proxmox 8.1.4でサーバを３台インストールして、cpehストレージ作ってみるかー、と適当に設定した。
基本は「Deploy Hyper-Converged Ceph Cluster」を見ながらやったんだけど、CephFSを作成するときに、手順だと「pveceph fs create –pg_num 128 –add-storage」と書いてあったんだけど、「pveceph fs create」だけで実行したらどうなるんだろ？と思ってやってみたところ、警告が出た
注:なお、結局のところ、指定しない場合のデフォルト値も128だった。
HEALTH_WARN: 1 pools have too many placement groups
Pool storagepool has 128 placement groups, should have 32
調べてみるとproxmoxのフォーラムに「CEPH pools have too many placement groups」という若干古め(2020年のpoxmox 6.3時代)のものが見つかった。
「pveceph pool ls」で現在の設定を確認
root@zstack137:~# ceph -v
ceph version 18.2.2 (e9fe820e7fffd1b7cde143a9f77653b73fcec748) reef (stable)
root@zstack137:~# pveversion
pve-manager/8.1.4/ec5affc9e41f1d79 (running kernel: 6.5.11-8-pve)
root@zstack137:~# pveceph pool ls
lqqqqqqqqqqqqqqqqqwqqqqqqwqqqqqqqqqqwqqqqqqqqwqqqqqqqqqqqqqwqqqqqqqqqqqqqqqqwqqqqqqqqqqqqqqqqqqqwqqqqqqqqqqqqqqqqqqqqqqqqqqwqqqqqqqqqqqqqqqqqqqqqqqqqqqwqqqqqqqqqqqqqqqqqwqqqqqqqqqqqqqqqqqqqqqqwqqqqqqqqqqqqk
x Name x Size x Min Size x PG Num x min. PG Num x Optimal PG Num x PG Autoscale Mode x PG Autoscale Target Size x PG Autoscale Target Ratio x Crush Rule Name x %-Used x Used x
tqqqqqqqqqqqqqqqqqnqqqqqqnqqqqqqqqqqnqqqqqqqqnqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqu
x .mgr x 3 x 2 x 1 x 1 x 1 x on x x x replicated_rule x 3.08950029648258e-06 x 1388544 x
tqqqqqqqqqqqqqqqqqnqqqqqqnqqqqqqqqqqnqqqqqqqqnqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqu
x cephfs_data x 3 x 2 x 32 x x 32 x on x x x replicated_rule x 0 x 0 x
tqqqqqqqqqqqqqqqqqnqqqqqqnqqqqqqqqqqnqqqqqqqqnqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqu
x cephfs_metadata x 3 x 2 x 32 x 16 x 16 x on x x x replicated_rule x 4.41906962578287e-07 x 198610 x
tqqqqqqqqqqqqqqqqqnqqqqqqnqqqqqqqqqqnqqqqqqqqnqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqu
x storagepool x 3 x 2 x 128 x x 32 x warn x x x replicated_rule x 0.0184257291257381 x 8436679796 x
mqqqqqqqqqqqqqqqqqvqqqqqqvqqqqqqqqqqvqqqqqqqqvqqqqqqqqqqqqqvqqqqqqqqqqqqqqqqvqqqqqqqqqqqqqqqqqqqvqqqqqqqqqqqqqqqqqqqqqqqqqqvqqqqqqqqqqqqqqqqqqqqqqqqqqqvqqqqqqqqqqqqqqqqqvqqqqqqqqqqqqqqqqqqqqqqvqqqqqqqqqqqqj
root@zstack137:~#
「ceph osd pool autoscale-status」
root@zstack137:~# ceph osd pool autoscale-status
POOL SIZE TARGET SIZE RATE RAW CAPACITY RATIO TARGET RATIO EFFECTIVE RATIO BIAS PG_NUM NEW PG_NUM AUTOSCALE BULK
.mgr 452.0k 3.0 449.9G 0.0000 1.0 1 on False
cephfs_data 0 3.0 449.9G 0.0000 1.0 32 on False
cephfs_metadata 66203 3.0 449.9G 0.0000 4.0 32 on False
storagepool 2681M 3.0 449.9G 0.0175 1.0 128 warn False
root@zstack137:~#
