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https://issues.apache.org/jira/browse/HDFS-15254?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zheng Wang updated HDFS-15254:
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Description: We use ONE_SSD as storagy policy in HBase,but when using
bulkload,i found it could not specify a datanode to placement the SSD
replica,so the regionserver that hold the region will read the local DISK
replica,because the SSD replica is in remote node. (was: We use ONE_SSD as
storagy policy in HBase,but when using bulkload,i found it could not specify a
datanode to placement the SSD replica,so the regionserver that hold the region
may only can read the local DISK replica,because the SSD replica is in remote
node.)
> Namenode should have a favored ssd nodes hint for ssd related storagy policy
> ----------------------------------------------------------------------------
>
> Key: HDFS-15254
> URL: https://issues.apache.org/jira/browse/HDFS-15254
> Project: Hadoop HDFS
> Issue Type: New Feature
> Components: block placement
> Reporter: Zheng Wang
> Priority: Major
>
> We use ONE_SSD as storagy policy in HBase,but when using bulkload,i found it
> could not specify a datanode to placement the SSD replica,so the regionserver
> that hold the region will read the local DISK replica,because the SSD replica
> is in remote node.
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