ceph/qa/standalone/scrub/osd-recovery-scrub.sh
David Zafman eec821b6e5 test: osd-recovery-scrub.sh: Test fails if no scrubs happened for a recovering pg
Change TEST_recovery_scrub_2 to create more objects and use
osd_recovery_sleep to prevent recovery from finihing before
we start to scrub.  Verify that at least 1 scrub was started
while the pg was reovering.

Fixes: https://tracker.ceph.com/issues/49779

Signed-off-by: David Zafman <dzafman@redhat.com>
2021-03-14 16:19:46 -07:00

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#! /usr/bin/env bash
#
# Copyright (C) 2017 Red Hat <contact@redhat.com>
#
# Author: David Zafman <dzafman@redhat.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU Library Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Library Public License for more details.
#
source $CEPH_ROOT/qa/standalone/ceph-helpers.sh
function run() {
local dir=$1
shift
export CEPH_MON="127.0.0.1:7124" # git grep '\<7124\>' : there must be only one
export CEPH_ARGS
CEPH_ARGS+="--fsid=$(uuidgen) --auth-supported=none "
CEPH_ARGS+="--mon-host=$CEPH_MON "
export -n CEPH_CLI_TEST_DUP_COMMAND
local funcs=${@:-$(set | sed -n -e 's/^\(TEST_[0-9a-z_]*\) .*/\1/p')}
for func in $funcs ; do
$func $dir || return 1
done
}
# Simple test for "not scheduling scrubs due to active recovery"
# OSD::sched_scrub() called on all OSDs during ticks
function TEST_recovery_scrub_1() {
local dir=$1
local poolname=test
TESTDATA="testdata.$$"
OSDS=4
PGS=1
OBJECTS=100
ERRORS=0
setup $dir || return 1
run_mon $dir a --osd_pool_default_size=1 --mon_allow_pool_size_one=true \
--osd_scrub_interval_randomize_ratio=0.0 || return 1
run_mgr $dir x || return 1
for osd in $(seq 0 $(expr $OSDS - 1))
do
run_osd $dir $osd --osd_scrub_during_recovery=false || return 1
done
# Create a pool with $PGS pgs
create_pool $poolname $PGS $PGS
wait_for_clean || return 1
poolid=$(ceph osd dump | grep "^pool.*[']test[']" | awk '{ print $2 }')
ceph pg dump pgs
dd if=/dev/urandom of=$TESTDATA bs=1M count=50
for i in $(seq 1 $OBJECTS)
do
rados -p $poolname put obj${i} $TESTDATA
done
rm -f $TESTDATA
ceph osd pool set $poolname size 4
# Wait for recovery to start
set -o pipefail
count=0
while(true)
do
if ceph --format json pg dump pgs |
jq '.pg_stats | [.[] | .state | contains("recovering")]' | grep -q true
then
break
fi
sleep 2
if test "$count" -eq "10"
then
echo "Recovery never started"
return 1
fi
count=$(expr $count + 1)
done
set +o pipefail
ceph pg dump pgs
sleep 10
# Work around for http://tracker.ceph.com/issues/38195
kill_daemons $dir #|| return 1
declare -a err_strings
err_strings[0]="not scheduling scrubs due to active recovery"
for osd in $(seq 0 $(expr $OSDS - 1))
do
grep "not scheduling scrubs" $dir/osd.${osd}.log
done
for err_string in "${err_strings[@]}"
do
found=false
count=0
for osd in $(seq 0 $(expr $OSDS - 1))
do
if grep -q "$err_string" $dir/osd.${osd}.log
then
found=true
count=$(expr $count + 1)
fi
done
if [ "$found" = "false" ]; then
echo "Missing log message '$err_string'"
ERRORS=$(expr $ERRORS + 1)
fi
[ $count -eq $OSDS ] || return 1
done
teardown $dir || return 1
if [ $ERRORS != "0" ];
then
echo "TEST FAILED WITH $ERRORS ERRORS"
return 1
fi
echo "TEST PASSED"
return 0
}
##
# a modified version of wait_for_scrub(), which terminates if the Primary
# of the to-be-scrubbed PG changes
#
# Given the *last_scrub*, wait for scrub to happen on **pgid**. It
# will fail if scrub does not complete within $TIMEOUT seconds. The
# repair is complete whenever the **get_last_scrub_stamp** function
# reports a timestamp different from the one given in argument.
#
# @param pgid the id of the PG
# @param the primary OSD when started
# @param last_scrub timestamp of the last scrub for *pgid*
# @return 0 on success, 1 on error
#
function wait_for_scrub_mod() {
local pgid=$1
local orig_primary=$2
local last_scrub="$3"
local sname=${4:-last_scrub_stamp}
for ((i=0; i < $TIMEOUT; i++)); do
sleep 0.2
if test "$(get_last_scrub_stamp $pgid $sname)" '>' "$last_scrub" ; then
return 0
fi
sleep 1
# are we still the primary?
local current_primary=`bin/ceph pg $pgid query | jq '.acting[0]' `
if [ $orig_primary != $current_primary ]; then
