RE: nodes moving spontaneously

2012-06-04 Thread Curt Allred
Thanks for the tip. Checked nodetool ring on all nodes and they all have a consistent view of the ring. We have had other problems like nodes crashing etc so anything could have happened, but we're sure we didnt issue a nodetool move command. From: Tyler Hobbs [mailto:ty...@datastax.com]

nodes moving spontaneously

2012-06-01 Thread Curt Allred
We have a 10 node cluster (v0.7.9) split into 2 datacenters. Three times we have seen nodes move themselves to different locations in the ring. In each case, the move unbalanced the ring. In one case a node moved to the opposite side of the ring. Sometime after the first spontaneous move we

RE: will compaction delete empty rows after all columns expired?

2012-05-30 Thread Curt Allred
No, these were not wide rows. They are rows that formerly had one or 2 columns. The columns are deleted but the empty rows dont go away, even after gc_grace_secs. So if I understand... the empty row will only be removed after gc_grace if enough compactions have occurred so that all the column

RE: will compaction delete empty rows after all columns expired?

2012-05-25 Thread Curt Allred
This is an old thread from December 27, 2011. I interpret the yes answer to mean you do not have to explicitly delete an empty row after all of its columns have been deleted, the empty row (i.e. row key) will automatically be deleted eventually (after gc_grace). Is that true? I am not

RE: hadoop library conflict with cassandra (hector) 0.7

2011-02-07 Thread Curt Allred
Hello, I'm trying to access a Cassandra 0.7 cluster in a hadoop map-reduce job (hadoop 0.20.2) and seeing a thrift library conflict. Hadoop uses an older version of thrift than hector 0.7, and this older version is getting picked up by my job, causing the following exception: FATAL