Siyao Meng created HDDS-16442:
---------------------------------
Summary: After OM upgrade, pre-existing DONE snapshot diff jobs
are permanently unreadable
Key: HDDS-16442
URL: https://issues.apache.org/jira/browse/HDDS-16442
Project: Apache Ozone
Issue Type: Bug
Reporter: Siyao Meng
h3. Finding
After a routine OM upgrade, every pre-existing DONE snapshot-diff job
deserializes with a null largestEntryKey, so the first client read of the
report trips the integrity check and hits an uncaught NPE (wrong-key
updateJobStatus) instead of the designed retriable error; the report is intact
yet permanently unreadable and the job is stuck DONE (not resubmittable) until
the retention TTL GC, affecting all old jobs broadly rather than via a rare
race.
h3. Classification
* Verdict: REPRODUCED
* Severity: Critical
* Source: Specula TLA+ model checking and confirmation debate, finding CR-2
h3. Reproduce
{noformat}
Ozone commit: 9fbf9ee0cb1bd2f5f5d437b6719ebbe5309351fb
Specula: v1.1.0 (commit c6aa3dfa)
Target: om-snapshot-diff-jobs
Guidance:
campaigns/ozone-9fbf9ee/targets/009-om-snapshot-diff-jobs/.prompt-extra.md
{noformat}
{code:none}
specula run --agent=claude-code --effort=high --keep-original --max-parallel=2 \
--enable-reviews --confirm-debate --tlc-memory-limit=28G --tlc-worker-limit=8
\
"om-snapshot-diff-jobs|apache/ozone|Java|Use the target-specific
.prompt-extra.md"
{code}
Discovered under HDDS-16430 (Specula TLA+ verification effort). The TLA+
specification, counterexample, and confirmation debate live in the Specula run
artifacts.
Generated with Specula (Claude Opus 4.8).
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
