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[v26.1.x] ct/l1: reduce noise from topic purger retries#29967

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andrwng merged 1 commit into
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vbotbuildovich:backport-pr-29929-v26.1.x-672
Mar 27, 2026
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[v26.1.x] ct/l1: reduce noise from topic purger retries#29967
andrwng merged 1 commit into
redpanda-data:v26.1.xfrom
vbotbuildovich:backport-pr-29929-v26.1.x-672

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Backport of PR #29929

Previously, replicated_metastore folded RPC errors into the not_removed
set rather than surfacing them as proper errors. The topic purger then
treated any non-empty not_removed as a failure, even when the metastore
was just doing normal progress-based chunking on large topics. This led
to spurious "Metastore requests failed too many times" warnings in logs
during routine operation.

Now, replicated_metastore will retry errors, and proceed to loop on
non-empty not_removed replies to continue to make progress.

(cherry picked from commit 43ec4d0)
@vbotbuildovich vbotbuildovich added this to the v26.1.x-next milestone Mar 26, 2026
@vbotbuildovich vbotbuildovich added the kind/backport PRs targeting a stable branch label Mar 26, 2026
@vbotbuildovich vbotbuildovich requested a review from andrwng March 26, 2026 06:48
@andrwng andrwng enabled auto-merge March 26, 2026 07:35
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CI test results

test results on build#82367
test_class test_method test_arguments test_kind job_url test_status passed reason test_history
DataMigrationsMultiClusterTest test_with_consumer_groups null integration https://buildkite.com/redpanda/redpanda/builds/82367#019d28f3-c292-456c-a456-36b75f1fde10 FLAKY 10/11 Test PASSES after retries.No significant increase in flaky rate(baseline=0.0000, p0=1.0000, reject_threshold=0.0100. adj_baseline=0.1000, p1=0.3487, trust_threshold=0.5000) https://redpanda.metabaseapp.com/dashboard/87-tests?tab=142-dt-individual-test-history&test_class=DataMigrationsMultiClusterTest&test_method=test_with_consumer_groups

@andrwng andrwng merged commit 507f6bc into redpanda-data:v26.1.x Mar 27, 2026
20 checks passed
@piyushredpanda piyushredpanda modified the milestones: v26.1.x-next, v26.1.2 Apr 6, 2026
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