[close #634] fix rawBatchPut hang while batch size is larger than MAX_RAW_BATCH_LIMIT

[iosmanthus]

Signed-off-by: iosmanthus myosmanthustree@gmail.com

What problem does this PR solve?

Issue Number: close #634

Problem Description:

The following code will hang in the master:

HashMap<ByteString, ByteString> kvs = new HashMap<>();
for (int i = 0; i < MAX_RAW_BATCH_LIMIT * 4; i++) {
  kvs.put(prefix.concat(ByteString.copyFromUtf8("key@" + i)), rawValue("value@" + i));
}
client.batchPut(kvs);

What is changed and how does it work?

The code is dislocation while cherry picks other commits from release-3.1

Check List for Tests

This PR has been tested by at least one of the following methods:

• Unit test
• Integration test

Related changes

• Need to cherry-pick the release branch

[codecov]

Codecov Report

Merging #640 (e2406e0) into master (3128161) will increase coverage by 0.28%.
The diff coverage is 55.55%.

@@             Coverage Diff              @@
##             master     #640      +/-   ##
============================================
+ Coverage     34.98%   35.27%   +0.28%     
- Complexity     1435     1446      +11     
============================================
  Files           278      278              
  Lines         17361    17362       +1     
  Branches       1974     1974              
============================================
+ Hits           6074     6124      +50     
+ Misses        10677    10622      -55     
- Partials        610      616       +6     

Impacted Files	Coverage Δ
src/main/java/org/tikv/raw/RawKVClient.java	75.27% <55.55%> (+0.35%)	⬆️
src/main/java/io/grpc/internal/ClientCallImpl.java	56.34% <0.00%> (-0.25%)	⬇️
src/main/java/org/tikv/common/log/SlowLogImpl.java	98.52% <0.00%> (+1.47%)	⬆️
.../main/java/org/tikv/common/region/RegionCache.java	50.92% <0.00%> (+1.85%)	⬆️
...g/tikv/common/operation/iterator/ScanIterator.java	78.94% <0.00%> (+2.63%)	⬆️
...va/org/tikv/common/region/StoreHealthyChecker.java	75.94% <0.00%> (+6.32%)	⬆️
...rc/main/java/io/grpc/netty/NettyClientHandler.java	64.22% <0.00%> (+7.32%)	⬆️
src/main/java/org/tikv/common/region/TiStore.java	74.35% <0.00%> (+12.82%)	⬆️

---

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[ti-srebot]

@xuanyu66, Thanks for your review. The bot only counts LGTMs from Reviewers and higher roles, but you're still welcome to leave your comments. You are not a reviewer or committer or co-leader or leader.

[ti-srebot]

cherry pick to release-3.3 in PR #641