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From Adam Crain <>
Subject Fwd: read timeouts in cassandra 0.6.5
Date Fri, 05 Nov 2010 15:19:12 GMT

I have a simple keyspace:

<Keyspace Name="reef-test">
      <ColumnFamily Name ="Meas" CompareWith="LongType" />





We're using it as a data historian. Many rows of measurments, measurement
history is in the columns by milliseconds since UNIX epoch. The single node
never has a problem writing, but even with low volume it will frequently
timeout while reading:

Read timed out
org.apache.thrift.transport.TTransportException: Read timed out
	at org.apache.thrift.transport.TTransport.readAll(
	at org.apache.thrift.protocol.TBinaryProtocol.readAll(
	at org.apache.thrift.protocol.TBinaryProtocol.readI32(
	at org.apache.thrift.protocol.TBinaryProtocol.readMessageBegin(
	at org.apache.cassandra.thrift.Cassandra$Client.recv_multiget_slice(
	at org.apache.cassandra.thrift.Cassandra$Client.multiget_slice(

What settings should I be tuning to avoid this? Usually the latency is
quite low, but once in every 10 queries or so it's completely of the



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