This reverts commit 0ac5d4a717.
This is a revert of a revert; i.e. a reapplication!
Fixes for breakage that comes in with this patch is in a follow-on.
Rely on the new plugin to do all proto generation. No need of an
external protoc setup anymore. Mvn will do it all for you.
Updated all READMEs appropriately.
Signed-off-by: Michael Stack <stack@apache.org>
This patch changes poms to use protobuf-maven-plugin instaed of
hadoop-maven-plugins generating protos. Adds a few missing READMEs too
as well as purge of unused protos turned up by the new plugin.
Which includes
HBASE-16742 Add chapter for devs on how we do protobufs going forward
HBASE-16741 Amend the generate protobufs out-of-band build step
to include shade, pulling in protobuf source and a hook for patching protobuf
Removed ByteStringer from hbase-protocol-shaded. Use the protobuf-3.1.0
trick directly instead. Makes stuff cleaner. All under 'shaded' dir is
now generated.
HBASE-16567 Upgrade to protobuf-3.1.x
Regenerate all protos in this module with protoc3.
Redo ByteStringer to use new pb3.1.0 unsafebytesutil
instead of HBaseZeroCopyByteString
HBASE-16264 Figure how to deal with endpoints and shaded pb Shade our protobufs.
Do it in a manner that makes it so we can still have in our API references to
com.google.protobuf (and in REST). The c.g.p in API is for Coprocessor Endpoints (CPEP)
This patch is Tactic #4 from Shading Doc attached to the referenced issue.
Figuring an appoach took a while because we have Coprocessor Endpoints
mixed in with the core of HBase that are tough to untangle (FIX).
Tactic #4 (the fourth attempt at addressing this issue) is COPY all but
the CPEP .proto files currently in hbase-protocol to a new module named
hbase-protocol-shaded. Generate .protos again in the new location and
then relocate/shade the generated files. Let CPEPs keep on with the
old references at com.google.protobuf.* and
org.apache.hadoop.hbase.protobuf.* but change the hbase core so all
instead refer to the relocated files in their new location at
org.apache.hadoop.hbase.shaded.com.google.protobuf.*.
Let the new module also shade protobufs themselves and change hbase
core to pick up this shaded protobuf rather than directly reference
com.google.protobuf.
This approach allows us to explicitly refer to either the shaded or
non-shaded version of a protobuf class in any particular context (though
usually context dictates one or the other). Core runs on shaded protobuf.
CPEPs continue to use whatever is on the classpath with
com.google.protobuf.* which is pb2.5.0 for the near future at least.
See above cited doc for follow-ons and downsides. In short, IDEs will complain
about not being able to find the shaded protobufs since shading happens at package
time; will fix by checking in all generated classes and relocated protobuf in
a follow-on. Also, CPEPs currently suffer an extra-copy as marshalled from
non-shaded to shaded. To fix. Finally, our .protos are duplicated; once
shaded, and once not. Pain, but how else to reveal our protos to CPEPs or
C++ client that wants to talk with HBase AND shade protobuf.
Details:
Add a new hbase-protocol-shaded module. It is a copy of hbase-protocol
i with all relocated offset from o.a.h.h. to o.a.h.h.shaded. The new module
also includes the relocated pb. It does not include CPEPs. They stay in
their old location.
Add another module hbase-endpoint which has in it all the endpoints
that ship as part of hbase -- at least the ones that are not
entangled with core such as AccessControl and Auth. Move all protos
for these CPEPs here as well as their unit tests (mostly moving a
bunch of stuff out of hbase-server module)
Much of the change looks like this:
-import org.apache.hadoop.hbase.protobuf.ProtobufUtil;
-import org.apache.hadoop.hbase.protobuf.generated.ClusterIdProtos;
+import org.apache.hadoop.hbase.protobuf.shaded.ProtobufUtil;
+import org.apache.hadoop.hbase.shaded.protobuf.generated.ClusterIdProtos;
In HTable and in HBaseAdmin, regularize the way Callables are used and also hide
protobuf usage as much as possible moving it up into Callable super classes or out
to utility classes. Still TODO is adding in of retries, etc., but can wait on
procedure which will redo all this.
Also in HTable and HBaseAdmin as well as in HRegionServer and Server, be explicit
when using non-shaded protobuf. Do the full-path so it is clear. This is around
endpoint coprocessors registration of services and execution of CPEP methods.
