do the thread dump, It seems that some "SliceRead" is NOT executed by StageManager.READ_STAGE and executed by MESSAGE-DESERIALIZER-POOL. It is somewhat strange. Read fr