Which SSTable caused CorruptSSTableException?

2014-02-25 Thread Ike Walker
Running Cassandra 1.2.9 in AWS with a 12 host cluster, I am getting lots of CorruptSSTableException in system.log on one of my hosts. Is it possible to find out which SSTable(s) is/are corrupt? I'm currently running "nodetool scrub" on the relevant host, but that doesn't seem like an efficient wa

Re: Conference or training recommendations

2013-12-16 Thread Ike Walker
Datstax recently started offering free virtual training. You may want to try that first: http://www.datastax.com/what-we-offer/products-services/training/virtual-training There are also many Cassandra meetups around the world: http://cassandra.meetup.com/ Datstax also offers classroom training,

CQL workaround for modifying a primary key

2013-12-03 Thread Ike Walker
table doesn't actually delete the data, and I end up with a problem like this: https://issues.apache.org/jira/browse/CASSANDRA-4857 What's a good workaround for this, assuming I don;t want to change the name of my table? Should I just truncate the table, then drop it and recreate it?

Re: Output of "nodetool ring" with virtual nodes

2013-10-15 Thread Ike Walker
Hi Paulo, Yes, that is expected. Now that you are using virtual nodes you should use "nodetool status" to see an output similar to what you saw with "nodetool ring" before you enabled virtual nodes. -Ike Walker On Oct 15, 2013, at 1

Re: Long running nodetool move operation

2013-09-11 Thread Ike Walker
The restart worked. Thanks, Rob! After the restart I ran 'nodetool move' again, used 'nodetool netstats | grep -v "0%"' to verify that data was actively streaming, and the move completed successfully. -Ike On Sep 10, 2013, at 11:04 AM, Ike Walker wrote: >

Re: Long running nodetool move operation

2013-09-10 Thread Ike Walker
wrote: > On Mon, Sep 9, 2013 at 7:08 PM, Ike Walker wrote: > I've been using nodetool move to rebalance my cluster. Most of the moves take > under an hour, or a few hours at most. The current move has taken 4+ days so > I'm afraid it will never complete. What's the be

Long running nodetool move operation

2013-09-09 Thread Ike Walker
I've been using nodetool move to rebalance my cluster. Most of the moves take under an hour, or a few hours at most. The current move has taken 4+ days so I'm afraid it will never complete. What's the best way to cancel it and try again? I'm running a cluster of 12 nodes at AWS. Each node runs

How many seed nodes should I use?

2013-08-28 Thread Ike Walker
of too many or too few seeds. Any advice is appreciated. Thanks! -Ike Walker