echo $orig_primary no longer primary for $pgid
return 0
fi
done
return 1
}
##
# A modified version of pg_scrub()
#
# Run scrub on **pgid** and wait until it completes. The pg_scrub
# function will fail if repair does not complete within $TIMEOUT
# seconds. The pg_scrub is complete whenever the
# **get_last_scrub_stamp** function reports a timestamp different from
# the one stored before starting the scrub, or whenever the Primary
# changes.
#
# @param pgid the id of the PG
# @return 0 on success, 1 on error
#
function pg_scrub_mod() {
local pgid=$1
local last_scrub=$(get_last_scrub_stamp $pgid)
# locate the primary
local my_primary=`bin/ceph pg $pgid query | jq '.acting[0]' `
local recovery=false
ceph pg scrub $pgid
#ceph --format json pg dump pgs | jq ".pg_stats | .[] | select(.pgid == \"$pgid\") | .state"
if ceph --format json pg dump pgs | jq ".pg_stats | .[] | select(.pgid == \"$pgid\") | .state" | grep -q recovering
then
recovery=true
fi
wait_for_scrub_mod $pgid $my_primary "$last_scrub" || return 1
if test $recovery = "true"
then
return 2
fi
}
# Same as wait_background() except that it checks for exit code 2 and bumps recov_scrub_count
function wait_background_check() {
# We extract the PIDS from the variable name
pids=${!1}
return_code=0
for pid in $pids; do
wait $pid
retcode=$?
if test $retcode -eq 2
then
recov_scrub_count=$(expr $recov_scrub_count + 1)
elif test $retcode -ne 0
then
# If one process failed then return 1
return_code=1
fi
done
# We empty the variable reporting that all process ended
eval "$1=''"
return $return_code
}
# osd_scrub_during_recovery=true make sure scrub happens
function TEST_recovery_scrub_2() {
local dir=$1
local poolname=test
TESTDATA="testdata.$$"
OSDS=8
PGS=32
OBJECTS=40
setup $dir || return 1
run_mon $dir a --osd_pool_default_size=1 --mon_allow_pool_size_one=true \
--osd_scrub_interval_randomize_ratio=0.0 || return 1
run_mgr $dir x || return 1
for osd in $(seq 0 $(expr $OSDS - 1))
do
run_osd $dir $osd --osd_scrub_during_recovery=true --osd_recovery_sleep=10 || return 1
done
# Create a pool with $PGS pgs
create_pool $poolname $PGS $PGS
wait_for_clean || return 1
poolid=$(ceph osd dump | grep "^pool.*[']test[']" | awk '{ print $2 }')
dd if=/dev/urandom of=$TESTDATA bs=1M count=50
for i in $(seq 1 $OBJECTS)
do
rados -p $poolname put obj${i} $TESTDATA
done
rm -f $TESTDATA
ceph osd pool set $poolname size 3
ceph pg dump pgs
# Wait for recovery to start
count=0
while(true)
do
#ceph --format json pg dump pgs | jq '.pg_stats | [.[].state]'
if test $(ceph --format json pg dump pgs |
jq '.pg_stats | [.[].state]'| grep recovering | wc -l) -ge 2
then
break
fi
sleep 2
if test "$count" -eq "10"
then
echo "Not enough recovery started simultaneously"
return 1
fi
count=$(expr $count + 1)
done
ceph pg dump pgs
pids=""
recov_scrub_count=0
for pg in $(seq 0 $(expr $PGS - 1))
do
run_in_background pids pg_scrub_mod $poolid.$(printf "%x" $pg)
done
wait_background_check pids
return_code=$?
if [ $return_code -ne 0 ]; then return $return_code; fi
ERRORS=0
if test $recov_scrub_count -eq 0
then
echo "No scrubs occurred while PG recovering"
ERRORS=$(expr $ERRORS + 1)
fi
pidfile=$(find $dir 2>/dev/null | grep $name_prefix'[^/]*\.pid')
pid=$(cat $pidfile)
if ! kill -0 $pid
then
echo "OSD crash occurred"
#tail -100 $dir/osd.0.log
ERRORS=$(expr $ERRORS + 1)
fi
# Work around for http://tracker.ceph.com/issues/38195
kill_daemons $dir #|| return 1
declare -a err_strings
err_strings[0]="not scheduling scrubs due to active recovery"
for osd in $(seq 0 $(expr $OSDS - 1))
do
grep "not scheduling scrubs" $dir/osd.${osd}.log
done
for err_string in "${err_strings[@]}"
do
found=false
for osd in $(seq 0 $(expr $OSDS - 1))
do
if grep "$err_string" $dir/osd.${osd}.log > /dev/null;
then
found=true
fi
done
if [ "$found" = "true" ]; then
echo "Found log message not expected '$err_string'"
ERRORS=$(expr $ERRORS + 1)
fi
done
teardown $dir || return 1
if [ $ERRORS != "0" ];
then
echo "TEST FAILED WITH $ERRORS ERRORS"
return 1
fi
echo "TEST PASSED"
return 0
}
main osd-recovery-scrub "$@"
# Local Variables:
# compile-command: "cd build ; make -j4 && \
# ../qa/run-standalone.sh osd-recovery-scrub.sh"
# End: