Hi All,
I have Cassandra stack with 2 Dc
Datacenter: DRPOCcluster
========================
Status=Up/Down
|/ State=Normal/Leaving/Joining/Moving
-- Address Load Tokens Owns Host ID
Rack
UN 172.29.xx.xxx 88.88 GB 256 ?
b6b8cbb9-1fed-471f-aea9-6a657e7ac80a 01
UN 172.29.xx.xxx 73.95 GB 256 ?
604abbf5-8639-4104-8f60-fd6573fb2e17 03
UN 172.29. xx.xxx 66.42 GB 256 ?
32fa79ee-93c6-4e5b-a910-f27a1e9d66c1 02
Datacenter: dc_india
====================
Status=Up/Down
|/ State=Normal/Leaving/Joining/Moving
-- Address Load Tokens Owns Host ID
Rack
DN 172.26. .xx.xxx 78.97 GB 256 ?
3e8133ed-98b5-418d-96b5-690a1450cd30 RACK1
DN 172.26. .xx.xxx 79.18 GB 256 ?
7d3f5b25-88f9-4be7-b0f5-746619153543 RACK2
I am using below code to connect with java driver:
cluster =
Cluster.builder().addContactPoints(hostAddresses).withRetryPolicy(DefaultRetryPolicy.INSTANCE)
.withReconnectionPolicy(new
ConstantReconnectionPolicy(30000L))
.withLoadBalancingPolicy(new TokenAwarePolicy(new
DCAwareRoundRobinPolicy.Builder().withLocalDc("DRPOCcluster").withUsedHostsPerRemoteDc(2).build())).build();
cluster.getConfiguration().getQueryOptions().setConsistencyLevel(ConsistencyLevel.LOCAL_QUORUM);
hostAddresses is 172.29.xx.xxx . when Dc with IP 172.26. .xx.xxx is down, we
are getting below exception :
Exception in thread "main"
com.datastax.driver.core.exceptions.UnavailableException: Not enough replicas
available for query at consistency QUORUM (3 required but only 2 alive)
at
com.datastax.driver.core.exceptions.UnavailableException.copy(UnavailableException.java:109)
at
com.datastax.driver.core.exceptions.UnavailableException.copy(UnavailableException.java:27)
at
com.datastax.driver.core.DriverThrowables.propagateCause(DriverThrowables.java:37)
at
com.datastax.driver.core.DefaultResultSetFuture.getUninterruptibly(DefaultResultSetFuture.java:245)
Cassandra version : 3.0.9
Datastax Java Driver Version:
<dependency>
<groupId>com.datastax.cassandra</groupId>
<artifactId>cassandra-driver-core</artifactId>
<version>3.1.2</version>
</dependency>
Thanks & Regards,
Abhishek Kumar Maheshwari
+91- 9999805591 (Mobile)
Times Internet Ltd. | A Times of India Group Company
FC - 6, Sector 16A, Film City, Noida, U.P. 201301 | INDIA
P Please do not print this email unless it is absolutely necessary. Spread
environmental awareness.
We the soldiers of our new economy, pledge to stop doubting and start spending,
to enable others to go digital, to use less cash. We pledge to
#RemonetiseIndia. Join the Times Network 'Remonetise India' movement today. To
pledge for growth, give a missed call on +91 9223515515. Visit
www.remonetiseindia.com