そういえば、むかし、cephをテスト構築した時もなんかあったな、と思い出して確認してみると2018年に「CephのOSD毎のPlacement Groupの数を確認する」というメモを残していた。
「ceph health」を実行してみると状況は違うようだった。
root@zstack137:~# ceph health
HEALTH_WARN 1 pools have too many placement groups
root@zstack137:~# ceph health detail
HEALTH_WARN 1 pools have too many placement groups
[WRN] POOL_TOO_MANY_PGS: 1 pools have too many placement groups
Pool storagepool has 128 placement groups, should have 32
root@zstack137:~#
root@zstack137:~# ceph -s
cluster:
id: 9e085d6a-77f3-41f1-8f6d-71fadc9c011b
health: HEALTH_WARN
1 pools have too many placement groups
services:
mon: 3 daemons, quorum zstack136,zstack135,zstack137 (age 3h)
mgr: zstack136(active, since 3h), standbys: zstack135
mds: 1/1 daemons up, 1 standby
osd: 9 osds: 9 up (since 3h), 9 in (since 3d)
data:
volumes: 1/1 healthy
pools: 4 pools, 193 pgs
objects: 716 objects, 2.7 GiB
usage: 8.3 GiB used, 442 GiB / 450 GiB avail
pgs: 193 active+clean
root@zstack137:~#
とはいえ、「ceph pg dump」の出力結果を整形して表示する下記コマンドが実行できるか確認してみる。
ceph pg dump | awk '
BEGIN { IGNORECASE = 1 }
/^PG_STAT/ { col=1; while($col!="UP") {col++}; col++ }
/^[0-9a-f]+\.[0-9a-f]+/ { match($0,/^[0-9a-f]+/); pool=substr($0, RSTART, RLENGTH); poollist[pool]=0;
up=$col; i=0; RSTART=0; RLENGTH=0; delete osds; while(match(up,/[0-9]+/)>0) { osds[++i]=substr(up,RSTART,RLENGTH); up = substr(up, RSTART+RLENGTH) }
for(i in osds) {array[osds[i],pool]++; osdlist[osds[i]];}
}
END {
printf("\n");
printf("pool :\t"); for (i in poollist) printf("%s\t",i); printf("| SUM \n");
for (i in poollist) printf("--------"); printf("----------------\n");
for (i in osdlist) { printf("osd.%i\t", i); sum=0;
for (j in poollist) { printf("%i\t", array[i,j]); sum+=array[i,j]; sumpool[j]+=array[i,j] }; printf("| %i\n",sum) }
for (i in poollist) printf("--------"); printf("----------------\n");
printf("SUM :\t"); for (i in poollist) printf("%s\t",sumpool[i]); printf("|\n");
}'
無事実行できた。
root@zstack137:~# ceph pg dump | awk '
BEGIN { IGNORECASE = 1 }
/^PG_STAT/ { col=1; while($col!="UP") {col++}; col++ }
/^[0-9a-f]+\.[0-9a-f]+/ { match($0,/^[0-9a-f]+/); pool=substr($0, RSTART, RLENGTH); poollist[pool]=0;
up=$col; i=0; RSTART=0; RLENGTH=0; delete osds; while(match(up,/[0-9]+/)>0) { osds[++i]=substr(up,RSTART,RLENGTH); up = substr(up, RSTART+RLENGTH) }
for(i in osds) {array[osds[i],pool]++; osdlist[osds[i]];}
}
END {
printf("\n");
printf("pool :\t"); for (i in poollist) printf("%s\t",i); printf("| SUM \n");
for (i in poollist) printf("--------"); printf("----------------\n");
for (i in osdlist) { printf("osd.%i\t", i); sum=0;
