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ceph/qa/standalone/erasure-code/test-erasure-code.sh

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#!/usr/bin/env bash
#
# Copyright (C) 2014 Cloudwatt <libre.licensing@cloudwatt.com>
# Copyright (C) 2014, 2015 Red Hat <contact@redhat.com>
#
# Author: Loic Dachary <loic@dachary.org>
#
# 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=$1
shift
export CEPH_MON="127.0.0.1:7101" # git grep '\<7101\>' : there must be only one
export CEPH_ARGS
CEPH_ARGS+="--fsid=$(uuidgen) --auth-supported=none "
CEPH_ARGS+="--mon-host=$CEPH_MON --mon-osd-prime-pg-temp=false"
setup $dir || return 1
run_mon $dir a || return 1
run_mgr $dir x || return 1
# check that erasure code plugins are preloaded
CEPH_ARGS='' ceph --admin-daemon $(get_asok_path mon.a) log flush || return 1
grep 'load: jerasure.*lrc' $dir/mon.a.log || return 1
for id in $(seq 0 10) ; do
run_osd $dir $id || return 1
done
create_rbd_pool || return 1
wait_for_clean || return 1
# check that erasure code plugins are preloaded
CEPH_ARGS='' ceph --admin-daemon $(get_asok_path osd.0) log flush || return 1
grep 'load: jerasure.*lrc' $dir/osd.0.log || return 1
create_erasure_coded_pool ecpool || return 1
local funcs=${@:-$(set | sed -n -e 's/^\(TEST_[0-9a-z_]*\) .*/\1/p')}
for func in $funcs ; do
$func $dir || return 1
done
delete_pool ecpool || return 1
teardown $dir || return 1
}
function create_erasure_coded_pool() {
local poolname=$1
ceph osd erasure-code-profile set myprofile \
crush-failure-domain=osd || return 1
create_pool $poolname 12 12 erasure myprofile \
|| return 1
wait_for_clean || return 1
}
function rados_put_get() {
local dir=$1
local poolname=$2
local objname=${3:-SOMETHING}
for marker in AAA BBB CCCC DDDD ; do
printf "%*s" 1024 $marker
done > $dir/ORIGINAL
#
# get and put an object, compare they are equal
#
rados --pool $poolname put $objname $dir/ORIGINAL || return 1
rados --pool $poolname get $objname $dir/COPY || return 1
diff $dir/ORIGINAL $dir/COPY || return 1
rm $dir/COPY
#
# take out an OSD used to store the object and
# check the object can still be retrieved, which implies
# recovery
#
local -a initial_osds=($(get_osds $poolname $objname))
local last=$((${#initial_osds[@]} - 1))
