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https://issues.apache.org/jira/browse/HBASE-28584?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17848778#comment-17848778
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David Manning edited comment on HBASE-28584 at 5/22/24 11:57 PM:
-----------------------------------------------------------------
We see it too in HBASE-28437. We have hbase.region.store.parallel.put.limit=0,
but that is also the default in 2.5 after HBASE-26814. For us it always
correlates with a lot of load that shows up suddenly, and then replicates to a
peer cluster, and that peer cluster throws RegionTooBusyExceptions
(blockedRequestCount metric.)
was (Author: dmanning):
We see it too. We have hbase.region.store.parallel.put.limit=0, but that is
also the default in 2.5 after HBASE-26814. For us it always correlates with a
lot of load that shows up suddenly, and then replicates to a peer cluster, and
that peer cluster throws RegionTooBusyExceptions (blockedRequestCount metric.)
> RS SIGSEGV under heavy replication load
> ---------------------------------------
>
> Key: HBASE-28584
> URL: https://issues.apache.org/jira/browse/HBASE-28584
> Project: HBase
> Issue Type: Bug
> Components: regionserver
> Affects Versions: 2.5.6
> Environment: RHEL 7.9
> JDK 11.0.23
> Hadoop 3.2.4
> Hbase 2.5.6
> Reporter: Whitney Jackson
> Priority: Major
>
> I'm observing RS crashes under heavy replication load:
>
> {code:java}
> #
> # A fatal error has been detected by the Java Runtime Environment:
> #
> # SIGSEGV (0xb) at pc=0x00007f7546873b69, pid=29890, tid=36828
> #
> # JRE version: Java(TM) SE Runtime Environment 18.9 (11.0.23+7) (build
> 11.0.23+7-LTS-222)
> # Java VM: Java HotSpot(TM) 64-Bit Server VM 18.9 (11.0.23+7-LTS-222, mixed
> mode, tiered, compressed oops, g1 gc, linux-amd64)
> # Problematic frame:
> # J 24625 c2
> org.apache.hadoop.hbase.util.ByteBufferUtils.copyBufferToStream(Ljava/io/OutputStream;Ljava/nio/ByteBuffer;II)V
> (75 bytes) @ 0x00007f7546873b69 [0x00007f7546873960+0x0000000000000209]
> {code}
>
> The heavier load comes when a replication peer has been disabled for several
> hours for patching etc. When the peer is re-enabled the replication load is
> high until the peer is all caught up. The crashes happen on the cluster
> receiving the replication edits.
>
> I believe this problem started after upgrading from 2.4.x to 2.5.x.
>
> One possibly relevant non-standard config I run with:
> {code:java}
> <property>
> <name>hbase.region.store.parallel.put.limit</name>
> <!-- Default: 10 -->
> <value>100</value>
> <description>Added after seeing "failed to accept edits" replication errors
> in the destination region servers indicating this limit was being exceeded
> while trying to process replication edits.</description>
> </property>
> {code}
>
> I understand from other Jiras that the problem is likely around direct memory
> usage by Netty. I haven't yet tried switching the Netty allocator to
> {{unpooled}} or {{{}heap{}}}. I also haven't yet tried any of the
> {{io.netty.allocator.*}} options.
>
> {{MaxDirectMemorySize}} is set to 26g.
>
> Here's the full stack for the relevant thread:
>
> {code:java}
> Stack: [0x00007f72e2e5f000,0x00007f72e2f60000], sp=0x00007f72e2f5e450, free
> space=1021k
> Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native
> code)
> J 24625 c2
> org.apache.hadoop.hbase.util.ByteBufferUtils.copyBufferToStream(Ljava/io/OutputStream;Ljava/nio/ByteBuffer;II)V
> (75 bytes) @ 0x00007f7546873b69 [0x00007f7546873960+0x0000000000000209]
> J 26253 c2
> org.apache.hadoop.hbase.ByteBufferKeyValue.write(Ljava/io/OutputStream;Z)I
> (21 bytes) @ 0x00007f7545af2d84 [0x00007f7545af2d20+0x0000000000000064]
> J 22971 c2
> org.apache.hadoop.hbase.codec.KeyValueCodecWithTags$KeyValueEncoder.write(Lorg/apache/hadoop/hbase/Cell;)V
> (27 bytes) @ 0x00007f754663f700 [0x00007f754663f4c0+0x0000000000000240]
> J 25251 c2
> org.apache.hadoop.hbase.ipc.NettyRpcDuplexHandler.write(Lorg/apache/hbase/thirdparty/io/netty/channel/ChannelHandlerContext;Ljava/lang/Object;Lorg/apache/hbase/thirdparty/io/netty/channel/ChannelPromise;)V
> (90 bytes) @ 0x00007f7546a53038 [0x00007f7546a50e60+0x00000000000021d8]
> J 21182 c2
> org.apache.hbase.thirdparty.io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(Ljava/lang/Object;Lorg/apache/hbase/thirdparty/io/netty/channel/ChannelPromise;)V
> (73 bytes) @ 0x00007f7545f4d90c [0x00007f7545f4d3a0+0x000000000000056c]
> J 21181 c2
> org.apache.hbase.thirdparty.io.netty.channel.AbstractChannelHandlerContext.write(Ljava/lang/Object;ZLorg/apache/hbase/thirdparty/io/netty/channel/ChannelPromise;)V
> (149 bytes) @ 0x00007f7545fd680c [0x00007f7545fd65e0+0x000000000000022c]
> J 25389 c2 org.apache.hadoop.hbase.ipc.NettyRpcConnection$$Lambda$247.run()V
> (16 bytes) @ 0x00007f7546ade660 [0x00007f7546ade140+0x0000000000000520]
> J 24098 c2
> org.apache.hbase.thirdparty.io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(J)Z
> (109 bytes) @ 0x00007f754678fbb8 [0x00007f754678f8e0+0x00000000000002d8]
> J 27297% c2
> org.apache.hbase.thirdparty.io.netty.channel.epoll.EpollEventLoop.run()V (603
> bytes) @ 0x00007f75466c4d48 [0x00007f75466c4c80+0x00000000000000c8]
> j
> org.apache.hbase.thirdparty.io.netty.util.concurrent.SingleThreadEventExecutor$4.run()V+44
> j
> org.apache.hbase.thirdparty.io.netty.util.internal.ThreadExecutorMap$2.run()V+11
> j
> org.apache.hbase.thirdparty.io.netty.util.concurrent.FastThreadLocalRunnable.run()V+4
> J 12278 c1 java.lang.Thread.run()V java.base@11.0.23 (17 bytes) @
> 0x00007f753e11f084 [0x00007f753e11ef40+0x0000000000000144]
> v ~StubRoutines::call_stub
> V [libjvm.so+0x85574a] JavaCalls::call_helper(JavaValue*, methodHandle
> const&, JavaCallArguments*, Thread*)+0x27a
> V [libjvm.so+0x853d2e] JavaCalls::call_virtual(JavaValue*, Handle, Klass*,
> Symbol*, Symbol*, Thread*)+0x19e
> V [libjvm.so+0x8ffddf] thread_entry(JavaThread*, Thread*)+0x9f
> V [libjvm.so+0xdb68d1] JavaThread::thread_main_inner()+0x131
> V [libjvm.so+0xdb2c4c] Thread::call_run()+0x13c
> V [libjvm.so+0xc1f2e6] thread_native_entry(Thread*)+0xe6
> {code}
>
>
>
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