Re: Issue with leveled compaction and data migration

2013-09-23 Thread Mike
Thanks for the response Rob, And yes, the relevel helped the bloom filter issue quite a bit, although it took a couple of days for the relevel to complete on a single node (so if anyone tried this, be prepared) -Mike Sent from my iPhone On Sep 23, 2013, at 6:34 PM, Robert Coli wrote: > On F

Re: Issue with leveled compaction and data migration

2013-09-23 Thread Robert Coli
On Fri, Sep 13, 2013 at 4:27 AM, Michael Theroux wrote: > Another question on [the topic of row fragmentation when old rows get a > large append to their "end" resulting in larger-than-expected bloom > filters]. > > Would forcing the table to relevel help this situation? I believe the > process t

Re: Issue with leveled compaction and data migration

2013-09-13 Thread Michael Theroux
Another question on this topic. Would forcing the table to relevel help this situation? I believe the process to do this on 1.1.X would be to stop cassandra, remove .json file, and restart cassandra. Is this true? Any help would be appreciated, Thanks, -Mike On Sep 12, 2013, at 6:47 PM, Mich

Issue with leveled compaction and data migration

2013-09-13 Thread Michael Theroux
Hello, We've been undergoing a migration on Cassandra 1.1.9 where we are combining two column families. We are incrementally moving data from one column family into another, where the columns in a row in the source column family are being appended to columns in a row in the target column famil