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https://issues.apache.org/jira/browse/HBASE-5889?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13267917#comment-13267917
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[email protected] commented on HBASE-5889:
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Excellent Jimmy.  High-level, too much has been moved to protobufutils IMO.  
Below I highlight where we have gone too far.  What you think?  Otherwise, 
these is not much of substance to my comments below.  I'd be up for committing 
this patch before it rots and addressing issues raised in a new jira if thats 
what you'd prefer.


security/src/main/java/org/apache/hadoop/hbase/security/HBasePolicyProvider.java
<https://reviews.apache.org/r/4993/#comment16658>

    Anyone working on removal of HMasterInterface?
    
    Devaraj will need to pick up these changes if your patch goes in before his.



src/main/jamon/org/apache/hadoop/hbase/tmpl/regionserver/RSStatusTmpl.jamon
<https://reviews.apache.org/r/4993/#comment16659>

    Is this right after Gregory's commit last night?  He hides pb Serverload 
inside a ServerLoad.  Perhaps have to go to pb RegionLoad still even after his 
commit?



src/main/jamon/org/apache/hadoop/hbase/tmpl/regionserver/RSStatusTmpl.jamon
<https://reviews.apache.org/r/4993/#comment16660>

    ok



src/main/java/org/apache/hadoop/hbase/HConstants.java
<https://reviews.apache.org/r/4993/#comment16662>

    These are just not used? 
    
    We used have a mechanism where you could subclass regionserver and then 
configure it so your subclass was started out on the cluster.  You think that 
still possible?



src/main/java/org/apache/hadoop/hbase/ipc/HRegionInterface.java
<https://reviews.apache.org/r/4993/#comment16663>

    Hurray!



src/main/java/org/apache/hadoop/hbase/protobuf/ProtobufUtil.java
<https://reviews.apache.org/r/4993/#comment16664>

    Is it going too far adding methods like this into protobufutils?  These 
methods seem pretty core hbase facility, too core to be out in a util method?   
You have them here because there is a bunch of pb'ing going on?
    
    I know I suggested that we move some of the transforms out here... but 
maybe this is taking it a bit far?
    
    What you reckon?



src/main/java/org/apache/hadoop/hbase/protobuf/ResponseConverter.java
<https://reviews.apache.org/r/4993/#comment16665>

    I think this kinda builder is a the right thing to have over in this util 
class.



src/main/java/org/apache/hadoop/hbase/regionserver/HRegionServer.java
<https://reviews.apache.org/r/4993/#comment16666>

    Like I said to Gregory last night, its kinda hard hiding this pb stuff when 
you are in the class that is slinging them.



src/main/java/org/apache/hadoop/hbase/regionserver/HRegionServer.java
<https://reviews.apache.org/r/4993/#comment16667>

    Is this new or moved code?



src/main/java/org/apache/hadoop/hbase/regionserver/RegionServer.java
<https://reviews.apache.org/r/4993/#comment16668>

    This was no longer a good idea?



src/main/protobuf/Admin.proto
<https://reviews.apache.org/r/4993/#comment16669>

    good



src/main/resources/hbase-default.xml
<https://reviews.apache.org/r/4993/#comment16670>

    good



src/test/java/org/apache/hadoop/hbase/coprocessor/TestMasterObserver.java
<https://reviews.apache.org/r/4993/#comment16671>

    It is unexpected going to ProtobufUtils to get online regions.



src/test/java/org/apache/hadoop/hbase/master/TestMasterFailover.java
<https://reviews.apache.org/r/4993/#comment16672>

