| #!/bin/ksh -p |
| # |
| # CDDL HEADER START |
| # |
| # This file and its contents are supplied under the terms of the |
| # Common Development and Distribution License ("CDDL"), version 1.0. |
| # You may only use this file in accordance with the terms of version |
| # 1.0 of the CDDL. |
| # |
| # A full copy of the text of the CDDL should have accompanied this |
| # source. A copy of the CDDL is also available via the Internet at |
| # http://www.illumos.org/license/CDDL. |
| # |
| # CDDL HEADER END |
| # |
| |
| # |
| # Copyright (c) 2017 by Lawrence Livermore National Security, LLC. |
| # |
| |
| # DESCRIPTION: |
| # zfs_multihost_history should report both writes issued and gaps |
| # |
| # STRATEGY: |
| # 1. Create a 2-vdev pool with mmp enabled |
| # 2. Delay writes by 2*MMP_INTERVAL_DEFAULT |
| # 3. Check multihost_history for both issued writes, and for gaps where |
| # no write could be issued because all vdevs are busy |
| # |
| # During the first MMP_INTERVAL period 2 MMP writes will be issued - one to |
| # each vdev. At the third scheduled attempt to write, at time t0+MMP_INTERVAL, |
| # both vdevs will still have outstanding writes, so a skipped write entry will |
| # be recorded in the multihost_history. |
| |
| |
| . $STF_SUITE/include/libtest.shlib |
| . $STF_SUITE/tests/functional/mmp/mmp.cfg |
| . $STF_SUITE/tests/functional/mmp/mmp.kshlib |
| |
| verify_runnable "both" |
| |
| function cleanup |
| { |
| log_must zinject -c all |
| mmp_pool_destroy $MMP_POOL $MMP_DIR |
| log_must mmp_clear_hostid |
| } |
| |
| log_assert "zfs_multihost_history records writes and skipped writes" |
| log_onexit cleanup |
| |
| mmp_pool_create_simple $MMP_POOL $MMP_DIR |
| log_must zinject -d $MMP_DIR/vdev1 -D$((2*MMP_INTERVAL_DEFAULT)):10 $MMP_POOL |
| log_must zinject -d $MMP_DIR/vdev2 -D$((2*MMP_INTERVAL_DEFAULT)):10 $MMP_POOL |
| |
| mmp_writes=$(count_mmp_writes $MMP_POOL $((MMP_INTERVAL_DEFAULT/1000))) |
| mmp_skips=$(count_skipped_mmp_writes $MMP_POOL $((MMP_INTERVAL_DEFAULT/1000))) |
| |
| if [ $mmp_writes -lt 1 ]; then |
| log_fail "mmp writes entries missing when delays injected" |
| fi |
| |
| if [ $mmp_skips -lt 1 ]; then |
| log_fail "mmp skipped write entries missing when delays injected" |
| fi |
| |
| log_pass "zfs_multihost_history records writes and skipped writes" |