Yan Zhao

***Describe the bug*** Recently, we encounter an issue. The bookie request sometimes timedout. Below is the log info: ``` May 11 05:11:36 pulsar[9742]: 05:11:36.586 [pulsar-io-4-8] INFO org.apache.bookkeeper.proto.PerChannelBookieClient - Successfully connected...

Question about AddFile dataChange flag.

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A question about flag dataChange in the AddFile , the flag dataChange in txn log is true . But in the program, the value is false . Is it a...

**FEATURE REQUEST** 1. Please describe the feature you are requesting. ``` public void processResponseCommand(ChannelHandlerContext ctx, RemotingCommand cmd) { final int opaque = cmd.getOpaque(); final ResponseFuture responseFuture = responseTable.get(opaque); if (responseFuture...

Before: ``` session 0x1000017f0b701dc cxid 0x1 zxid 0x3208 multi error:����;error:����;error:���� ``` After: ``` session 0x1000017f0b701dc cxid 0x1 zxid 0x3208 multi error:-101;error:-2;error:-2 ```

[Branch 4.14] Fix potential memory leak.

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Descriptions of the changes in this PR: cherry-pick from #3525.

Fix memory leak when reading entry but the connection disconnected.

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Descriptions of the changes in this PR: Fixes-#3527

Direct memory leak of V2 protocol ReadResponse

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**BUG REPORT** Recently, in our customer product, we found that the bookie direct memory increases slowly over time, finally it throws netty allocate direct memory failed exception, then bookie restart....

AVRO-3138: Reflect data get fields support not order by property name

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In some cases, we hope that the reflect fields order maintain the original order. ``` class Pojo { String f2; String f1; } ``` At client, it create Pojo and...

This PR is based on #2115, please merge it first.