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  1. Core Server
  2. SERVER-61924

retryable_mongos_write_errors.js fails in 4.2 multiversion suites due to missing failpoint command in 4.0

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    • Fully Compatible
    • ALL
    • Sharding 2021-12-27
    • 15
    • 2

    Description

      Example of failure - https://evergreen.mongodb.com/task/mongodb_mongo_v4.2_enterprise_rhel_62_64_bit_display_sharding_last_stable_mongos_and_mixed_shards_c797110b90fd5d950fa5d78aa26ae198c76883c6_21_12_03_21_30_06

      How It Happens:

      • The tests are running on a mixed cluster (my guess is 4.2 something and 4.0 something)
      • The 4.2 test uses the failpoints introduced in 4.2
      • The 4.0 server code does not have the wait for failpoint command (just searched), so that when the 4.2 test uses the failpoint helpers to execute the failpoint commands, it will fail Because the 4.0 shards don't have those command

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            luis.osta@mongodb.com Luis Osta (Inactive)
            luis.osta@mongodb.com Luis Osta (Inactive)
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