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  1. Cassandra
  2. CASSANDRA-18968

StartupClusterConnectivityChecker fails on upgrade from 3.X

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    • Correctness - API / Semantic Implementation
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      In this scenario you should see:
      WARN [main] 2023-10-27 15:58:22,234 StartupClusterConnectivityChecker.java:183 - Timed out after 10002 milliseconds, was waiting for remaining peers to connect:

      {dc1=[X.Y.Z.W, A.B.C.D]}

      .

      After applying this patch, instead you should see:
      Skipping startup connectivity check as some nodes may be running Cassandra version 3 or older which does not support connectivity checking.

      Show
      In this scenario you should see: WARN [main] 2023-10-27 15:58:22,234 StartupClusterConnectivityChecker.java:183 - Timed out after 10002 milliseconds, was waiting for remaining peers to connect: {dc1=[X.Y.Z.W, A.B.C.D]} . After applying this patch, instead you should see: Skipping startup connectivity check as some nodes may be running Cassandra version 3 or older which does not support connectivity checking.

    Description

      Starting up a new 4.X node on a 3.x cluster throws the following warning:

      WARN  [main] 2023-10-27 15:58:22,234 StartupClusterConnectivityChecker.java:183 - Timed out after 10002 milliseconds, was waiting for remaining peers to connect: {dc1=[X.Y.Z.W, A.B.C.D]}

      I think this is because the PING messages used by the startup check are not available on 3.X.

      To provide a smoother upgrade experience we should probably disable this check on a mixed version clusters, or skip peers on versions < 4.x when doing the connectivity check.

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          relates to

          Bug - A problem which impairs or prevents the functions of the product. CASSANDRA-14297 Startup checker should wait for count rather than percentage

          • Low -
          • Resolved

          Improvement - An improvement or enhancement to an existing feature or task. CASSANDRA-13993 Add optional startup delay to wait until peers are ready

          • Low -
          • Resolved

          Improvement - An improvement or enhancement to an existing feature or task. CASSANDRA-14447 Cleanup StartupClusterConnectivityChecker and PING Verb

          • Low -
          • Resolved
          Testing discovered

          Bug - A problem which impairs or prevents the functions of the product. CASSANDRA-18999 Gossiper::hasMajorVersion3Nodes returns true when a cluster is upgrading patch version without Cassandra 3 nodes.

          • Low -
          • Resolved
          links to

          Web Link GitHub Pull Request #2862

          Web Link GitHub Pull Request #2863

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              isaacreath Isaac Reath
              paulo Paulo Motta
              Isaac Reath
              Paulo Motta, Stefan Miklosovic
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