Re: LevelDB type compaction

2011-09-23 Thread Sam Overton
On 17 September 2011 00:58, mcasandra wrote: > > > >> and updates could be scattered all over > >> before compaction? > > > > No, updates to a given row will be still be in a single sstable. > > Can you please explain little more? You mean that if Level 1 file contains > range from 1-100 all the

Re: LevelDB type compaction

2011-09-22 Thread mcasandra
Can someone please help me understand this a little bit? -- View this message in context: http://cassandra-user-incubator-apache-org.3065146.n2.nabble.com/LevelDB-type-compaction-tp6798334p6822344.html Sent from the cassandra-u...@incubator.apache.org mailing list archive at Nabble.com.

Re: LevelDB type compaction

2011-09-16 Thread mcasandra
a given key exists in multiple files? Thanks for the explanation -- View this message in context: http://cassandra-user-incubator-apache-org.3065146.n2.nabble.com/LevelDB-type-compaction-tp6798334p6802772.html Sent from the cassandra-u...@incubator.apache.org mailing list archive at Nabble.com.

Re: LevelDB type compaction

2011-09-15 Thread Jonathan Ellis
On Thu, Sep 15, 2011 at 3:05 PM, mcasandra wrote: > With Leveldb is it going to make reads slower No. Qualified: compared to "major compaction" under the tiered strategy, leveled reads will usually be a little slower for update-heavy loads. (For insert-mostly workloads compaction doesn't really