Shrunk ProtobufUtil by moving methods used by one CPEP only back to the CPEP either
into Client class or as new Util class; e.g. AccessControlUtil.
There are actually two versions of ProtobufUtil now; a shaded one and a subset
that is used by CPEPs doing non-shaded work.
Made it so hbase-common no longer depends on hbase-protocol (with Matteo's help)
R*Converter classes got moved down under shaded package -- they are for internal
use only. There are no non-shaded versions of these classes.
D hbase-client/src/main/java/org/apache/hadoop/hbase/client/AbstractRegionServerCallable
D RetryingCallableBase
Not used anymore and we have too many tiers of Callables so removed/cleaned-up.
A ClientServicecallable
Had to add this one. RegionServerCallable was made generic so it could be used
for a few Interfaces (Client and Admin). Then added ClientServiceCallable to
implement RegionServerCallable with the Client Interface.
This is a revert of a revert; i.e. we are adding back the change only adding
back with fixes for the broken unit test; was a real issue on a test that
went in just at same time as this commit; I was getting a new nonce on each
retry rather than getting one for the mutation.
Other changes since revert are more hiding of RpcController. Use
accessor method rather than always pass in a RpcController
Walked back retrying operations that used to be single-shot (though
code comment said need a retry) because it opens a can of worms where
we retry stuff like bad column family when we shouldn't (needs
work adding in DoNotRetryIOEs)
Changed name of class from PayloadCarryingServerCallable to
CancellableRegionServerCallable.
Fix javadoc and findbugs warnings.
Fix case of not initializing the ScannerCallable RpcController.
Below is original commit message:
Remove mention of ServiceException and other protobuf classes from all over the codebase.
Purge TimeLimitedRpcController. Lets just have one override of RpcController.
M hbase-client/src/main/java/org/apache/hadoop/hbase/client/AbstractRegionServerCallable.java
Cleanup. Make it clear this is an odd class for async hbase intro.
M hbase-client/src/main/java/org/apache/hadoop/hbase/client/HTable.java
Refactor of RegionServerCallable allows me clean up a bunch of
boilerplate in here and remove protobuf references.
M hbase-client/src/main/java/org/apache/hadoop/hbase/client/HBaseAdmin.java
Purge protobuf references everywhere except a reference to a throw of a
ServiceException in method checkHBaseAvailable. I deprecated it in favor
of new available method (the SE is not actually needed)
M hbase-client/src/main/java/org/apache/hadoop/hbase/client/PayloadCarryingServerCallable.java
Move the RetryingTimeTracker instance in here from HTable.
Allows me to contain tracker and remove a repeated code in HTable.
M hbase-client/src/main/java/org/apache/hadoop/hbase/client/RegionServerCallable.java
Clean up move set up of rpc in here rather than have it repeat in HTable.
Allows me to remove protobuf references from a bunch of places.
M hbase-client/src/main/java/org/apache/hadoop/hbase/client/FlushRegionCallable.java
Make use of the push of boilerplate up into RegionServerCallable
M hbase-client/src/main/java/org/apache/hadoop/hbase/client/MultiServerCallable.java
M hbase-client/src/main/java/org/apache/hadoop/hbase/client/PayloadCarryingServerCallable.java
M hbase-client/src/main/java/org/apache/hadoop/hbase/client/RegionAdminServiceCallable.java
M hbase-client/src/main/java/org/apache/hadoop/hbase/client/RpcRetryingCallerWithReadReplicas.java
M hbase-client/src/main/java/org/apache/hadoop/hbase/client/ScannerCallable.java
M hbase-client/src/main/java/org/apache/hadoop/hbase/client/SecureBulkLoadClient.java
M hbase-server/src/main/java/org/apache/hadoop/hbase/mapreduce/LoadIncrementalHFiles.java
Move boilerplate up into superclass.
M hbase-client/src/main/java/org/apache/hadoop/hbase/client/RetryingTimeTracker.java
Cleanup
M hbase-client/src/main/java/org/apache/hadoop/hbase/ipc/PayloadCarryingRpcController.java
M hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/RSRpcServices.java
M hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/WALEditsReplaySink.java
M hbase-server/src/main/java/org/apache/hadoop/hbase/replication/regionserver/RegionReplicaReplicationEndpoint.java
Factor in TimeLimitedRpcController. Just have one RpcController override.
