Hi I'm running Cassandra 2.1.5 ,(single datacenter ,4 node,16GB vps each
node ),I have given my configuration below, I'm using python driver on my
clients ,when i tried to insert 1049067 items I got an error.
cassandra.WriteTimeout: code=1100 [Coordinator node timed out waiting for
replica nodes' responses] message="Operation timed out - received only 0
responses." info={'received_responses': 0, 'required_responses': 1,
'consistency': 'ONE'}
also I'm getting an error when I check the count of CF from cqlsh
OperationTimedOut: errors={}, last_host=127.0.0.1
I've installed Datastax Ops center for monitoring nodes , it shows about
1000/sec write request even the cluster is idle .
Is there any problem with my cassandra configuration
cluster_name: 'Test Cluster'
num_tokens: 256
hinted_handoff_enabled: true
.
max_hint_window_in_ms: 10800000 # 3 hours
hinted_handoff_throttle_in_kb: 1024
max_hints_delivery_threads: 2
batchlog_replay_throttle_in_kb: 1024
authenticator: AllowAllAuthenticator
authorizer: AllowAllAuthorizer
permissions_validity_in_ms: 2000
partitioner: org.apache.cassandra.dht.Murmur3Partitioner
data_file_directories:
- /var/lib/cassandra/data
commitlog_directory: /var/lib/cassandra/commitlog
disk_failure_policy: stop
commit_failure_policy: stop
key_cache_size_in_mb:
key_cache_save_period: 14400
row_cache_size_in_mb: 0
row_cache_save_period: 0
counter_cache_size_in_mb:
counter_cache_save_period: 7200
saved_caches_directory: /var/lib/cassandra/saved_caches
commitlog_sync: periodic
commitlog_sync_period_in_ms: 10000
commitlog_segment_size_in_mb: 32
seed_provider:
- class_name: org.apache.cassandra.locator.SimpleSeedProvider
parameters:
- seeds: "10.xx.xx.xx,10.xx.xx.xxx"
concurrent_reads: 45
concurrent_writes: 64
concurrent_counter_writes: 32
memtable_allocation_type: heap_buffers
memtable_flush_writers: 6
index_summary_capacity_in_mb:
index_summary_resize_interval_in_minutes: 60
trickle_fsync: false
trickle_fsync_interval_in_kb: 10240
storage_port: 7000
ssl_storage_port: 7001
listen_address: 10.xx.x.xxx
start_native_transport: true
native_transport_port: 9042
rpc_address: 0.0.0.0
rpc_port: 9160
broadcast_rpc_address: 10.xx.x.xxx
rpc_keepalive: true
rpc_server_type: sync
thrift_framed_transport_size_in_mb: 15
incremental_backups: false
snapshot_before_compaction: false
auto_snapshot: true
tombstone_warn_threshold: 1000
tombstone_failure_threshold: 100000
column_index_size_in_kb: 64
batch_size_warn_threshold_in_kb: 5
compaction_throughput_mb_per_sec: 16
sstable_preemptive_open_interval_in_mb: 50
read_request_timeout_in_ms: 5000
range_request_timeout_in_ms: 10000
write_request_timeout_in_ms: 2000
counter_write_request_timeout_in_ms: 5000
cas_contention_timeout_in_ms: 1000
truncate_request_timeout_in_ms: 60000
request_timeout_in_ms: 10000
cross_node_timeout: false
endpoint_snitch: SimpleSnitch
dynamic_snitch_update_interval_in_ms: 100
dynamic_snitch_reset_interval_in_ms: 600000
dynamic_snitch_badness_threshold: 0.1
request_scheduler: org.apache.cassandra.scheduler.NoScheduler
server_encryption_options:
internode_encryption: none
keystore: conf/.keystore
keystore_password: cassandra
truststore: conf/.truststore
truststore_password: cassandra
# enable or disable client/server encryption.
client_encryption_options:
enabled: false
keystore: conf/.keystore
keystore_password: cassandra
internode_compression: all
inter_dc_tcp_nodelay: false
