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From Manu Zhang <owenzhang1...@gmail.com>
Subject Why my Cassandra is compacting like mad
Date Mon, 15 Oct 2012 15:02:43 GMT
My Cassandra is compacting like mad (look at the following messages) after
I restart it after a timeout query. It won't stop until I kill the process.


INFO 22:57:41,839 Compacting
[SSTableReader(path='/home/manuzhang/cassandra/data/system/schema_columns/system-schema_columns-ia-1258-Data.db')]
 INFO 22:57:42,077 Compacted to
[/home/manuzhang/cassandra/data/system/schema_columns/system-schema_columns-ia-1259-Data.db,].
 4,377 to 4,377 (~100% of original) bytes for 3 keys at 0.017539MB/s.
 Time: 238ms.
 INFO 22:57:42,079 Compacting
[SSTableReader(path='/home/manuzhang/cassandra/data/system/schema_columns/system-schema_columns-ia-1259-Data.db')]
 INFO 22:57:42,309 Compacted to
[/home/manuzhang/cassandra/data/system/schema_columns/system-schema_columns-ia-1260-Data.db,].
 4,377 to 4,377 (~100% of original) bytes for 3 keys at 0.018149MB/s.
 Time: 230ms.
 INFO 22:57:42,311 Compacting
[SSTableReader(path='/home/manuzhang/cassandra/data/system/schema_columns/system-schema_columns-ia-1260-Data.db')]
 INFO 22:57:42,574 Compacted to
[/home/manuzhang/cassandra/data/system/schema_columns/system-schema_columns-ia-1261-Data.db,].
 4,377 to 4,377 (~100% of original) bytes for 3 keys at 0.015872MB/s.
 Time: 263ms.
 INFO 22:57:42,576 Compacting
[SSTableReader(path='/home/manuzhang/cassandra/data/system/schema_columns/system-schema_columns-ia-1261-Data.db')]
 INFO 22:57:42,814 Compacted to
[/home/manuzhang/cassandra/data/system/schema_columns/system-schema_columns-ia-1262-Data.db,].
 4,377 to 4,377 (~100% of original) bytes for 3 keys at 0.017539MB/s.
 Time: 238ms.
 INFO 22:57:42,816 Compacting
[SSTableReader(path='/home/manuzhang/cassandra/data/system/schema_columns/system-schema_columns-ia-1262-Data.db')]
 INFO 22:57:43,070 Compacted to
[/home/manuzhang/cassandra/data/system/schema_columns/system-schema_columns-ia-1263-Data.db,].
 4,377 to 4,377 (~100% of original) bytes for 3 keys at 0.016434MB/s.
 Time: 254ms.

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