fix unhandler error -172 on entry committable causing the server to crash

[SylvainSenechal]

Issue: BB-758

Seen in zenko ci :

[bert-e]

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[bert-e]

Incorrect fix version

The Fix Version/s in issue BB-758 contains:

• None

Considering where you are trying to merge, I ignored possible hotfix versions and I expected to find:

• 9.4.0

Please check the Fix Version/s of BB-758, or the target
branch of this pull request.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 74.53%. Comparing base (9c21188) to head (f308a2a).

Additional details and impacted files

Files with missing lines	Coverage Δ
lib/BackbeatConsumer.js	93.88% <100.00%> (+0.04%)	⬆️

... and 3 files with indirect coverage changes

Components	Coverage Δ
Bucket Notification	80.37% <ø> (ø)
Core Library	80.72% <100.00%> (-0.42%)	⬇️
Ingestion	70.53% <ø> (-0.62%)	⬇️
Lifecycle	79.01% <ø> (ø)
Oplog Populator	85.83% <ø> (ø)
Replication	59.65% <ø> (ø)
Bucket Scanner	85.76% <ø> (ø)

@@                 Coverage Diff                 @@
##           development/9.4    #2731      +/-   ##
===================================================
- Coverage            74.75%   74.53%   -0.23%     
===================================================
  Files                  200      200              
  Lines                13610    13613       +3     
===================================================
- Hits                 10174    10146      -28     
- Misses                3426     3457      +31     
  Partials                10       10              

Flag	Coverage Δ
api:retry	9.14% <0.00%> (-0.01%)	⬇️
api:routes	8.95% <0.00%> (-0.01%)	⬇️
bucket-scanner	85.76% <ø> (ø)
ft_test:queuepopulator	10.01% <0.00%> (-0.57%)	⬇️
ingestion	12.49% <0.00%> (-0.07%)	⬇️
lib	7.62% <60.00%> (+<0.01%)	⬆️
lifecycle	18.84% <60.00%> (-0.01%)	⬇️
notification	1.02% <0.00%> (-0.01%)	⬇️
oplogPopulator	0.14% <0.00%> (-0.01%)	⬇️
replication	18.49% <60.00%> (+<0.01%)	⬆️
unit	51.16% <100.00%> (+0.04%)	⬆️

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[claude]

LGTM

Review by Claude Code

[bert-e]

Waiting for approval

The following approvals are needed before I can proceed with the merge:

• the author

• 2 peers

[SylvainSenechal]

So this stuff seems to happen on rebalance or weird kafka status.

• Before, the pod would crash, the offset wouldn't be commited, and another one pod would reconsume and re process it
• Now : the pod doesn't crash, but the offset is still not commited. and reconsumed later by another pod, or maybe the same pod since now it doesn't crash anymore