Re: Cassandra 1.1.8 timeouts on clients

2013-02-06 Thread Terry Cumaranatunge
(ColumnFamilySerializer.java:144) On Wed, Feb 6, 2013 at 11:32 AM, Terry Cumaranatunge wrote: > I've gotten timeouts on clients when using Cassandra 1.1.8 in a cluster of > 12 nodes, but I don't see the same behavior when using Cassandra 1.0.10. > So, to do a controlled experiment, the followi

Cassandra 1.1.8 timeouts on clients

2013-02-06 Thread Terry Cumaranatunge
I've gotten timeouts on clients when using Cassandra 1.1.8 in a cluster of 12 nodes, but I don't see the same behavior when using Cassandra 1.0.10. So, to do a controlled experiment, the following was tried: 1. Started with Cassandra 1.0.10. Built a database and ran our test tools against it to bu

Cassandra 1.0 row deletion

2012-08-16 Thread Terry Cumaranatunge
Hi, We have a Cassandra 1.0 cluster that we run with RF=3 and perform operations using a consistency level of quorum. We use batch_mutate for all inserts and updates for atomicity across column families with the same row key, but use the thrift interface remove API call in C++ to delete a row so t

Key count mismatch in cluster for a column family

2011-10-25 Thread Terry Cumaranatunge
I have a cluster of 8 nodes all running 1.0. The stats shown on the 1st node on one of the CFs for the number of keys is much larger than expected. The first node shows the key count estimate to be 9.2M whereas the rest report ~650K on each node. The 650K is in the correct neighborhood of the numbe

1.0 compaction exceptions

2011-10-24 Thread Terry Cumaranatunge
Hello, I'm seeng the following exception during compaction. This is happening on Linux (RHEL 6) running Cassandra 1.0. This particular instance is with Leveled compaction, but we have seen this error in the past with SizeTiered compaction as well. We are not using compression. Any ideas on what m

Using ttl to expire columns rather than using delete

2011-10-11 Thread Terry Cumaranatunge
Hello, If you set a ttl and expire a column, I've read that this eventually turns into a tombstone and will be cleaned out by the GC. Are expirations considered a form of delete that still requires a node repair to be run in gc_grace_period seconds? The operations guide says you have to run node r