WARN: Failed to make upload candidate

[travisdowns]

Version & Environment

Redpanda version: v23.1.1

What went wrong?

The following warning shows in the log:

WARN  2023-03-16 18:45:31,586 [shard  7] archival - [fiber47 kafka/topic1/216] - ntp_archiver_service.cc:1489 - Failed to make upload candidate

What should have happened instead?

No warnings without external causes that we can't avoid.

JIRA Link: CORE-1214

[jcsp]

Also noticed this today on the long running test cluster (it only got upgraded to 23.1 a day or so ago).

No sign of it having an impact (uploads appeared to be proceeding eventually), Evgeny suggested that it could happen in situations where the retention code is racing with the upload code, but it has been seen on topics that had infinite retention.

[piyushredpanda]

Sounds like something we should target for next minor, then?

[jcsp]

This has started to come up in automated tests.

FAIL test: KgoVerifierWithSiTestLargeSegments.test_si_with_timeboxed.cloud_storage_type=CloudStorageType.S3 (1/2 runs) failure at 2023-05-04T17:16:24.037Z: on (amd64, VM) in job https://buildkite.com/redpanda/vtools/builds/7377#0187e5cb-c7ac-45a5-a783-89ebbe7df193

FAIL test: CloudRetentionTest.test_cloud_retention.max_consume_rate_mb=20.cloud_storage_type=CloudStorageType.S3 (1/31 runs) failure at 2023-05-05T04:45:27.129Z: on (arm64, VM) in job https://buildkite.com/redpanda/vtools/builds/7385#0187e85f-7419-4984-9d70-bec9324a05ac

[ztlpn]

Created https://github.com/redpanda-data/redpanda/issues/10583 so that it easier for PR authors to find and refer to the issue.

[mmaslankaprv]

for me it looks like the issue we are seeing in the mentioned tests and the one mentioned in the issue title are two different problems. Then one that started happening in the mentioned tests is related with the size mismatch, whereas the problem seen in the PoC is more general as it hits the case where there is no upload candidate at all.

[github-actions[bot]]

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