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https://issues.apache.org/jira/browse/CASSANDRA-10984?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15214176#comment-15214176
 ] 

Vassil Lunchev edited comment on CASSANDRA-10984 at 3/28/16 1:17 PM:
---------------------------------------------------------------------

I am having a very similar problem with cassandra-driver-core 3.0.0 and Google 
Dataflow. Deploying to Dataflow sometimes works, sometimes gives the netty 
exception:

{code:java}
"java.lang.NoSuchMethodError: 
io.netty.util.internal.PlatformDependent.newLongCounter()Lio/netty/util/internal/LongCounter;
        at io.netty.buffer.PoolArena.<init>(PoolArena.java:64)
        at io.netty.buffer.PoolArena$HeapArena.<init>(PoolArena.java:593)
        at 
io.netty.buffer.PooledByteBufAllocator.<init>(PooledByteBufAllocator.java:179)
        at 
io.netty.buffer.PooledByteBufAllocator.<init>(PooledByteBufAllocator.java:153)
        at 
io.netty.buffer.PooledByteBufAllocator.<init>(PooledByteBufAllocator.java:145)
        at 
io.netty.buffer.PooledByteBufAllocator.<clinit>(PooledByteBufAllocator.java:128)
        at 
com.datastax.driver.core.NettyOptions.afterBootstrapInitialized(NettyOptions.java:141)
        at 
com.datastax.driver.core.Connection$Factory.newBootstrap(Connection.java:825)
        at 
com.datastax.driver.core.Connection$Factory.access$100(Connection.java:677)
        at com.datastax.driver.core.Connection.initAsync(Connection.java:129)
        at com.datastax.driver.core.Connection$Factory.open(Connection.java:731)
        at 
com.datastax.driver.core.ControlConnection.tryConnect(ControlConnection.java:251)
        at 
com.datastax.driver.core.ControlConnection.reconnectInternal(ControlConnection.java:199)
        at 
com.datastax.driver.core.ControlConnection.connect(ControlConnection.java:77)
        at com.datastax.driver.core.Cluster$Manager.init(Cluster.java:1414)
        at com.datastax.driver.core.Cluster.init(Cluster.java:162)
        at com.datastax.driver.core.Cluster.connectAsync(Cluster.java:333)
        at com.datastax.driver.core.Cluster.connectAsync(Cluster.java:308)
        at com.datastax.driver.core.Cluster.connect(Cluster.java:250)
{code}

Is there a known workaround for now?


was (Author: vas...@leanplum.com):
I am having a very similar problem with cassandra-driver-core 3.0.0 and Google 
Dataflow. Deploying to Dataflow sometimes works, sometimes gives the netty 
exception:

"java.lang.NoSuchMethodError: 
io.netty.util.internal.PlatformDependent.newLongCounter()Lio/netty/util/internal/LongCounter;
        at io.netty.buffer.PoolArena.<init>(PoolArena.java:64)
        at io.netty.buffer.PoolArena$HeapArena.<init>(PoolArena.java:593)
        at 
io.netty.buffer.PooledByteBufAllocator.<init>(PooledByteBufAllocator.java:179)
        at 
io.netty.buffer.PooledByteBufAllocator.<init>(PooledByteBufAllocator.java:153)
        at 
io.netty.buffer.PooledByteBufAllocator.<init>(PooledByteBufAllocator.java:145)
        at 
io.netty.buffer.PooledByteBufAllocator.<clinit>(PooledByteBufAllocator.java:128)
        at 
com.datastax.driver.core.NettyOptions.afterBootstrapInitialized(NettyOptions.java:141)
        at 
com.datastax.driver.core.Connection$Factory.newBootstrap(Connection.java:825)
        at 
com.datastax.driver.core.Connection$Factory.access$100(Connection.java:677)
        at com.datastax.driver.core.Connection.initAsync(Connection.java:129)
        at com.datastax.driver.core.Connection$Factory.open(Connection.java:731)
        at 
com.datastax.driver.core.ControlConnection.tryConnect(ControlConnection.java:251)
        at 
com.datastax.driver.core.ControlConnection.reconnectInternal(ControlConnection.java:199)
        at 
com.datastax.driver.core.ControlConnection.connect(ControlConnection.java:77)
        at com.datastax.driver.core.Cluster$Manager.init(Cluster.java:1414)
        at com.datastax.driver.core.Cluster.init(Cluster.java:162)
        at com.datastax.driver.core.Cluster.connectAsync(Cluster.java:333)
        at com.datastax.driver.core.Cluster.connectAsync(Cluster.java:308)
        at com.datastax.driver.core.Cluster.connect(Cluster.java:250)

