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https://issues.apache.org/jira/browse/CASSANDRA-5391?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13616475#comment-13616475
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Ondřej Černoš commented on CASSANDRA-5391:
------------------------------------------

How does this information match the observed behaviour? I can clearly see two 
threads downloading the file.
                
> SSL problems with inter-DC communication
> ----------------------------------------
>
>                 Key: CASSANDRA-5391
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-5391
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 1.2.3
>         Environment: $ /etc/alternatives/jre_1.6.0/bin/java -version
> java version "1.6.0_23"
> Java(TM) SE Runtime Environment (build 1.6.0_23-b05)
> Java HotSpot(TM) 64-Bit Server VM (build 19.0-b09, mixed mode)
> $ uname -a
> Linux hostname 2.6.32-358.2.1.el6.x86_64 #1 SMP Tue Mar 12 14:18:09 CDT 2013 
> x86_64 x86_64 x86_64 GNU/Linux
> $ cat /etc/redhat-release 
> Scientific Linux release 6.3 (Carbon)
> $ facter | grep ec2
> ...
> ec2_placement => availability_zone=us-east-1d
> ...
> $ rpm -qi cassandra
> cassandra-1.2.3-1.el6.cmp1.noarch
> (custom built rpm from cassandra tarball distribution)
>            Reporter: Ondřej Černoš
>            Assignee: T Jake Luciani
>            Priority: Blocker
>
> I get SSL and snappy compression errors in multiple datacenter setup.
> The setup is simple: 3 nodes in AWS east, 3 nodes in Rackspace. I use 
> slightly modified Ec2MultiRegionSnitch in Rackspace (I just added a regex 
> able to parse the Rackspace/Openstack availability zone which happens to be 
> in unusual format).
> During {{nodetool rebuild}} tests I managed to (consistently) trigger the 
> following error:
> {noformat}
> 2013-03-19 12:42:16.059+0100 [Thread-13] [DEBUG] 
> IncomingTcpConnection.java(79) 
> org.apache.cassandra.net.IncomingTcpConnection: IOException reading from 
> socket; closing
> java.io.IOException: FAILED_TO_UNCOMPRESS(5)
>       at org.xerial.snappy.SnappyNative.throw_error(SnappyNative.java:78)
>       at org.xerial.snappy.SnappyNative.rawUncompress(Native Method)
>       at org.xerial.snappy.Snappy.rawUncompress(Snappy.java:391)
>       at 
> org.apache.cassandra.io.compress.SnappyCompressor.uncompress(SnappyCompressor.java:93)
>       at 
> org.apache.cassandra.streaming.compress.CompressedInputStream.decompress(CompressedInputStream.java:101)
>       at 
> org.apache.cassandra.streaming.compress.CompressedInputStream.read(CompressedInputStream.java:79)
>       at java.io.DataInputStream.readUnsignedShort(DataInputStream.java:337)
>       at 
> org.apache.cassandra.utils.BytesReadTracker.readUnsignedShort(BytesReadTracker.java:140)
>       at 
> org.apache.cassandra.utils.ByteBufferUtil.readShortLength(ByteBufferUtil.java:361)
>       at 
> org.apache.cassandra.utils.ByteBufferUtil.readWithShortLength(ByteBufferUtil.java:371)
>       at 
> org.apache.cassandra.streaming.IncomingStreamReader.streamIn(IncomingStreamReader.java:160)
>       at 
> org.apache.cassandra.streaming.IncomingStreamReader.read(IncomingStreamReader.java:122)
>       at 
> org.apache.cassandra.net.IncomingTcpConnection.stream(IncomingTcpConnection.java:226)
>       at 
> org.apache.cassandra.net.IncomingTcpConnection.handleStream(IncomingTcpConnection.java:166)
>       at 
> org.apache.cassandra.net.IncomingTcpConnection.run(IncomingTcpConnection.java:66)
> {noformat}
> The exception is raised during DB file download. What is strange is the 
> following:
> * the exception is raised only when rebuildig from AWS into Rackspace
> * the exception is raised only when all nodes are up and running in AWS (all 
> 3). In other words, if I bootstrap from one or two nodes in AWS, the command 
> succeeds.
> Packet-level inspection revealed malformed packets _on both ends of 
> communication_ (the packet is considered malformed on the machine it 
> originates on).
> Further investigation raised two more concerns:
