What you have seen is totally expected. You can’t stream between different major versions of Cassandra. Get the upgrade done, then worry about any down hardware. If you are using DCs, upgrade one DC at a time, so that there is an available environment in case of any disasters.
My advice, though, is to get through the rolling upgrade process as quickly as possible. Don’t stay in a mixed state very long. The cluster will function fine in a mixed state – except for those streaming operations. No repairs, no bootstraps. Sean Durity – Staff Systems Engineer, Cassandra From: Jai Bheemsen Rao Dhanwada <jaibheem...@gmail.com> Sent: Friday, July 26, 2019 2:24 PM To: user@cassandra.apache.org Subject: [EXTERNAL] Apache Cassandra upgrade path Hello, I am trying to upgrade Apache Cassandra from 2.1.16 to 3.11.3, the regular rolling upgrade process works fine without any issues. However, I am running into an issue where if there is a node with older version dies (hardware failure) and a new node comes up and tries to bootstrap, it's failing. I tried two combinations: 1. Joining replacement node with 2.1.16 version of cassandra In this case nodes with 2.1.16 version are able to stream data to the new node, but the nodes with 3.11.3 version are failing with the below error. ERROR [STREAM-INIT-/10.x.x.x:40296] 2019-07-26 17:45:17,775 IncomingStreamingConnection.java:80 - Error while reading from socket from /10.y.y.y:40296. java.io.IOException: Received stream using protocol version 2 (my version 4). Terminating connection 2. Joining replacement node with 3.11.3 version of cassandra In this case the nodes with 3.11.3 version of cassandra are able to stream the data but it's not able to stream data from the 2.1.16 nodes and failing with the below error. ERROR [STREAM-IN-/10.z.z.z:7000] 2019-07-26 18:08:10,380 StreamSession.java:593 - [Stream #538c6900-afd0-11e9-a649-ab2e045ee53b] Streaming error occurred on session with peer 10.z.z.z java.io.IOException: Connection reset by peer at sun.nio.ch.FileDispatcherImpl.read0(Native Method) ~[na:1.8.0_151] at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:39) ~[na:1.8.0_151] at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:223) ~[na:1.8.0_151] at sun.nio.ch.IOUtil.read(IOUtil.java:197) ~[na:1.8.0_151] at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:380) ~[na:1.8.0_151] at sun.nio.ch.SocketAdaptor$SocketInputStream.read(SocketAdaptor.java:206) ~[na:1.8.0_151] at sun.nio.ch.ChannelInputStream.read(ChannelInputStream.java:103) ~[na:1.8.0_151] at java.nio.channels.Channels$ReadableByteChannelImpl.read(Channels.java:385) ~[na:1.8.0_151] at org.apache.cassandra.streaming.messages.StreamMessage.deserialize(StreamMessage.java:56) ~[apache-cassandra-3.11.3.jar:3.11.3] at org.apache.cassandra.streaming.ConnectionHandler$IncomingMessageHandler.run(ConnectionHandler.java:311) ~[apache-cassandra-3.11.3.jar:3.11.3] at java.lang.Thread.run(Thread.java:748) [na:1.8.0_151] Note: In both cases I am using replace_address to replace dead node, as I am running into some issues with "nodetool removenode" . I use ephemeral disk, so replacement node always comes up with empty data dir and bootstrap. Any other work around to mitigate this problem? I am worried about any nodes going down while we are in the process of upgrade, as it could take several hours to upgrade depending on the cluster size. ________________________________ The information in this Internet Email is confidential and may be legally privileged. It is intended solely for the addressee. Access to this Email by anyone else is unauthorized. If you are not the intended recipient, any disclosure, copying, distribution or any action taken or omitted to be taken in reliance on it, is prohibited and may be unlawful. When addressed to our clients any opinions or advice contained in this Email are subject to the terms and conditions expressed in any applicable governing The Home Depot terms of business or client engagement letter. The Home Depot disclaims all responsibility and liability for the accuracy and content of this attachment and for any damages or losses arising from any inaccuracies, errors, viruses, e.g., worms, trojan horses, etc., or other items of a destructive nature, which may be contained in this attachment and shall not be liable for direct, indirect, consequential or special damages in connection with this e-mail message or its attachment.