Hi I am using Cassandra 1.0.6 version in our production system and noticed that Cassandra flushing the data to SSTable and the file size is < 10MB. With under moderate write load, the Cassandra flushing lots of memtables with small sizes. With this compaction doing lots of compactions.
O/S - Centos 64bit Sun Java 1.6_31 VM size - 2.4GB Following parameters change on cassandra.yaml file. flush_largest_memtables_at: 0.45 (reduce it from .75) reduce_cache_sizes_at: 0.55 (reduce it from .85) reduce_cache_capacity_to: 0.3 (reduce it from .6) concurrent_compactors: 1 memtable_total_space_in_mb: 200 in_memory_compaction_limit_in_mb: 16 (from 64MB) Key cache = 10000 Row cache = 0 Could someone please help me on this. Thanks /Roshan -- View this message in context: http://cassandra-user-incubator-apache-org.3065146.n2.nabble.com/Cassandra-1-0-6-data-flush-query-tp7580733.html Sent from the cassandra-u...@incubator.apache.org mailing list archive at Nabble.com.
