From 7befcc185caff765a0044e30b73848e184014950 Mon Sep 17 00:00:00 2001 From: Brian Behlendorf Date: Sun, 20 Feb 2022 19:21:31 -0800 Subject: [PATCH] ZTS: Retry in import_rewind_config_changed.ksh 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 Signed-off-by: Brian Behlendorf Closes #13119 --- tests/test-runner/bin/zts-report.py.in | 2 - .../import_rewind_config_changed.ksh | 58 ++++++++++++++++--- 2 files changed, 49 insertions(+), 11 deletions(-) diff --git a/tests/test-runner/bin/zts-report.py.in b/tests/test-runner/bin/zts-report.py.in index 74a6a1b4d348..cdb4fc343e46 100755 --- a/tests/test-runner/bin/zts-report.py.in +++ b/tests/test-runner/bin/zts-report.py.in @@ -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'], diff --git a/tests/zfs-tests/tests/functional/cli_root/zpool_import/import_rewind_config_changed.ksh b/tests/zfs-tests/tests/functional/cli_root/zpool_import/import_rewind_config_changed.ksh index 3ac8c104f1ca..d79c757d2406 100755 --- a/tests/zfs-tests/tests/functional/cli_root/zpool_import/import_rewind_config_changed.ksh +++ b/tests/zfs-tests/tests/functional/cli_root/zpool_import/import_rewind_config_changed.ksh @@ -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