Haiyang Hu created HDFS-17243:
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Summary: Add the parameter storage type for getBlocks method
Key: HDFS-17243
URL: https://issues.apache.org/jira/browse/HDFS-17243
Project: Hadoop HDFS
Issue Type: Improvement
Components: balamcer
Reporter: Haiyang Hu
Assignee: Haiyang Hu
When Balancer is running, it is found that there are many logs, such as
{code:java}
INFO balancer.Dispatcher (Dispatcher.java:markMovedIfGoodBlock(306)) - No
striped internal block on source xxx:50010:SSD, block blk_-xxx_xxx
size=982142783. Skipping.
{code}
these logs show that Balancer cannot to balancer SSD type sourceļ¼ and it causes
that Balancer will frequently get blocks from NN through getBlocks RPC.
The main reason is the storage type in the current Source is SSD, but now
getBlocks obtains all list of blocks belonging to datanode, so need add the
parameter storage type for getBlocks method
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