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DAOS-17200 tests: avoid data corruption across all replicas (#16047) #16079

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DAOS-17200 tests: avoid data corruption across all replicas (#16047) #16079

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Fault injection may corrupt two replica datasets and cause DER_CSUM errors during fetch operations. Current rebuild logic indefinitely retries for these errors. Until protocol handling is improved to properly address this scenario, restrict fault injection testing to rank 0 only.

Test-tag: test_daos_rebuild_simple

Steps for the author:

  • Commit message follows the guidelines.
  • Appropriate Features or Test-tag pragmas were used.
  • Appropriate Functional Test Stages were run.
  • At least two positive code reviews including at least one code owner from each category referenced in the PR.
  • Testing is complete. If necessary, forced-landing label added and a reason added in a comment.

After all prior steps are complete:

  • Gatekeeper requested (daos-gatekeeper added as a reviewer).

@wangshilong
DAOS-17200 tests: avoid data corruption across all replicas (#16047)
5c34de1 
Fault injection may corrupt two replica datasets and cause
DER_CSUM errors during fetch operations. Current rebuild logic
indefinitely retries for these errors. Until protocol handling
is improved to properly address this scenario, restrict fault
injection testing to rank 0 only.

Test-tag: test_daos_rebuild_simple
Signed-off-by: Wang Shilong <shilong.wang@hpe.com>
@github-actions GitHub Actions
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Ticket title is 'daos_test/suite.py:DaosCoreTest.test_daos_rebuild_simple - waiting for rebuild err -2021 test timeout'
Status is 'In Progress'
Labels: 'ci_2.6_daily,pr_test'
https://daosio.atlassian.net/browse/DAOS-17200

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