osd abort, _txc_add_transaction error

[Peter Sabaini <peter@xxxxxxxxxx>]

Heya,

We're occasionally seeing OSD aborts with something like this in the logs (this is on 17.2.7) 

bluestore(/var/lib/ceph/osd/ceph-70) operator() #2:61bc4388:::3c5b76bf-81e1-4a1a-bd94-7fee95fa35e2.25380786.89__shadow_.z1wu_6Nt7uzGSnV-cca7mQxgNVyKVUm_22:head# 0x6454c6b7ab00 exists in onode_map
bluestore(/var/lib/ceph/osd/ceph-70) _txc_add_transaction error (39) Directory not empty not handled on operation 21 (op 1, counting from 0)
_dump_transaction transaction dump:
{
    "ops": [
        {
            "op_num": 0,
            "op_name": "remove",
            "collection": "2.186_head",
            "oid": "#2:61800000::::head#"
        },
        {
            "op_num": 1,
            "op_name": "rmcoll",
            "collection": "2.186_head"
        }
    ]
}

I see tracker issue #49900 which seems to have similar symptoms but is closed.

The tracker has two Github PRs listed, #40237 and #40323

PR#40323 is merged, saying this might fix issue 49818, i.e. a different issue.

PR#40237 however has been closed due to it being stale, and I wonder if tracker #49900 might have been closed erroneously?

Could this be the case? 

Or might this be a regression?


Thanks,
peter.
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