Thanks Aaron for the indormation.
I increased the VM size to 2.4G from 1.4G. Please check my current CF in
below.
Keyspace: WCache:
Replication Strategy: org.apache.cassandra.locator.SimpleStrategy
Durable Writes: true
Options: [replication_factor:3]
Column Families:
ColumnFamily: WStandard
Key Validation Class: org.apache.cassandra.db.marshal.BytesType
Default column value validator:
org.apache.cassandra.db.marshal.BytesType
Columns sorted by: org.apache.cassandra.db.marshal.BytesType
Row cache size / save period in seconds / keys to save : 1000.0/0/all
Row Cache Provider:
org.apache.cassandra.cache.ConcurrentLinkedHashCacheProvider
Key cache size / save period in seconds: 200001.0/3600
GC grace seconds: 3600
Compaction min/max thresholds: 4/32
Read repair chance: 1.0
Replicate on write: true
Built indexes: []
Compaction Strategy:
org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy
I have already done the below configuration changes after getting the OOM.
/app/Cassandra/conf/cassandra-env.sh
================================
JVM_OPTS -XX:CMSInitiatingOccupancyFraction=45 (reduce it from 75)
/app/Cassandra/conf/Cassandra.yaml
================================
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
I will also apply the configuration you suggest in locally first then to
production. Appreciate your comments regarding this. Thanks.
--
View this message in context:
http://cassandra-user-incubator-apache-org.3065146.n2.nabble.com/Best-suitable-value-for-flush-largest-memtables-at-tp7310767p7313260.html
Sent from the cassandra-u...@incubator.apache.org mailing list archive at
Nabble.com.
