CacheOnWrite is using the temporary output path for block names, need to use a
more consistent block naming scheme
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Key: HBASE-3417
URL: https://issues.apache.org/jira/browse/HBASE-3417
Project: HBase
Issue Type: Bug
Components: io, regionserver
Affects Versions: 0.92.0
Reporter: Jonathan Gray
Assignee: Jonathan Gray
Priority: Critical
Fix For: 0.92.0
Currently the block names used in the block cache are built using the
filesystem path. However, for cache on write, the path is a temporary output
file.
The original COW patch actually made some modifications to block naming stuff
to make it more consistent but did not do enough. Should add a separate method
somewhere for generating block names using some more easily mocked scheme
(rather than just raw path as we generate a random unique file name twice, once
for tmp and then again when moved into place).
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