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ZTS events_002: Improve speed and reliability

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events_002 exercises the ZED, ensuring that it neither misses events,
nor reporting events twice.

On slow test hardware, some of the timeouts are insufficient to allow
the ZED to properly settle.  Conversely, on fast hardware these same
timeouts are too long, unnecessarily slowing the test run.

Instead of using a fixed timeout, wait for the expected final event
before returning.  Additionally, wait with a timeout for unexpected
events to avoid missing them if they show up late.

Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Antonio Russo <aerusso@aerusso.net>
Closes #11703
This commit is contained in:
Antonio Russo 2021-03-08 09:42:45 -07:00 committed by GitHub
parent 93e3658035
commit b2eebe3ae7
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1 changed files with 3 additions and 4 deletions
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7
tests/zfs-tests/tests/functional/events/events_002_pos.ksh
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@ -66,7 +66,7 @@ log_must zpool create $MPOOL mirror $VDEV1 $VDEV2
# 2. Start the ZED and verify it handles missed events.
log_must zed_start
log_must file_wait $ZED_DEBUG_LOG
log_must file_wait_event $ZED_DEBUG_LOG 'sysevent\.fs\.zfs\.config_sync' 150
log_must cp $ZED_DEBUG_LOG $TMP_EVENTS_ZED
awk -v event="sysevent.fs.zfs.pool_create" \
@ -92,12 +92,11 @@ done
# 5. Start the ZED and verify it only handled the new missed events.
log_must zed_start
log_must file_wait $ZED_DEBUG_LOG 35
log_must file_wait_event $ZED_DEBUG_LOG 'sysevent\.fs\.zfs\.resilver_finish' 150
log_must cp $ZED_DEBUG_LOG $TMP_EVENTS_ZED
log_mustnot grep -q "sysevent.fs.zfs.pool_create" $TMP_EVENTS_ZED
log_mustnot file_wait_event $ZED_DEBUG_LOG 'sysevent\.fs\.zfs\.pool_create' 30
log_must grep -q "sysevent.fs.zfs.vdev_online" $TMP_EVENTS_ZED
log_must grep -q "sysevent.fs.zfs.resilver_start" $TMP_EVENTS_ZED
log_must grep -q "sysevent.fs.zfs.resilver_finish" $TMP_EVENTS_ZED
log_pass "Verify ZED handles missed events on when starting"