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ZTS: Retry in import_rewind_config_changed.ksh

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As explained by the disclaimer in the test case,

    "This test can fail since nothing guarantees that old
    MOS blocks aren't overwritten."

This behavior is expected and correct, but results in a
flaky test case which is problematic for the CI.  The best
we can do to resolve this is to retry the sub-test which
failed when the MOS blocks have clearly been overwritten.

When testing failures were rare enough that a single retry
should normally be sufficient.  However, we allow up to
five for good measure.

Reviewed by: George Melikov <mail@gmelikov.ru>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #13119
This commit is contained in:
Brian Behlendorf 2022-02-20 19:21:31 -08:00 committed by GitHub
parent 806739f991
commit a5b3fab341
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 49 additions and 11 deletions
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2
tests/test-runner/bin/zts-report.py.in
View File

@ -222,8 +222,6 @@ maybe = {
'cli_root/zfs_unshare/setup': ['SKIP', share_reason],
'cli_root/zpool_add/zpool_add_004_pos': ['FAIL', known_reason],
'cli_root/zpool_destroy/zpool_destroy_001_pos': ['SKIP', '6145'],
'cli_root/zpool_import/import_rewind_config_changed':
['FAIL', rewind_reason],
'cli_root/zpool_import/zpool_import_missing_003_pos': ['SKIP', '6839'],
'cli_root/zpool_initialize/zpool_initialize_import_export':
['FAIL', '11948'],

58
tests/zfs-tests/tests/functional/cli_root/zpool_import/import_rewind_config_changed.ksh
View File

@ -61,6 +61,7 @@ function test_common
typeset detachvdev="${4:-}"
typeset removevdev="${5:-}"
typeset finalpool="${6:-}"
typeset retval=1
typeset poolcheck="$poolcreate"
@ -120,19 +121,30 @@ function test_common
# while having a checkpoint, we take it after the
# operation that changes the config.
#
# However, it is possible the MOS data was overwritten
# in which case the pool will either be unimportable, or
# may have been rewound prior to the data being written.
# In which case an error is returned and test_common()
# is retried by the caller to minimize false positives.
#
log_must zpool checkpoint $TESTPOOL1
log_must overwrite_data $TESTPOOL1 ""
log_must zpool export $TESTPOOL1
log_must zpool import -d $DEVICE_DIR -T $txg $TESTPOOL1
log_must check_pool_config $TESTPOOL1 "$poolcheck"
zpool import -d $DEVICE_DIR -T $txg $TESTPOOL1
if (( $? == 0 )); then
verify_data_md5sums $MD5FILE
if (( $? == 0 )); then
retval=0
fi
log_must verify_data_md5sums $MD5FILE
log_must check_pool_config $TESTPOOL1 "$poolcheck"
log_must zpool destroy $TESTPOOL1
fi
# Cleanup
log_must zpool destroy $TESTPOOL1
if [[ -n $pathstochange ]]; then
for dev in $pathstochange; do
log_must mv "${dev}_new" $dev
@ -143,6 +155,7 @@ function test_common
log_must zpool destroy $TESTPOOL2
log_note ""
return $retval
}
function test_add_vdevs
@ -152,7 +165,12 @@ function test_add_vdevs
log_note "$0: pool '$poolcreate', add $addvdevs."
test_common "$poolcreate" "$addvdevs"
for retry in $(seq 1 5); do
test_common "$poolcreate" "$addvdevs" && return
log_note "Retry $retry / 5 for test_add_vdevs()"
done
log_fail "Exhausted all 5 retries for test_add_vdevs()"
}
function test_attach_vdev
@ -163,7 +181,12 @@ function test_attach_vdev
log_note "$0: pool '$poolcreate', attach $attachvdev to $attachto."
test_common "$poolcreate" "" "$attachto $attachvdev"
for retry in $(seq 1 5); do
test_common "$poolcreate" "" "$attachto $attachvdev" && return
log_note "Retry $retry / 5 for test_attach_vdev()"
done
log_fail "Exhausted all 5 retries for test_attach_vdev()"
}
function test_detach_vdev
@ -173,7 +196,12 @@ function test_detach_vdev
log_note "$0: pool '$poolcreate', detach $detachvdev."
test_common "$poolcreate" "" "" "$detachvdev"
for retry in $(seq 1 5); do
test_common "$poolcreate" "" "" "$detachvdev" && return
log_note "Retry $retry / 5 for test_detach_vdev()"
done
log_fail "Exhausted all 5 retries for test_detach_vdev()"
}
function test_attach_detach_vdev
@ -186,7 +214,13 @@ function test_attach_detach_vdev
log_note "$0: pool '$poolcreate', attach $attachvdev to $attachto," \
"then detach $detachvdev."
test_common "$poolcreate" "" "$attachto $attachvdev" "$detachvdev"
for retry in $(seq 1 5); do
test_common "$poolcreate" "" "$attachto $attachvdev" \
"$detachvdev" && return
log_note "Retry $retry / 5 for test_attach_detach_vdev()"
done
log_fail "Exhausted all 5 retries for test_attach_detach_vdev()"
}
function test_remove_vdev
@ -197,7 +231,13 @@ function test_remove_vdev
log_note "$0: pool '$poolcreate', remove $removevdev."
test_common "$poolcreate" "" "" "" "$removevdev" "$finalpool"
for retry in $(seq 1 5); do
test_common "$poolcreate" "" "" "" "$removevdev" \
"$finalpool" && return
log_note "Retry $retry / 5 for test_remove_vdev()"
done
log_fail "Exhausted all 5 retries for test_remove_vdev()"
}
# Record txg history