Re: questions related to the SSTable file

2013-09-17 Thread Takenori Sato(Cloudian)
Thanks, Rob, for clarifying! - Takenori (2013/09/18 10:01), Robert Coli wrote: On Tue, Sep 17, 2013 at 5:46 PM, Takenori Sato ts...@cloudian.com mailto:ts...@cloudian.com wrote: So in fact, incremental backup of Cassandra is just hard link all the new SSTable files being generated

Re: questions related to the SSTable file

2013-09-16 Thread Takenori Sato(Cloudian)
Hi, 1) I will expect same row key could show up in both sstable2json output, as this one row exists in both SSTable files, right? Yes. 2) If so, what is the boundary? Will Cassandra guarantee the column level as the boundary? What I mean is that for one column's data, it will be

Re: OrderPreservingPartitioner in 1.2

2013-08-25 Thread Takenori Sato(Cloudian)
From the Jira, One possibility is that getToken of OPP can return hex value if it fails to encode bytes to UTF-8 instead of throwing error. By this system tables seem to be working fine with OPP. This looks like an option to try for me. Thanks! (2013/08/23 20:44), Vara Kumar wrote: For

Re: Cleanup understastanding

2013-05-28 Thread Takenori Sato(Cloudian)
Hi Victor, As Andrey said, running cleanup doesn't work as you expect. The reason I need to clean things is that I wont need most of my inserted data on the next day. Deleted objects(columns/records) become deletable from sstable file when they get expired(after gc_grace_seconds). Such

Re: CPU hotspot at BloomFilterSerializer#deserialize

2013-02-05 Thread Takenori Sato(Cloudian)
Hi, We found this issue is specific to 1.0.1 through 1.0.8, which was fixed at 1.0.9. https://issues.apache.org/jira/browse/CASSANDRA-4023 So by upgrading, we will see a reasonable performnace no matter how large row we have! Thanks, Takenori (2013/02/05 2:29), aaron morton wrote: Yes,