I've seen the other posts about memory consumption, but I'm seeing some weird
behavior with 0.7.4 with 5 GB heap size (64 bit system with 8 GB ram
total)...
note the virtual mem used 20.6 GB ?! and Shared 8.4 GB ?!
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2390 root 20 0 0 0 0 D 1 0.0 0:28.73 flush-104:0
31684 cassandr 20 0 20.6g 3.5g 8496 S 1 45.4 4:08.91 java
17 root 20 0 0 0 0 S 0 0.0 0:38.03 events/2
What could be going on here?
config ....
initial_token:
auto_bootstrap: true
hinted_handoff_enabled: true
max_hint_window_in_ms: 3600000 # one hour
hinted_handoff_throttle_delay_in_ms: 50
authenticator: org.apache.cassandra.auth.AllowAllAuthenticator
authority: org.apache.cassandra.auth.AllowAllAuthority
partitioner: org.apache.cassandra.dht.RandomPartitioner
data_file_directories:
- /var/lib/cassandra/data
commitlog_directory: /var/lib/cassandra/commitlog
saved_caches_directory: /var/lib/cassandra/saved_caches
commitlog_rotation_threshold_in_mb: 128
commitlog_sync: periodic
commitlog_sync_period_in_ms: 10000
flush_largest_memtables_at: 0.75
reduce_cache_sizes_at: 0.85
reduce_cache_capacity_to: 0.6
disk_access_mode: auto
concurrent_reads: 16
concurrent_writes: 32
sliced_buffer_size_in_kb: 64
storage_port: 7000
rpc_port: 9160
rpc_keepalive: true
thrift_framed_transport_size_in_mb: 15
thrift_max_message_length_in_mb: 16
snapshot_before_compaction: false
binary_memtable_throughput_in_mb: 256
column_index_size_in_kb: 64
in_memory_compaction_limit_in_mb: 64
rpc_timeout_in_ms: 10000
endpoint_snitch: org.apache.cassandra.locator.RackInferringSnitch
dynamic_snitch: true
dynamic_snitch_update_interval_in_ms: 100
dynamic_snitch_reset_interval_in_ms: 600000
dynamic_snitch_badness_threshold: 0.0
request_scheduler: org.apache.cassandra.scheduler.NoScheduler
index_interval: 128
keyspaces:
- name: DFS
replica_placement_strategy:
org.apache.cassandra.locator.OldNetworkTopologyStrategy
replication_factor: 3
column_families:
- name: main
compare_with: BytesType
keys_cached: 200000
rows_cached: 200
row_cache_save_period_in_seconds: 0
key_cache_save_period_in_seconds: 3600