> * We managed to get another stacktrace when testing the scenario. The 
> exception was raised only once during the tests and was raised when I 
> throttled the inter-datacenter bandwidth to 1Mbps.
> {noformat}
> java.lang.RuntimeException: javax.net.ssl.SSLException: bad record MAC
>       at com.google.common.base.Throwables.propagate(Throwables.java:160)
>       at 
> org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:32)
>       at java.lang.Thread.run(Thread.java:662)
> Caused by: javax.net.ssl.SSLException: bad record MAC
>       at com.sun.net.ssl.internal.ssl.Alerts.getSSLException(Alerts.java:190)
>       at 
> com.sun.net.ssl.internal.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1649)
>       at 
> com.sun.net.ssl.internal.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1607)
>       at 
> com.sun.net.ssl.internal.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:859)
>       at 
> com.sun.net.ssl.internal.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:755)
>       at 
> com.sun.net.ssl.internal.ssl.AppInputStream.read(AppInputStream.java:75)
>       at 
> org.apache.cassandra.streaming.compress.CompressedInputStream$Reader.runMayThrow(CompressedInputStream.java:151)
>       at 
> org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28)
>       ... 1 more
> {noformat}
> This is pure SSL error with no snappy interference.
> * I managed to trigger the exception during {{nodetool repair}} tests when 
> replacing dead node with a new one _on the aws side_, which means the problem 
> is not restricted to the one-way scenario only.
> {noformat}
> 2013-03-27 14:06:03.033+0100 [Thread-137] [INFO] StreamInSession.java(136) 
> org.apache.cassandra.streaming.StreamInSession: Streaming of file 
> /path/to/cassandra/data/ks/cf/ks-cf-ib-2-Data.db sections=3 progress=0/20513 
> - 0% for org.apache.cassandra.streaming.StreamInSession@14450ae7 failed: 
> requesting a retry.
> 2013-03-27 14:06:03.033+0100 [Thread-138] [DEBUG] FileUtils.java(110) 
> org.apache.cassandra.io.util.FileUtils: Deleting ks-cf-tmp-ib-98-Data.db
> 2013-03-27 14:06:03.033+0100 [Thread-138] [DEBUG] FileUtils.java(110) 
> org.apache.cassandra.io.util.FileUtils: Deleting ks-cf-tmp-ib-98-Filter.db
> 2013-03-27 14:06:03.034+0100 [Thread-138] [DEBUG] FileUtils.java(110) 
> org.apache.cassandra.io.util.FileUtils: Deleting ks-cf-tmp-ib-98-TOC.txt
> 2013-03-27 14:06:03.034+0100 [Thread-137] [DEBUG] 
> IncomingTcpConnection.java(91) 
> org.apache.cassandra.net.IncomingTcpConnection: IOException reading from 
> socket; closing
> java.io.IOException: FAILED_TO_UNCOMPRESS(5)
>       at org.xerial.snappy.SnappyNative.throw_error(SnappyNative.java:78)
>       at org.xerial.snappy.SnappyNative.rawUncompress(Native Method)
>       at org.xerial.snappy.Snappy.rawUncompress(Snappy.java:391)
>       at 
> org.apache.cassandra.io.compress.SnappyCompressor.uncompress(SnappyCompressor.java:93)
>       at 
> org.apache.cassandra.streaming.compress.CompressedInputStream.decompress(CompressedInputStream.java:101)
>       at 
> org.apache.cassandra.streaming.compress.CompressedInputStream.read(CompressedInputStream.java:79)
>       at java.io.DataInputStream.readUnsignedShort(DataInputStream.java:320)
>       at 
> org.apache.cassandra.utils.BytesReadTracker.readUnsignedShort(BytesReadTracker.java:140)
>       at 
> org.apache.cassandra.utils.ByteBufferUtil.readShortLength(ByteBufferUtil.java:361)
>       at 
> org.apache.cassandra.utils.ByteBufferUtil.readWithShortLength(ByteBufferUtil.java:371)
>       at 
> org.apache.cassandra.streaming.IncomingStreamReader.streamIn(IncomingStreamReader.java:160)
>       at 
> org.apache.cassandra.streaming.IncomingStreamReader.read(IncomingStreamReader.java:122)
>       at 
> org.apache.cassandra.net.IncomingTcpConnection.stream(IncomingTcpConnection.java:238)
>       at 
> org.apache.cassandra.net.IncomingTcpConnection.handleStream(IncomingTcpConnection.java:178)
>       at 
> org.apache.cassandra.net.IncomingTcpConnection.run(IncomingTcpConnection.java:78)
> {noformat}

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