[Bug] Invalid JSONB document: too small size(0) or null pointer

[iulian-taraboanta]

Search before asking

• I had searched in the issues and found no similar issues.

Version

V3.1.2

What's Wrong?

Hi, after updating to version 3.1.2 from 2.1.11 I noticed that compaction fails constantly leading to versions accumulating.

By inspecting the tablet:

{
    "cumulative policy type": "size_based",
    "cumulative point": 490516,
    "last cumulative failure time": "2025-11-28 09:09:52.925",
    "last base failure time": "1970-01-01 01:00:00.000",
    "last full failure time": "1970-01-01 01:00:00.000",
    "last cumulative success time": "1970-01-01 01:00:00.000",
    "last base success time": "1970-01-01 01:00:00.000",
    "last full success time": "1970-01-01 01:00:00.000",
    "last cumulative schedule time": "2025-11-28 09:10:04.419",
    "last base schedule time": "1970-01-01 01:00:00.000",
    "last full schedule time": "1970-01-01 01:00:00.000",
    "last cumulative status": "[INVALID_ARGUMENT]Invalid JSONB document: too small size(0) or null pointer",
    "last base status": "",
    "last full status": "",
}

In be.INFO multiple entries with:
W20251128 15:19:49.485358 3219940 tablet.cpp:1858] failed to do cumulative compaction, tablet=27034405 : [INVALID_ARGUMENT]Invalid JSONB document: too small size(0) or null pointer

What You Expected?

Same behavior as in V2.1.11

How to Reproduce?

No response

Anything Else?

No response

Are you willing to submit PR?

• Yes I am willing to submit a PR!

Code of Conduct

• I agree to follow this project's Code of Conduct