Is there a known workaround for now?

> Cassandra should not depend on netty-all
> ----------------------------------------
>
>                 Key: CASSANDRA-10984
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-10984
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: James Roper
>            Assignee: Alex Petrov
>            Priority: Minor
>         Attachments: 
> 0001-Use-separate-netty-depencencies-instead-of-netty-all.patch, 
> 0001-with-binaries.patch
>
>
> netty-all is a jar that bundles all the individual netty dependencies for 
> convenience together for people trying out netty to get started quickly.  
> Serious projects like Cassandra should never ever ever use it, since it's a 
> recipe for classpath disasters.
> To illustrate, I'm running Cassandra embedded in an app, and I get this error:
> {noformat}
> [JVM-1] java.lang.NoSuchMethodError: 
> io.netty.util.internal.PlatformDependent.newLongCounter()Lio/netty/util/internal/LongCounter;
> [JVM-1]       at io.netty.buffer.PoolArena.<init>(PoolArena.java:64) 
> ~[netty-buffer-4.0.33.Final.jar:4.0.33.Final]
> [JVM-1]       at 
> io.netty.buffer.PoolArena$HeapArena.<init>(PoolArena.java:593) 
> ~[netty-buffer-4.0.33.Final.jar:4.0.33.Final]
> [JVM-1]       at 
> io.netty.buffer.PooledByteBufAllocator.<init>(PooledByteBufAllocator.java:179)
>  ~[netty-buffer-4.0.33.Final.jar:4.0.33.Final]
> [JVM-1]       at 
> io.netty.buffer.PooledByteBufAllocator.<init>(PooledByteBufAllocator.java:153)
>  ~[netty-buffer-4.0.33.Final.jar:4.0.33.Final]
> [JVM-1]       at 
> io.netty.buffer.PooledByteBufAllocator.<init>(PooledByteBufAllocator.java:145)
>  ~[netty-buffer-4.0.33.Final.jar:4.0.33.Final]
> [JVM-1]       at 
> io.netty.buffer.PooledByteBufAllocator.<clinit>(PooledByteBufAllocator.java:128)
>  ~[netty-buffer-4.0.33.Final.jar:4.0.33.Final]
> [JVM-1]       at 
> org.apache.cassandra.transport.CBUtil.<clinit>(CBUtil.java:56) 
> ~[cassandra-all-3.0.0.jar:3.0.0]
> [JVM-1]       at org.apache.cassandra.transport.Server.start(Server.java:134) 
> ~[cassandra-all-3.0.0.jar:3.0.0]
> {noformat}
> {{PlatformDependent}} comes from netty-common, of which version 4.0.33 is on 
> the classpath, but it's also provided by netty-all, which has version 4.0.23 
> brought in by cassandra.  By a fluke of classpath ordering, the classloader 
> has loaded the netty buffer classes from netty-buffer 4.0.33, but the 
> PlatformDependent class from netty-all 4.0.23, and these two versions are not 
> binary compatible, hence the linkage error.
> Essentially to avoid these problems in serious projects, anyone that ever 
> brings in cassandra is going to have to exclude the netty dependency from it, 
> which is error prone, and when you get it wrong, due to the nature of 
> classpath ordering bugs, it might not be till you deploy to production that 
> you actually find out there's a problem.



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