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https://issues.apache.org/jira/browse/HBASE-2219?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12833724#action_12833724
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ryan rawson commented on HBASE-2219:
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here is another test:
without:
10/02/15 01:06:24 INFO hbase.PerformanceEvaluation: Finished randomRead in
11106ms at offset 0 for 40000 rows
2199:
10/02/15 01:09:52 INFO hbase.PerformanceEvaluation: Finished randomRead in
12596ms at offset 0 for 40000 rows
This is 13% slower, which isnt really that great. Maybe some profiling will
help.
> stop using code mapping for method names in the RPC
> ---------------------------------------------------
>
> Key: HBASE-2219
> URL: https://issues.apache.org/jira/browse/HBASE-2219
> Project: Hadoop HBase
> Issue Type: Bug
> Components: ipc
> Affects Versions: 0.20.3
> Reporter: ryan rawson
> Priority: Blocker
> Fix For: 0.21.0
>
> Attachments: HBASE-2219-2.patch, HBASE-2219.patch
>
>
> since we use a sorted mapping of method names -> codes and send that over the
> wire, even trivial changes, such as adding a new call, become
> wire-incompatible. This means many features which could easily have gone
> into a minor update must wait for a major update. Eg: 2066, 1845, etc.
> This will increase on-wire overhead, but the compatibility is worth it I
> think.
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