    ditto


- Michael


On 2012-05-03 17:27:50, Jimmy Xiang wrote:
bq.  
bq.  -----------------------------------------------------------
bq.  This is an automatically generated e-mail. To reply, visit:
bq.  https://reviews.apache.org/r/4993/
bq.  -----------------------------------------------------------
bq.  
bq.  (Updated 2012-05-03 17:27:50)
bq.  
bq.  
bq.  Review request for hbase.
bq.  
bq.  
bq.  Summary
bq.  -------
bq.  
bq.  Removed HRegionInterface, and cleaned up the HRegionServer, moved pb code 
from RegionServer back to HRegionServer.
bq.  
bq.  The goal is to avoid two copies of region server code to maintain, and 
make it possible to avoid data type conversion in the sever side.
bq.  
bq.  Fixed some unit tests.  Now all region server unit tests test the new pb 
functions.
bq.  
bq.  Enhanced getServerInfo so that it returns the webui port too.
bq.  
bq.  
bq.  This addresses bug HBASE-5889.
bq.      https://issues.apache.org/jira/browse/HBASE-5889
bq.  
bq.  
bq.  Diffs
bq.  -----
bq.  
bq.    conf/hbase-policy.xml e45f23c 
bq.    
security/src/main/java/org/apache/hadoop/hbase/security/HBasePolicyProvider.java
 0c4b4cb 
bq.    
src/main/jamon/org/apache/hadoop/hbase/tmpl/regionserver/RSStatusTmpl.jamon 
87f04f4 
bq.    src/main/java/org/apache/hadoop/hbase/HConstants.java a9d80a0 
bq.    src/main/java/org/apache/hadoop/hbase/client/HBaseAdmin.java e3912c2 
bq.    src/main/java/org/apache/hadoop/hbase/ipc/HBaseRpcMetrics.java fc9176d 
bq.    src/main/java/org/apache/hadoop/hbase/ipc/HRegionInterface.java 757f98e 
bq.    src/main/java/org/apache/hadoop/hbase/mapreduce/TableOutputFormat.java 
cd9b528 
bq.    src/main/java/org/apache/hadoop/hbase/master/CatalogJanitor.java 79d5fdd 
bq.    src/main/java/org/apache/hadoop/hbase/protobuf/ProtobufUtil.java 212ee3e 
bq.    src/main/java/org/apache/hadoop/hbase/protobuf/RequestConverter.java 
d1e0993 
bq.    src/main/java/org/apache/hadoop/hbase/protobuf/ResponseConverter.java 
81603af 
bq.    
src/main/java/org/apache/hadoop/hbase/protobuf/generated/AdminProtos.java 
fbf0127 
bq.    
src/main/java/org/apache/hadoop/hbase/protobuf/generated/ClientProtos.java 
db1333b 
bq.    
src/main/java/org/apache/hadoop/hbase/protobuf/generated/HBaseProtos.java 
ae2094d 
bq.    src/main/java/org/apache/hadoop/hbase/protobuf/generated/RPCProtos.java 
8b45f03 
bq.    
src/main/java/org/apache/hadoop/hbase/protobuf/generated/ZooKeeperProtos.java 
827fb23 
bq.    src/main/java/org/apache/hadoop/hbase/regionserver/HRegionServer.java 
96ac8bd 
bq.    
src/main/java/org/apache/hadoop/hbase/regionserver/HRegionThriftServer.java 
4cb070e 
bq.    src/main/java/org/apache/hadoop/hbase/regionserver/RegionServer.java 
c2c89ea 
bq.    src/main/protobuf/Admin.proto 2ad6fb0 
bq.    src/main/protobuf/RPC.proto 105fb3f 
bq.    src/main/resources/hbase-default.xml f54b345 
bq.    src/main/resources/hbase-webapps/master/table.jsp ca7310c 
bq.    src/test/java/org/apache/hadoop/hbase/TestDrainingServer.java a1992c3 
bq.    src/test/java/org/apache/hadoop/hbase/TestGlobalMemStoreSize.java 
ad77e0a 
bq.    src/test/java/org/apache/hadoop/hbase/TestRegionRebalancing.java 5574b7f 
bq.    src/test/java/org/apache/hadoop/hbase/catalog/TestCatalogTracker.java 
3dfc94e 
bq.    
src/test/java/org/apache/hadoop/hbase/client/HConnectionTestingUtility.java 
42092b7 
bq.    src/test/java/org/apache/hadoop/hbase/client/TestAdmin.java c270e28 
bq.    src/test/java/org/apache/hadoop/hbase/client/TestMultiParallel.java 
c36272f 
bq.    
src/test/java/org/apache/hadoop/hbase/coprocessor/TestMasterObserver.java 
bdec3ee 
bq.    
src/test/java/org/apache/hadoop/hbase/coprocessor/TestRegionObserverInterface.java
 7dbba66 
bq.    
src/test/java/org/apache/hadoop/hbase/mapreduce/TestLoadIncrementalHFilesSplitRecovery.java
 3acb988 
bq.    
src/test/java/org/apache/hadoop/hbase/master/TestDistributedLogSplitting.java 
eb546a5 
bq.    src/test/java/org/apache/hadoop/hbase/master/TestMasterFailover.java 
ceba5cd 
bq.    
src/test/java/org/apache/hadoop/hbase/master/TestMasterRestartAfterDisablingTable.java
 ec08b17 
bq.    src/test/java/org/apache/hadoop/hbase/master/TestRollingRestart.java 
30c6cf1 
bq.    
src/test/java/org/apache/hadoop/hbase/master/TestZKBasedOpenCloseRegion.java 
8c3f67e 
bq.    
src/test/java/org/apache/hadoop/hbase/regionserver/TestEndToEndSplitTransaction.java
 7bfe4cd 
bq.    
src/test/java/org/apache/hadoop/hbase/regionserver/TestRSStatusServlet.java 
ffce7e8 
bq.    
src/test/java/org/apache/hadoop/hbase/regionserver/TestRegionServerMetrics.java 
aa5ca37 
bq.    
src/test/java/org/apache/hadoop/hbase/regionserver/TestSplitTransactionOnCluster.java
 65fa948 
bq.    src/test/java/org/apache/hadoop/hbase/util/TestHBaseFsck.java fc4a0a7 
bq.  
bq.  Diff: https://reviews.apache.org/r/4993/diff
bq.  
bq.  
bq.  Testing
bq.  -------
bq.  
bq.  All regular and security profile tests are green before I rebased to the 
latest today.
bq.  
bq.  
bq.  Thanks,
bq.  
bq.  Jimmy
bq.  
bq.


                
> Remove HRegionInterface
> -----------------------
>
>                 Key: HBASE-5889
>                 URL: https://issues.apache.org/jira/browse/HBASE-5889
>             Project: HBase
>          Issue Type: Improvement
>          Components: client, ipc, regionserver
>    Affects Versions: 0.96.0
>            Reporter: Jimmy Xiang
>            Assignee: Jimmy Xiang
>             Fix For: 0.96.0
>
>         Attachments: hbase_5889.patch, hbase_5889_v2.patch
>
>
> As a step to move internals to PB, so as to avoid the conversion for 
> performance reason, we should remove the HRegionInterface. 
> Therefore region server only supports ClientProtocol and AdminProtocol.  
> Later on, HRegion can work with PB messages directly.

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