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Observation¶

While collecting logs for poo#121573 we realized that the journal of the service is different from the minion-log (visible in the webui) which is different from what we expect from reading the code. An example:

minion log on webui:

    [info] [#45742] Cache size of "/var/lib/openqa/cache" is 48 GiB, with limit 50 GiB
    [info] [#45742] Downloading "autoyast_SLES-12-SP4-ppc64le-HA-updated.qcow2" from "http://openqa.suse.de/tests/10091929/asset/hdd/autoyast_SLES-12-SP4-ppc64le-HA-updated.qcow2"
    [info] [#45742] Content of "/var/lib/openqa/cache/openqa.suse.de/autoyast_SLES-12-SP4-ppc64le-HA-updated.qcow2" has not changed, updating last use

journalctl -u openqa-worker-cacheservice-minion.service:

Dec 06 13:29:15 powerqaworker-qam-1 openqa-worker-cacheservice-minion[50194]: [50194] [i] Downloading: "sle-12-SP4-ppc64le-ha-alpha-alpha-node01.qcow2"
Dec 06 13:29:52 powerqaworker-qam-1 openqa-worker-cacheservice-minion[50194]: [50194] [i] Cache size of "/var/lib/openqa/cache" is 50 GiB, with limit 50 GiB

@okurz also found some code which should print "purging" messages when cached assets are deleted. These I can't find at all in the journal.

It also seems that just sometimes the minion-id is logged in the journal which makes it quite hard to find the corresponding minion job from the journal and vice versa.

Acceptance criteria¶

• AC1: Log output on the webui of a minion is consistent and the same as in the system journal
• AC2: Asset deletion is also logged inside the system journal
• AC3: System journal includes a reference to the according minion job id

Suggestions¶

• Try to understand why #121573 went wrong and take a look at several logs we have for the cacheservice. Observe how all these logfiles are telling different things and it is quite hard to link them together to create a complete picture of what happens at that time with the job and cacheservice.