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https://issues.apache.org/jira/browse/HDFS-16549?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yuanbo Liu updated HDFS-16549:
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Description:
It's great to see the implement of fine-grain lock for DN has been committed
into trunk.
FsDatasetImpl.invalidate is a frequent method to response the delete command
from NN. How about using volume-level write lock instead of pool-level write
lock to reduce the cost of write lock.
cc: [~hexiaoqiao] [~Aiphag0] .
Thanks for your great work!
was:
It's great to see the implement of fine-grain lock for DN has been committed
into trunk.
FsDatasetImpl.invalidate is a frequent method to response the delete command
from NN. How about using volume-level write lock instead of pool-level write
lock to reduce the cost of write lock.
cc: [~hexiaoqiao] [~Aiphag0] .
Thanks for your great work!
h4. [Mingxiang
Li|https://issues.apache.org/jira/secure/ViewProfile.jspa?name=Aiphag0]
> Consider using volume level lock for deleting blocks
> ----------------------------------------------------
>
> Key: HDFS-16549
> URL: https://issues.apache.org/jira/browse/HDFS-16549
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Yuanbo Liu
> Priority: Major
>
> It's great to see the implement of fine-grain lock for DN has been committed
> into trunk.
> FsDatasetImpl.invalidate is a frequent method to response the delete command
> from NN. How about using volume-level write lock instead of pool-level write
> lock to reduce the cost of write lock.
> cc: [~hexiaoqiao] [~Aiphag0] .
> Thanks for your great work!
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