ceph osd out ${initial_osds[$last]} || return 1
# give the osdmap up to 5 seconds to refresh
sleep 5
! get_osds $poolname $objname | grep '\<'${initial_osds[$last]}'\>' || return 1
rados --pool $poolname get $objname $dir/COPY || return 1
diff $dir/ORIGINAL $dir/COPY || return 1
ceph osd in ${initial_osds[$last]} || return 1
rm $dir/ORIGINAL
}
function rados_osds_out_in() {
local dir=$1
local poolname=$2
local objname=${3:-SOMETHING}
for marker in FFFF GGGG HHHH IIII ; do
printf "%*s" 1024 $marker
done > $dir/ORIGINAL
#
# get and put an object, compare they are equal
#
rados --pool $poolname put $objname $dir/ORIGINAL || return 1
rados --pool $poolname get $objname $dir/COPY || return 1
diff $dir/ORIGINAL $dir/COPY || return 1
rm $dir/COPY
#
# take out two OSDs used to store the object, wait for the cluster
# to be clean (i.e. all PG are clean and active) again which
# implies the PG have been moved to use the remaining OSDs. Check
# the object can still be retrieved.
#
wait_for_clean || return 1
local osds_list=$(get_osds $poolname $objname)
local -a osds=($osds_list)
for osd in 0 1 ; do
ceph osd out ${osds[$osd]} || return 1
done
wait_for_clean || return 1
#
# verify the object is no longer mapped to the osds that are out
#
for osd in 0 1 ; do
! get_osds $poolname $objname | grep '\<'${osds[$osd]}'\>' || return 1
done
rados --pool $poolname get $objname $dir/COPY || return 1
diff $dir/ORIGINAL $dir/COPY || return 1
#
# bring the osds back in, , wait for the cluster
# to be clean (i.e. all PG are clean and active) again which
# implies the PG go back to using the same osds as before
#
for osd in 0 1 ; do
ceph osd in ${osds[$osd]} || return 1
done
wait_for_clean || return 1
test "$osds_list" = "$(get_osds $poolname $objname)" || return 1
rm $dir/ORIGINAL
}
function TEST_rados_put_get_lrc_advanced() {
local dir=$1
local poolname=pool-lrc-a
local profile=profile-lrc-a
ceph osd erasure-code-profile set $profile \
plugin=lrc \
mapping=DD_ \
crush-steps='[ [ "chooseleaf", "osd", 0 ] ]' \
layers='[ [ "DDc", "" ] ]' || return 1
create_pool $poolname 12 12 erasure $profile \
|| return 1
rados_put_get $dir $poolname || return 1
delete_pool $poolname
ceph osd erasure-code-profile rm $profile
}
function TEST_rados_put_get_lrc_kml() {
local dir=$1
local poolname=pool-lrc
local profile=profile-lrc
ceph osd erasure-code-profile set $profile \
plugin=lrc \
k=4 m=2 l=3 \
crush-failure-domain=osd || return 1
create_pool $poolname 12 12 erasure $profile \
|| return 1
rados_put_get $dir $poolname || return 1
delete_pool $poolname
ceph osd erasure-code-profile rm $profile
}
function TEST_rados_put_get_isa() {
if ! erasure_code_plugin_exists isa ; then
echo "SKIP because plugin isa has not been built"
return 0
fi
local dir=$1
local poolname=pool-isa
ceph osd erasure-code-profile set profile-isa \
plugin=isa \
crush-failure-domain=osd || return 1
create_pool $poolname 1 1 erasure profile-isa \
|| return 1
rados_put_get $dir $poolname || return 1
delete_pool $poolname
}
function TEST_rados_put_get_jerasure() {
local dir=$1
rados_put_get $dir ecpool || return 1
local poolname=pool-jerasure
local profile=profile-jerasure
ceph osd erasure-code-profile set $profile \
plugin=jerasure \
k=4 m=2 \
crush-failure-domain=osd || return 1
create_pool $poolname 12 12 erasure $profile \
|| return 1
rados_put_get $dir $poolname || return 1
rados_osds_out_in $dir $poolname || return 1
delete_pool $poolname
ceph osd erasure-code-profile rm $profile
}
function TEST_rados_put_get_shec() {
local dir=$1
local poolname=pool-shec
local profile=profile-shec
ceph osd erasure-code-profile set $profile \
plugin=shec \
k=2 m=1 c=1 \
crush-failure-domain=osd || return 1
create_pool $poolname 12 12 erasure $profile \
|| return 1
rados_put_get $dir $poolname || return 1
delete_pool $poolname
ceph osd erasure-code-profile rm $profile
}
function TEST_alignment_constraints() {
local payload=ABC
echo "$payload" > $dir/ORIGINAL
#
# Verify that the rados command enforces alignment constraints
# imposed by the stripe width
# See http://tracker.ceph.com/issues/8622
#
local stripe_unit=$(ceph-conf --show-config-value osd_pool_erasure_code_stripe_unit)
eval local $(ceph osd erasure-code-profile get myprofile | grep k=)
local block_size=$((stripe_unit * k - 1))
dd if=/dev/zero of=$dir/ORIGINAL bs=$block_size count=2
rados --block-size=$block_size \
--pool ecpool put UNALIGNED $dir/ORIGINAL || return 1
rm $dir/ORIGINAL
}
function chunk_size() {
echo $(ceph-conf --show-config-value osd_pool_erasure_code_stripe_unit)
}
#
# By default an object will be split in two (k=2) with the first part
# of the object in the first OSD of the up set and the second part in
# the next OSD in the up set. This layout is defined by the mapping
# parameter and this function helps verify that the first and second
# part of the object are located in the OSD where they should be.
#
function verify_chunk_mapping() {
local dir=$1
local poolname=$2
local first=$3
local second=$4
local payload=$(printf '%*s' $(chunk_size) FIRST$poolname ; printf '%*s' $(chunk_size) SECOND$poolname)
echo -n "$payload" > $dir/ORIGINAL
rados --pool $poolname put SOMETHING$poolname $dir/ORIGINAL || return 1
rados --pool $poolname get SOMETHING$poolname $dir/COPY || return 1
local -a osds=($(get_osds $poolname SOMETHING$poolname))
for (( i = 0; i < ${#osds[@]}; i++ )) ; do
ceph daemon osd.${osds[$i]} flush_journal
done
diff $dir/ORIGINAL $dir/COPY || return 1
rm $dir/COPY
local -a osds=($(get_osds $poolname SOMETHING$poolname))
objectstore_tool $dir ${osds[$first]} SOMETHING$poolname get-bytes | grep --quiet FIRST$poolname || return 1
objectstore_tool $dir ${osds[$second]} SOMETHING$poolname get-bytes | grep --quiet SECOND$poolname || return 1
}
function TEST_chunk_mapping() {
local dir=$1
#
# mapping=DD_ is the default:
# first OSD (i.e. 0) in the up set has the first part of the object
# second OSD (i.e. 1) in the up set has the second part of the object
#
verify_chunk_mapping $dir ecpool 0 1 || return 1
ceph osd erasure-code-profile set remap-profile \
plugin=lrc \
layers='[ [ "cDD", "" ] ]' \
mapping='_DD' \
crush-steps='[ [ "choose", "osd", 0 ] ]' || return 1
ceph osd erasure-code-profile get remap-profile
create_pool remap-pool 12 12 erasure remap-profile \
|| return 1
#
# mapping=_DD
# second OSD (i.e. 1) in the up set has the first part of the object
# third OSD (i.e. 2) in the up set has the second part of the object
#
verify_chunk_mapping $dir remap-pool 1 2 || return 1
delete_pool remap-pool
ceph osd erasure-code-profile rm remap-profile
}
main test-erasure-code "$@"
# Local Variables:
# compile-command: "cd ../.. ; make -j4 && test/erasure-code/test-erasure-code.sh"
# End:
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