Baolong Mao created HDDS-4656:
---------------------------------
Summary: Add a container balancer tool or service for SCM
Key: HDDS-4656
URL: https://issues.apache.org/jira/browse/HDDS-4656
Project: Hadoop Distributed Data Store
Issue Type: New Feature
Components: SCM, Tools
Affects Versions: 1.1.0
Reporter: Baolong Mao
Assignee: Baolong Mao
When an existing Ozone cluster is nearly full, we have to add more datanodes
into the Ozone cluster, but there are two issue we must face.
- When new allocate container request coming, SCM should better to choose the
datanodes in low usage, if not, the performance will getting pool.
- For read request, the existing datanodes stored lots of blocks, so they are
responsible for serving the read request and supply the data stream service,
meanwhile, the new coming datanodes can help nothing.
If we have a balancer tool just like hdfs balancer, we can move the block or
container from some high usage datanodes to low, I think this is one of
necessary tools for Ozone.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