D hbase-client/src/main/java/org/apache/hadoop/hbase/ipc/TimeLimitedRpcController.java
Removed. Lets have one override of pb rpccontroller only.
M hbase-client/src/main/java/org/apache/hadoop/hbase/protobuf/ProtobufUtil.java
(handleRemoteException) added
(toText) added
Purge ServiceException from Callable subclasses by pushing SE handling
up into the parent Callable class (varies by context but this is basic
patten). Allows us remove a bunch of boilerplate.
Do this in the public facing classes in particular (though if
an API has SE in it -- which a few do, this patch leaves these
untouched -- for now.) Make it so HBaseAdmin and HTable have no
direct pb imports (except for endpoint processor API).
Change a few of the HBaseAdmin calls to be retrying where comments
ask that we do retry rather than one time.
Purge TimeLimitedRpcController. Lets just have one override of RpcController.
M hbase-client/src/main/java/org/apache/hadoop/hbase/client/AbstractRegionServerCallable.java
Cleanup. Make it clear this is an odd class for async hbase intro.
M hbase-client/src/main/java/org/apache/hadoop/hbase/client/HTable.java
Refactor of RegionServerCallable allows me clean up a bunch of
boilerplate in here and remove protobuf references.
M hbase-client/src/main/java/org/apache/hadoop/hbase/client/HBaseAdmin.java
Purge protobuf references everywhere except a reference to a throw of a
ServiceException in method checkHBaseAvailable. I deprecated it in favor
of new available method (the SE is not actually needed)
M hbase-client/src/main/java/org/apache/hadoop/hbase/client/PayloadCarryingServerCallable.java
Move the RetryingTimeTracker instance in here from HTable.
Allows me to contain tracker and remove a repeated code in HTable.
M hbase-client/src/main/java/org/apache/hadoop/hbase/client/RegionServerCallable.java
Clean up move set up of rpc in here rather than have it repeat in HTable.
Allows me to remove protobuf references from a bunch of places.
M hbase-client/src/main/java/org/apache/hadoop/hbase/client/FlushRegionCallable.java
Make use of the push of boilerplate up into RegionServerCallable
M hbase-client/src/main/java/org/apache/hadoop/hbase/client/MultiServerCallable.java
M hbase-client/src/main/java/org/apache/hadoop/hbase/client/PayloadCarryingServerCallable.java
M hbase-client/src/main/java/org/apache/hadoop/hbase/client/RegionAdminServiceCallable.java
M hbase-client/src/main/java/org/apache/hadoop/hbase/client/RpcRetryingCallerWithReadReplicas.java
M hbase-client/src/main/java/org/apache/hadoop/hbase/client/ScannerCallable.java
M hbase-client/src/main/java/org/apache/hadoop/hbase/client/SecureBulkLoadClient.java
M hbase-server/src/main/java/org/apache/hadoop/hbase/mapreduce/LoadIncrementalHFiles.java
Move boilerplate up into superclass.
M hbase-client/src/main/java/org/apache/hadoop/hbase/client/RetryingTimeTracker.java
Cleanup
M hbase-client/src/main/java/org/apache/hadoop/hbase/ipc/PayloadCarryingRpcController.java
M hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/RSRpcServices.java
M hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/WALEditsReplaySink.java
M hbase-server/src/main/java/org/apache/hadoop/hbase/replication/regionserver/RegionReplicaReplicationEndpoint.java
Factor in TimeLimitedRpcController. Just have one RpcController override.
D hbase-client/src/main/java/org/apache/hadoop/hbase/ipc/TimeLimitedRpcController.java
Removed. Lets have one override of pb rpccontroller only.
M hbase-client/src/main/java/org/apache/hadoop/hbase/protobuf/ProtobufUtil.java
(handleRemoteException) added
(toText) added
Signed-off-by: stack <stack@apache.org>
Jan Hentschel
Yi Liang
zhangduo
Xiang Li
tedyu
Jerry He
Andrew Purtell
Michael Stack
chetkhatri
Yang Guang
Yu Li
Sean Busbey
Apekshit
Jurriaan Mous
Jonathan M Hsieh