My guess would be that most developers are not aware that the beginAndRepairPaxos() could also trigger a write and assume that write timeouts would refer to a timeout while writting the actual CAS update. Its therefor not safe to assume that successive CAS or SERIAL read operations will cause a (write-)timeouted CAS operation to get eventually applied. Although some Open Cassandra configuration: read_request_timeout_in_ms (ms): 10000 range_request_timeout_in_ms (ms): 10000 write_request_timeout_in_ms (ms): 5000 cas_contention_timeout_in_ms (ms): 1000 truncate_request_timeout_in_ms (ms): 60000 request_timeout_in_ms (ms): 10000. I have tried the same job by increasing read_request_timeout_in_ms (ms) to 20,000 as well but it didn't help. ReadTimeoutException Cassandra is know for its fast write due to its simple write path. However if you are facing write latency, try to observe the symptoms and identify the bottleneck. Below are some reasons and… CASSANDRA READ or write timeout:problem: Cassandra timeout during write query at consistency LOCAL_ONE (1 replica were required but only 0 acknowledged the write) Cassandra timeout d The cassandra.yaml file is the main configuration file for Cassandra. counter_write_request_timeout_in_ms (Default: 5000 milliseconds) The number of milliseconds that the coordinator waits for counter writes to complete before timing it out. cas_contention_timeout_in_ms (Default: 1000 milliseconds) The number of milliseconds during which the coordinator continues to retry a CAS (compare Cassandra timeout during write query at consistency ONE (1 replica were required but only 0 acknowledged the write)Cassandra timeout during write query at consistency ONE (1 replica were required but only 0 acknowledged the write) Rappel 1: Une table contenant un compteur doit respecter certaines conditions: La colonne du compteur ne doit pas être indexé; La table doit contenir UNIQUEMENT la I am running cassandra with docker. I tried to change the cassandra.yaml write_request_timeout_in_ms: 20000 but that didn't made much difference. UPDATE: I tried setting the consistency level to ONE (also tried other): Cassandra CAS. Datomic/CassandraCAS (2) Languages:Java. Templates:Cassandra. License:Apache 2.0. Setup. From Cassandra cqlsh: CREATE KEYSPACE IF NOT EXISTS datomic WITH replication = {'class': 'SimpleStrategy', 'replication_factor' : 3}; CREATE TABLE IF NOT EXISTS datomic.datomic ( id text PRIMARY KEY, rev bigint, map text, val blob ); Start a 3+ node cassandra cluster. Get Cassandra running I have also met this problem, "Cassandra timeout during write query at consistency LOCAL_ONE (0 replicas) acknowledged the write over 1 required" "Cassandra timeout during read query at consistency LOCAL_ONE (0 replicas) acknowledged the write over 1 required". I have dealt with it by change the parameter in cassandra.yaml. Searching "timeout" in cassandra.yaml,you will find read_request I've changed configurations in my cassandra.yaml file. read_request_timeout_in_ms: 60000 range_request_timeout_in_ms: 60000 write_request_timeout_in_ms: 40000 cas_contention_timeout_in_ms: 3000 truncate_request_timeout_in_ms: 60000 request_timeout_in_ms: 60000 But it still throws timeout approximately in 10 seconds. Any ideas how can I fix this problem? cassandra cassandra-2.0 datastax
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