THX for your reply ,Jonathan.
On Sat, Jun 12, 2010 at 7:46 PM, Anty <email@example.com> wrote:5000 uncompacted sstables is unusual. did you disable compaction
> I have 10 nodes cluster ,after inserting many records into the cluster, i
> compact each node by nodetool compact.
during your inserts? that is dangerous.
sounds like it just didn't have enough memory to compact 5000 sstables
> during the compaciton process ,something wrong with one of the 10 nodes ,
> when the size of the compacted temp file rech nearly 100GB( before
> compaction ,the size is ~240G)
at once. not very surprising.
a better approach: let it perform minor compactions normally, and when
it is done with that (no compaction in progress and
compactionmanager.pendingtasks == 0), then issue the major compaction
if you still want to.
Project Chair, Apache Cassandra
co-founder of Riptano, the source for professional Cassandra support