diff options
Diffstat (limited to 'tests/zfs-tests/tests/functional/events/zed_slow_io_many_vdevs.ksh')
| -rwxr-xr-x | tests/zfs-tests/tests/functional/events/zed_slow_io_many_vdevs.ksh | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/tests/zfs-tests/tests/functional/events/zed_slow_io_many_vdevs.ksh b/tests/zfs-tests/tests/functional/events/zed_slow_io_many_vdevs.ksh new file mode 100755 index 000000000000..3357ae2e3510 --- /dev/null +++ b/tests/zfs-tests/tests/functional/events/zed_slow_io_many_vdevs.ksh @@ -0,0 +1,177 @@ +#!/bin/ksh -p +# +# CDDL HEADER START +# +# The contents of this file are subject to the terms of the +# Common Development and Distribution License (the "License"). +# You may not use this file except in compliance with the License. +# +# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE +# or https://opensource.org/licenses/CDDL-1.0. +# See the License for the specific language governing permissions +# and limitations under the License. +# +# When distributing Covered Code, include this CDDL HEADER in each +# file and include the License file at usr/src/OPENSOLARIS.LICENSE. +# If applicable, add the following below this CDDL HEADER, with the +# fields enclosed by brackets "[]" replaced with your own identifying +# information: Portions Copyright [yyyy] [name of copyright owner] +# +# CDDL HEADER END +# + +# +# Copyright (c) 2023, Klara Inc. +# + +# DESCRIPTION: +# Verify that delay events from multiple vdevs doesnt degrade +# +# STRATEGY: +# 1. Create a pool with a 3 disk raidz vdev +# 2. Inject slow io errors +# 3. Verify that ZED detects slow I/Os but doesn't degrade any vdevs +# + +. $STF_SUITE/include/libtest.shlib + +TESTDIR="$TEST_BASE_DIR/zed_slow_io" +VDEV1="$TEST_BASE_DIR/vdevfile1.$$" +VDEV2="$TEST_BASE_DIR/vdevfile2.$$" +VDEV3="$TEST_BASE_DIR/vdevfile3.$$" +VDEV4="$TEST_BASE_DIR/vdevfile4.$$" +VDEVS="$VDEV1 $VDEV2 $VDEV3 $VDEV4" +TESTPOOL="slow_io_pool" +FILEPATH="$TESTDIR/slow_io.testfile" + +OLD_SLOW_IO=$(get_tunable ZIO_SLOW_IO_MS) +OLD_SLOW_IO_EVENTS=$(get_tunable SLOW_IO_EVENTS_PER_SECOND) + +verify_runnable "both" + +function cleanup +{ + log_must zinject -c all + + # if pool still exists then something failed so log additional info + if poolexists $TESTPOOL ; then + log_note "$(zpool status -s $TESTPOOL)" + echo "=================== zed log search ===================" + grep "Diagnosis Engine" $ZEDLET_DIR/zed.log + destroy_pool $TESTPOOL + fi + log_must zed_stop + + log_must rm -f $VDEVS + log_must set_tunable64 ZIO_SLOW_IO_MS $OLD_SLOW_IO + log_must set_tunable64 SLOW_IO_EVENTS_PER_SECOND $OLD_SLOW_IO_EVENTS +} + +function start_slow_io +{ + for vdev in $VDEVS + do + log_must zpool set slow_io_n=4 $TESTPOOL $vdev + log_must zpool set slow_io_t=60 $TESTPOOL $vdev + done + zpool sync + + log_must set_tunable64 ZIO_SLOW_IO_MS 10 + log_must set_tunable64 SLOW_IO_EVENTS_PER_SECOND 1000 + + for vdev in $VDEVS + do + log_must zinject -d $vdev -D10:1 $TESTPOOL + done + zpool sync +} + +function stop_slow_io +{ + log_must set_tunable64 ZIO_SLOW_IO_MS $OLD_SLOW_IO + log_must set_tunable64 SLOW_IO_EVENTS_PER_SECOND $OLD_SLOW_IO_EVENTS + + log_must zinject -c all +} + +function multiple_slow_vdevs_test +{ + log_must truncate -s 1G $VDEVS + default_raidz_setup_noexit $VDEVS + + log_must zpool events -c + log_must zfs set compression=off $TESTPOOL + log_must zfs set primarycache=none $TESTPOOL + log_must zfs set recordsize=4K $TESTPOOL + + log_must dd if=/dev/urandom of=$FILEPATH bs=1M count=20 + zpool sync + + # + # Read the file with slow io injected on the disks + # This will cause multiple errors on each disk to trip ZED SERD + # + # pool: slow_io_pool + # state: ONLINE + # config: + # + # NAME STATE READ WRITE CKSUM SLOW + # slow_io_pool ONLINE 0 0 0 - + # raidz1-0 ONLINE 0 0 0 - + # /var/tmp/vdevfile1.499278 ONLINE 0 0 0 113 + # /var/tmp/vdevfile2.499278 ONLINE 0 0 0 109 + # /var/tmp/vdevfile3.499278 ONLINE 0 0 0 96 + # /var/tmp/vdevfile4.499278 ONLINE 0 0 0 109 + # + start_slow_io + dd if=$FILEPATH of=/dev/null bs=1M count=20 2>/dev/null + stop_slow_io + + # count events available for processing + typeset -i i=0 + typeset -i events=0 + while [[ $i -lt 60 ]]; do + events=$(zpool events | grep "ereport\.fs\.zfs.delay" | wc -l) + [[ $events -ge "50" ]] && break + i=$((i+1)) + sleep 1 + done + log_note "$events delay events found" + if [[ $events -lt "50" ]]; then + log_note "bailing: not enough events to complete the test" + destroy_pool $TESTPOOL + return + fi + + # + # give slow ZED a chance to process the delay events + # + typeset -i i=0 + typeset -i skips=0 + while [[ $i -lt 75 ]]; do + skips=$(grep "retiring case" \ + $ZEDLET_DIR/zed.log | wc -l) + [[ $skips -gt "0" ]] && break + i=$((i+1)) + sleep 1 + done + + log_note $skips degrade skips in ZED log after $i seconds + [ $skips -gt "0" ] || log_fail "expecting to see skips" + + degrades=$(grep "zpool_vdev_degrade" $ZEDLET_DIR/zed.log | wc -l) + log_note $degrades vdev degrades in ZED log + [ $degrades -eq "0" ] || \ + log_fail "expecting no degrade events, found $degrades" + + destroy_pool $TESTPOOL +} + +log_assert "Test ZED slow io across multiple vdevs" +log_onexit cleanup + +log_must zed_events_drain +log_must zed_start +multiple_slow_vdevs_test + +log_pass "Test ZED slow io across multiple vdevs" |