vin01 created CASSANDRA-12156:
---------------------------------
Summary: java.lang.ClassCastException During Write Operations
Key: CASSANDRA-12156
URL: https://issues.apache.org/jira/browse/CASSANDRA-12156
Project: Cassandra
Issue Type: Bug
Components: Core
Environment: Centos 6.7, JDK1.8.0_72, Cassandra 3.0.7
Reporter: vin01
During a regular ETL process today suddenly i am getting some errors from
cassandra which look like :-
ERROR [SharedPool-Worker-28] 2016-07-09 00:07:04,062 Message.java:611 -
Unexpected exception during request; channel = [id: 0x7e101236,
/ip.add.re.ss:36421 => /ip.add.re.ss:9044]
io.netty.handler.codec.DecoderException: java.lang.ClassCastException:
java.lang.String cannot be cast to [B
at
io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:99)
~[netty-all-4.0.23.Final.jar:4.0.23.Final]
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333)
~[netty-all-4.0.23.Final.jar:4.0.23.Final]
at
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319)
~[netty-all-4.0.23.Final.jar:4.0.23.Final]
at
io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:163)
~[netty-all-4.0.23.Final.jar:4.0.23.Final]
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333)
~[netty-all-4.0.23.Final.jar:4.0.23.Final]
at
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319)
~[netty-all-4.0.23.Final.jar:4.0.23.Final]
at io.netty.handler.ssl.SslHandler.unwrap(SslHandler.java:971)
~[netty-all-4.0.23.Final.jar:4.0.23.Final]
at io.netty.handler.ssl.SslHandler.decode(SslHandler.java:854)
~[netty-all-4.0.23.Final.jar:4.0.23.Final]
at
io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:249)
~[netty-all-4.0.23.Final.jar:4.0.23.Final]
at
io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:149)
~[netty-all-4.0.23.Final.jar:4.0.23.Final]
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333)
~[netty-all-4.0.23.Final.jar:4.0.23.Final]
at
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319)
~[netty-all-4.0.23.Final.jar:4.0.23.Final]
at
io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:787)
~[netty-all-4.0.23.Final.jar:4.0.23.Final]
at
io.netty.channel.epoll.EpollSocketChannel$EpollSocketUnsafe.epollInReady(EpollSocketChannel.java:722)
~[netty-all-4.0.23.Final.jar:4.0.23.Final]
at
io.netty.channel.epoll.EpollEventLoop.processReady(EpollEventLoop.java:326)
~[netty-all-4.0.23.Final.jar:4.0.23.Final]
at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:264)
~[netty-all-4.0.23.Final.jar:4.0.23.Final]
at
io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:116)
~[netty-all-4.0.23.Final.jar:4.0.23.Final]
at
io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:137)
~[netty-all-4.0.23.Final.jar:4.0.23.Final]
at java.lang.Thread.run(Thread.java:745) [na:1.8.0_72]
Caused by: java.lang.ClassCastException: java.lang.String cannot be cast to [B
at io.netty.buffer.PooledHeapByteBuf.array(PooledHeapByteBuf.java:280)
~[netty-all-4.0.23.Final.jar:4.0.23.Final]
at
org.apache.cassandra.transport.FrameCompressor$LZ4Compressor.decompress(FrameCompressor.java:191)
~[apache-cassandra-3.0.7.jar:3.0.7]
at
org.apache.cassandra.transport.Frame$Decompressor.decode(Frame.java:310)
~[apache-cassandra-3.0.7.jar:3.0.7]
at
org.apache.cassandra.transport.Frame$Decompressor.decode(Frame.java:289)
~[apache-cassandra-3.0.7.jar:3.0.7]
at
io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:89)
~[netty-all-4.0.23.Final.jar:4.0.23.Final]
... 18 common frames omitted
it didn't affect the application though but i haven't seen it before and seems
like something is wrong.
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