[Bug] HStore partition leader changes cause P99 latency jitter in the cluster's read and write operations

Open
#2,763 3 comments 0 reactions 1 assignee View on GitHub

@JackyYangPassion is already working on this.

Since May 9, 2025.

Assessment

This issue has not been assessed yet.

Description

bug good first issue
Bug Type (问题类型)

None

Before submit
  • 我已经确认现有的 IssuesFAQ 中没有相同 / 重复问题 (I have confirmed and searched that there are no similar problems in the historical issue and documents)
Environment (环境信息)
  • Server Version: 1.5.0 (Apache Release Version)
  • Backend: HStore, SSD
  • OS: 32 CPUs, 128 G RAM, CentOS 7
  • Data Size: 1 billion vertices, 3 billion edges
Expected & Actual behavior (期望与实际表现)

Monitor

read

Image

write

Image

从监控看 节点A 出现了问题

HugeServer Log 节点A

server.log

HStore Log

Store.log

PD Log

2025-05-09 04:53:53 [grpc-default-worker-ELG-3-5] [INFO] i.g.n.s.i.g.n.N.connections - Transport failed
io.grpc.netty.shaded.io.netty.handler.codec.http2.Http2Exception: HTTP/2 client preface string missing or corrupt. Hex dump for received bytes: 16030101300100012c03037d2ea24fb94c70eca27879a1b7
        at io.grpc.netty.shaded.io.netty.handler.codec.http2.Http2Exception.connectionError(Http2Exception.java:103) ~[grpc-netty-shaded-1.39.0.jar!/:1.39.0]
        at io.grpc.netty.shaded.io.netty.handler.codec.http2.Http2ConnectionHandler$PrefaceDecoder.readClientPrefaceString(Http2ConnectionHandler.java:306) ~[grpc-netty-shaded-1.39.0.jar!/:1.39.0]
        at io.grpc.netty.shaded.io.netty.handler.codec.http2.Http2ConnectionHandler$PrefaceDecoder.decode(Http2ConnectionHandler.java:239) ~[grpc-netty-shaded-1.39.0.jar!/:1.39.0]
        at io.grpc.netty.shaded.io.netty.handler.codec.http2.Http2ConnectionHandler.decode(Http2ConnectionHandler.java:438) ~[grpc-netty-shaded-1.39.0.jar!/:1.39.0]
        at io.grpc.netty.shaded.io.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(ByteToMessageDecoder.java:501) ~[grpc-netty-shaded-1.39.0.jar!/:1.39.0]
        at io.grpc.netty.shaded.io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:440) ~[grpc-netty-shaded-1.39.0.jar!/:1.39.0]
        at io.grpc.netty.shaded.io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:276) ~[grpc-netty-shaded-1.39.0.jar!/:1.39.0]
        at io.grpc.netty.shaded.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[grpc-netty-shaded-1.39.0.jar!/:1.39.0]
        at io.grpc.netty.shaded.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) ~[grpc-netty-shaded-1.39.0.jar!/:1.39.0]
        at io.grpc.netty.shaded.io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) ~[grpc-netty-shaded-1.39.0.jar!/:1.39.0]
        at io.grpc.netty.shaded.io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410) ~[grpc-netty-shaded-1.39.0.jar!/:1.39.0]
        at io.grpc.netty.shaded.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[grpc-netty-shaded-1.39.0.jar!/:1.39.0]
        at io.grpc.netty.shaded.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) ~[grpc-netty-shaded-1.39.0.jar!/:1.39.0]
        at io.grpc.netty.shaded.io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919) ~[grpc-netty-shaded-1.39.0.jar!/:1.39.0]
        at io.grpc.netty.shaded.io.netty.channel.epoll.AbstractEpollStreamChannel$EpollStreamUnsafe.epollInReady(AbstractEpollStreamChannel.java:795) ~[grpc-netty-shaded-1.39.0.jar!/:1.39.0]
        at io.grpc.netty.shaded.io.netty.channel.epoll.EpollEventLoop.processReady(EpollEventLoop.java:475) ~[grpc-netty-shaded-1.39.0.jar!/:1.39.0]
        at io.grpc.netty.shaded.io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:378) ~[grpc-netty-shaded-1.39.0.jar!/:1.39.0]
        at io.grpc.netty.shaded.io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989) ~[grpc-netty-shaded-1.39.0.jar!/:1.39.0]
