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When it happened on oss-apollo7004 workers, cache limit was: 47GB used on a limit of 50GB. Maybe we have a problem when limit is (nearly) reached?
I increased the size limit and rebooted the machine, but the same problem persists.

/usr/share/openqa/script/openqa-workercache minion job 526 returns:

{
  "args" => [
    1302670,
    "iso",
    "openSUSE-Tumbleweed-DVD-aarch64-Snapshot20200615-Media.iso",
    "https://openqa.opensuse.org"
  ],
  "attempts" => 1,
  "children" => [],
  "created" => "2020-06-16T09:05:00Z",
  "delayed" => "2020-06-16T09:05:00Z",
  "finished" => "2020-06-16T09:05:01Z",
  "id" => 526,
  "notes" => {
    "downloading_job" => 504,
    "lock" => "openSUSE-Tumbleweed-DVD-aarch64-Snapshot20200615-Media.iso.https://openqa.opensuse.org",
    "output" => "Asset \"openSUSE-Tumbleweed-DVD-aarch64-Snapshot20200615-Media.iso\" was downloaded by #504, details are therefore unavailable here"
  },
  "parents" => [],
  "priority" => 0,
  "queue" => "default",
  "result" => undef,
  "retried" => undef,
  "retries" => 0,
  "started" => "2020-06-16T09:05:01Z",
  "state" => "finished",
  "task" => "cache_asset",
  "time" => "2020-06-16T12:03:31Z",
  "worker" => 22
}

And for #504:

{
  "args" => [
    1302489,
    "iso",
    "openSUSE-Tumbleweed-DVD-aarch64-Snapshot20200615-Media.iso",
    "https://openqa.opensuse.org"
  ],
  "attempts" => 1,
  "children" => [],
  "created" => "2020-06-16T07:09:10Z",
  "delayed" => "2020-06-16T07:09:10Z",
  "finished" => undef,
  "id" => 504,
  "notes" => {
    "lock" => "openSUSE-Tumbleweed-DVD-aarch64-Snapshot20200615-Media.iso.https://openqa.opensuse.org"
  },
  "parents" => [],
  "priority" => 0,
  "queue" => "default",
  "result" => undef,
  "retried" => undef,
  "retries" => 0,
  "started" => "2020-06-16T07:09:10Z",
  "state" => "active",
  "task" => "cache_asset",
  "time" => "2020-06-16T12:06:51Z",
  "worker" => 14
}

That job information for #504 looks like an unclean service shutdown. As if the job was killed while it was still running. To leave the job in an active state the manager process would have to be killed before the job process (otherwise the manager records the dead job process).

As suggested on IRC by kraih, I workarounded with:

sudo -u _openqa-worker /usr/share/openqa/script/openqa-workercache minion job -e cache_asset -a '[1302489,"iso","openSUSE-Tumbleweed-DVD-aarch64-Snapshot20200615-Media.iso","https://openqa.opensuse.org"]' -n '{"lock":"just_a_test"}'

Also needed to drop the lock:

sudo -u _openqa-worker /usr/share/openqa/script/openqa-workercache minion job -U 'cache_openSUSE-Tumbleweed-DVD-aarch64-Snapshot20200615-Media.iso.https://openqa.opensuse.org

I've opened a PR to clean up locks on restart, that will help a bit with the problem. https://github.com/os-autoinst/openQA/pull/3177

Also found an upstream bug in Minion that might have been the main cause for unclean restarts. https://github.com/mojolicious/minion/compare/c8cf67e0deaa...bc6def3b3bc9

ggardet_arm wrote:

Happened today with https://openqa.opensuse.org/tests/1344801

Log from the worker:

juil. 28 12:26:55 siodtw01 worker[1770]: [info] Establishing ws connection via wss://openqa.opensuse.org/api/v1/ws/259
juil. 28 12:26:56 siodtw01 worker[1770]: [info] Registered and connected via websockets with openQA host https://openqa.opensuse.org and worker ID 259
juil. 28 12:26:56 siodtw01 worker[1773]: [warn] Websocket connection to https://openqa.opensuse.org/api/v1/ws/273 finished by remote side with code 1006, no reason - trying again in 10 seconds
juil. 28 12:26:56 siodtw01 worker[1709]: [info] Accepting job 1344802 from queue
juil. 28 12:26:56 siodtw01 worker[1709]: [error] Unable to accept job 1344802 because the websocket connection to https://openqa.opensuse.org has been lost.
juil. 28 12:26:56 siodtw01 worker[1709]: [info] Skipping job 1344803 from queue (parent faild with result api-failure)
juil. 28 12:26:56 siodtw01 worker[1709]: [info] Skipping job 1344801 from queue (parent faild with result skipped)
juil. 28 12:26:57 siodtw01 worker[1709]: [info] Skipping job 1344804 from queue (parent faild with result skipped)
juil. 28 12:26:59 siodtw01 worker[1773]: [info] Registering with openQA http://192.168.0.28
juil. 28 12:26:59 siodtw01 worker[1770]: [info] Registering with openQA http://192.168.0.28
juil. 28 12:27:00 siodtw01 worker[1709]: [info] Registering with openQA https://openqa.opensuse.org
juil. 28 12:27:01 siodtw01 worker[1709]: [info] Establishing ws connection via wss://openqa.opensuse.org/api/v1/ws/258

The test you linked has no logs in its assets. And the logs pasted don't mention the cache service. How is this cache service related at all?

hmm, looks like I mixed 2 tickets.