How do I run Nodetool repair?

How do I run Nodetool repair?

Usage and Best Practices

1. Incremental repair is the default and is run with the following command: nodetool repair.
2. A full repair can be run with the following command: nodetool repair –full.
3. Additionally, repair can be run on a single keyspace: nodetool repair [options]
4. Or even on specific tables:

What does Nodetool repair do?

Repairs one or more tables. The repair command repairs one or more nodes in a cluster, and provides options for restricting repair to a set of nodes, see Repairing nodes. Performing an anti-entropy node repair on a regular basis is important, especially in an environment that deletes data frequently.

What port does Nodetool use?

port 7199
The nodetool utility communicates through JMX on port 7199.

What does Nodetool drain do?

Drains the node. Flushes all memtables from the node to SSTables on disk. DSE stops listening for connections from the client and other nodes.

How do I speed up Cassandra repair?

1 Answer

1. The only way I see to significantly increase the speed of a full repair is to run it in parallel or repair subrange by subrange.
2. 1) Parallel full repair.
3. 2) Subrange repair nodetool accepts start and end token parameters like so nodetool repair -st (start token) -et (end token) $keyspace $columnfamily.

How do I check my Cassandra repair status?

You can check the repair status in two ways: through the Reaper UI or by using the spreaper command. Cassandra cluster is started….Checking repair status.

Command	Description
status-cluster	Show status of a Cassandra cluster, and any existing repair runs for the cluster.
status-repair	Show status of a repair run.

How do I find my Cassandra port number?

Cassandra

1. 7199 JMX monitoring port.
2. 1024 – 65355 Random port required by JMX. Starting with Java 7u4 a specific port can be specified using the com. sun. management. jmxremote. rmi. port property.
3. 7000 Inter-node cluster.
4. 7001 SSL inter-node cluster.
5. 9042 CQL Native Transport Port.
6. 9160 Thrift.

What is the default port for Cassandra?

What ports does Cassandra use? By default, Cassandra uses 7000 for cluster communication (7001 if SSL is enabled), 9042 for native protocol clients, and 7199 for JMX.

How long does Nodetool drain take?

around 2 to 3 hours
nodetool drain taking around 2 to 3 hours.

How do I check my Cassandra compaction status?

If you grep the cassandra log file for lines containing Compacting you will find the sstables that are part of a compaction. If you sum these sizes and multiply by the inverse of your compression ratio for the column family you will get pretty close to the total.

How do I check Nodetool status?

Check the status of the Cassandra nodes in your cluster – Go to the //apache-cassandra/bin/ directory and type the ./nodetool status command. If the status for all the nodes shows as UN , then the nodes are up and running. If the status for any node shows as DN , then that particular node is down.