        at io.grpc.netty.shaded.io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[grpc-netty-shaded-1.39.0.jar!/:1.39.0]
        at io.grpc.netty.shaded.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[grpc-netty-shaded-1.39.0.jar!/:1.39.0]
        at java.lang.Thread.run(Thread.java:834) ~[?:?]
2025-05-09 04:54:03 [grpc-default-worker-ELG-3-7] [INFO] i.g.n.s.i.g.n.N.connections - Transport failed
io.grpc.netty.shaded.io.netty.handler.codec.http2.Http2Exception: Unexpected HTTP/1.x request: GET /
        at io.grpc.netty.shaded.io.netty.handler.codec.http2.Http2Exception.connectionError(Http2Exception.java:103) ~[grpc-netty-shaded-1.39.0.jar!/:1.39.0]
        at io.grpc.netty.shaded.io.netty.handler.codec.http2.Http2ConnectionHandler$PrefaceDecoder.readClientPrefaceString(Http2ConnectionHandler.java:302) ~[grpc-netty-shaded-1.39.0.jar!/:1.39.0]
        at io.grpc.netty.shaded.io.netty.handler.codec.http2.Http2ConnectionHandler$PrefaceDecoder.decode(Http2ConnectionHandler.java:239) ~[grpc-netty-shaded-1.39.0.jar!/:1.39.0]
        at io.grpc.netty.shaded.io.netty.handler.codec.http2.Http2ConnectionHandler.decode(Http2ConnectionHandler.java:438) ~[grpc-netty-shaded-1.39.0.jar!/:1.39.0]
        at io.grpc.netty.shaded.io.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(ByteToMessageDecoder.java:501) ~[grpc-netty-shaded-1.39.0.jar!/:1.39.0]
        at io.grpc.netty.shaded.io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:440) ~[grpc-netty-shaded-1.39.0.jar!/:1.39.0]
        at io.grpc.netty.shaded.io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:276) ~[grpc-netty-shaded-1.39.0.jar!/:1.39.0]
        at io.grpc.netty.shaded.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[grpc-netty-shaded-1.39.0.jar!/:1.39.0]
        at io.grpc.netty.shaded.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) ~[grpc-netty-shaded-1.39.0.jar!/:1.39.0]
        at io.grpc.netty.shaded.io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) ~[grpc-netty-shaded-1.39.0.jar!/:1.39.0]
        at io.grpc.netty.shaded.io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410) ~[grpc-netty-shaded-1.39.0.jar!/:1.39.0]
        at io.grpc.netty.shaded.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[grpc-netty-shaded-1.39.0.jar!/:1.39.0]
        at io.grpc.netty.shaded.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) ~[grpc-netty-shaded-1.39.0.jar!/:1.39.0]
        at io.grpc.netty.shaded.io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919) ~[grpc-netty-shaded-1.39.0.jar!/:1.39.0]
        at io.grpc.netty.shaded.io.netty.channel.epoll.AbstractEpollStreamChannel$EpollStreamUnsafe.epollInReady(AbstractEpollStreamChannel.java:795) ~[grpc-netty-shaded-1.39.0.jar!/:1.39.0]
        at io.grpc.netty.shaded.io.netty.channel.epoll.EpollEventLoop.processReady(EpollEventLoop.java:475) ~[grpc-netty-shaded-1.39.0.jar!/:1.39.0]
        at io.grpc.netty.shaded.io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:378) ~[grpc-netty-shaded-1.39.0.jar!/:1.39.0]
        at io.grpc.netty.shaded.io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989) ~[grpc-netty-shaded-1.39.0.jar!/:1.39.0]
        at io.grpc.netty.shaded.io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[grpc-netty-shaded-1.39.0.jar!/:1.39.0]
        at io.grpc.netty.shaded.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[grpc-netty-shaded-1.39.0.jar!/:1.39.0]
        at java.lang.Thread.run(Thread.java:834) ~[?:?]

Dominant language
Java
Stars
3.2k
Forks
637
Avg merge
3d 18h
Merged PRs (30d)
23

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

More from apache/hugegraph

All issues in apache/hugegraph

Similar issues

More Java issues

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.