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https://issues.apache.org/jira/browse/ARTEMIS-2496?focusedWorklogId=314436&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-314436
]
ASF GitHub Bot logged work on ARTEMIS-2496:
-------------------------------------------
Author: ASF GitHub Bot
Created on: 18/Sep/19 16:18
Start Date: 18/Sep/19 16:18
Worklog Time Spent: 10m
Work Description: franz1981 commented on issue #2843: ARTEMIS-2496 Revert
catch up with zero-copy, as it's causing issues i…
URL: https://github.com/apache/activemq-artemis/pull/2843#issuecomment-532758809
@wy96f We are actually receiving (and sending) several 0s on the wire (via
xnio on wildfly, that will wrap the replication connection as a HTTP one), that
would break backup with a IIOBE:
```
2019-09-18 18:08:14,889 ERROR [org.apache.activemq.artemis.core.client]
(Thread-5 (ActiveMQ-client-netty-threads)) AMQ214013: Failed to decode packet:
java.lang.IndexOutOfBoundsException: readerIndex(4) + length(1) exceeds
writerIndex(4): PooledUnsafeDirectByteBuf(ridx: 4, widx: 4, cap: 4)
at
io.netty.buffer.AbstractByteBuf.checkReadableBytes0(AbstractByteBuf.java:1428)
at io.netty.buffer.AbstractByteBuf.readByte(AbstractByteBuf.java:723)
at io.netty.buffer.WrappedByteBuf.readByte(WrappedByteBuf.java:521)
at
org.apache.activemq.artemis.core.buffers.impl.ChannelBufferWrapper.readByte(ChannelBufferWrapper.java:280)
at
org.apache.activemq.artemis.core.protocol.ServerPacketDecoder.decode(ServerPacketDecoder.java:126)
at
org.apache.activemq.artemis.core.protocol.core.impl.RemotingConnectionImpl.bufferReceived(RemotingConnectionImpl.java:377)
at
org.apache.activemq.artemis.core.client.impl.ClientSessionFactoryImpl$DelegatingBufferHandler.bufferReceived(ClientSessionFactoryImpl.java:1198)
at
org.apache.activemq.artemis.core.remoting.impl.netty.ActiveMQChannelHandler.channelRead(ActiveMQChannelHandler.java:73)
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:359)
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:345)
at
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:337)
at
io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:323)
at
io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:310)
at
io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:426)
at
io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:278)
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:359)
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:345)
at
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:337)
at
io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1408)
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:359)
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:345)
at
io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:930)
at
io.netty.channel.epoll.AbstractEpollStreamChannel$EpollStreamUnsafe.epollInReady(AbstractEpollStreamChannel.java:796)
at
io.netty.channel.epoll.EpollEventLoop.processReady(EpollEventLoop.java:427)
at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:328)
at
io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:905)
at
org.apache.activemq.artemis.utils.ActiveMQThreadFactory$1.run(ActiveMQThreadFactory.java:118)
2019-09-18 18:08:14,893 ERROR [org.apache.activemq.artemis.core.client]
(Thread-5 (ActiveMQ-client-netty-threads)) AMQ214031: Failed to decode buffer,
disconnect immediately.: java.lang.IllegalStateException:
java.lang.IndexOutOfBoundsException: readerIndex(4) + length(1) exceeds
writerIndex(4): PooledUnsafeDirectByteBuf(ridx: 4, widx: 4, cap: 4)
at
org.apache.activemq.artemis.core.protocol.core.impl.RemotingConnectionImpl.bufferReceived(RemotingConnectionImpl.java:390)
at
org.apache.activemq.artemis.core.client.impl.ClientSessionFactoryImpl$DelegatingBufferHandler.bufferReceived(ClientSessionFactoryImpl.java:1198)
at
org.apache.activemq.artemis.core.remoting.impl.netty.ActiveMQChannelHandler.channelRead(ActiveMQChannelHandler.java:73)
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:359)
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:345)
at
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:337)
at
io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:323)
at
io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:310)
at
io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:426)
at
io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:278)
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:359)
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:345)
at
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:337)
at
io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1408)
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:359)
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:345)
at
io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:930)
at
io.netty.channel.epoll.AbstractEpollStreamChannel$EpollStreamUnsafe.epollInReady(AbstractEpollStreamChannel.java:796)
at
io.netty.channel.epoll.EpollEventLoop.processReady(EpollEventLoop.java:427)
at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:328)
at
io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:905)
at
org.apache.activemq.artemis.utils.ActiveMQThreadFactory$1.run(ActiveMQThreadFactory.java:118)
Caused by: java.lang.IndexOutOfBoundsException: readerIndex(4) + length(1)
exceeds writerIndex(4): PooledUnsafeDirectByteBuf(ridx: 4, widx: 4, cap: 4)
at
io.netty.buffer.AbstractByteBuf.checkReadableBytes0(AbstractByteBuf.java:1428)
at io.netty.buffer.AbstractByteBuf.readByte(AbstractByteBuf.java:723)
at io.netty.buffer.WrappedByteBuf.readByte(WrappedByteBuf.java:521)
at
org.apache.activemq.artemis.core.buffers.impl.ChannelBufferWrapper.readByte(ChannelBufferWrapper.java:280)
at
org.apache.activemq.artemis.core.protocol.ServerPacketDecoder.decode(ServerPacketDecoder.java:126)
at
org.apache.activemq.artemis.core.protocol.core.impl.RemotingConnectionImpl.bufferReceived(RemotingConnectionImpl.java:377)
... 21 more
```
Just reverting this change will make it work, so would be better to work on
it to see what/where is broken first
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Issue Time Tracking
-------------------
Worklog Id: (was: 314436)
Time Spent: 20m (was: 10m)
> Use of Netty FileRegion on ReplicationCatch is breaking wildfly integration
> with artemis
> ----------------------------------------------------------------------------------------
>
> Key: ARTEMIS-2496
> URL: https://issues.apache.org/jira/browse/ARTEMIS-2496
> Project: ActiveMQ Artemis
> Issue Type: Bug
> Affects Versions: 2.10.0
> Reporter: clebert suconic
> Assignee: clebert suconic
> Priority: Major
> Fix For: 2.11.0
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> This is of course an issue on Wildfly integration, but it seems something on
> our recent changes is breaking replication on Wildfly.
> My biggest concern is that it seems that paging catch up is silently failing
> in our testsuite and some other issues are currently hidden.
> Wildfly has an extra layer on top of Netty:
> https://github.com/xnio/netty-xnio-transport/tree/0.1
> But the main thing here, is that it seems that are other issues within
> Artemis.
> For now I'm reverting the change from ARTEMIS-2336
> And we need more investigation to bring it back
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