for (j in poollist) { printf("%i\t", array[i,j]); sum+=array[i,j]; sumpool[j]+=array[i,j] }; printf("| %i\n",sum) }
for (i in poollist) printf("--------"); printf("----------------\n");
printf("SUM :\t"); for (i in poollist) printf("%s\t",sumpool[i]); printf("|\n");
}'
dumped all
pool : 3 2 1 4 | SUM
------------------------------------------------
osd.3 4 5 1 13 | 23
osd.8 4 6 0 12 | 22
osd.6 2 4 0 15 | 21
osd.5 6 4 0 16 | 26
osd.2 3 3 0 15 | 21
osd.1 4 3 0 10 | 17
osd.4 1 1 0 16 | 18
osd.0 5 2 0 10 | 17
osd.7 3 4 0 21 | 28
------------------------------------------------
SUM : 32 32 1 128 |
root@zstack137:~#
poolによって差がありすぎている？
中国語のページで「ceph使用问题积累」というところがあって「HEALTH_WARN：pools have too many placement groups」と「HEALTH_WARN： mons are allowing insecure global_id reclaim」についての対処方法が載っている。
前者については↑で出てきたproxmoxフォーラム記事を参照元として「ceph mgr module disable pg_autoscaler」を実行してauto scale機能を無効化する、とある
後者については「ceph config set mon auth_allow_insecure_global_id_reclaim false」となっていた。
module設定変える前に「ceph mgr module ls」で状態確認
root@zstack137:~# ceph mgr module ls
MODULE
balancer on (always on)
crash on (always on)
devicehealth on (always on)
orchestrator on (always on)
pg_autoscaler on (always on)
progress on (always on)
rbd_support on (always on)
status on (always on)
telemetry on (always on)
volumes on (always on)
iostat on
nfs on
restful on
alerts -
influx -
insights -
localpool -
mirroring -
osd_perf_query -
osd_support -
prometheus -
selftest -
snap_schedule -
stats -
telegraf -
test_orchestrator -
zabbix -
root@zstack137:~#
SUSEのページにあるSUSE Enterprise Storage 7 DocumentationのAdministration and Operations Guide「12 Determine the cluster state」を見るといろいろな状態確認コマンドがあった。
root@zstack137:~# ceph df
--- RAW STORAGE ---
CLASS SIZE AVAIL USED RAW USED %RAW USED
hdd 450 GiB 442 GiB 8.3 GiB 8.3 GiB 1.85
TOTAL 450 GiB 442 GiB 8.3 GiB 8.3 GiB 1.85
--- POOLS ---
POOL ID PGS STORED OBJECTS USED %USED MAX AVAIL
.mgr 1 1 449 KiB 2 1.3 MiB 0 140 GiB
cephfs_data 2 32 0 B 0 0 B 0 140 GiB
cephfs_metadata 3 32 35 KiB 22 194 KiB 0 140 GiB
storagepool 4 128 2.6 GiB 692 7.9 GiB 1.84 140 GiB
root@zstack137:~# ceph df detail
--- RAW STORAGE ---
CLASS SIZE AVAIL USED RAW USED %RAW USED
hdd 450 GiB 442 GiB 8.3 GiB 8.3 GiB 1.85
TOTAL 450 GiB 442 GiB 8.3 GiB 8.3 GiB 1.85
--- POOLS ---
POOL ID PGS STORED (DATA) (OMAP) OBJECTS USED (DATA) (OMAP) %USED MAX AVAIL QUOTA OBJECTS QUOTA BYTES DIRTY USED COMPR UNDER COMPR
.mgr 1 1 449 KiB 449 KiB 0 B 2 1.3 MiB 1.3 MiB 0 B 0 140 GiB N/A N/A N/A 0 B 0 B
cephfs_data 2 32 0 B 0 B 0 B 0 0 B 0 B 0 B 0 140 GiB N/A N/A N/A 0 B 0 B
cephfs_metadata 3 32 35 KiB 18 KiB 17 KiB 22 194 KiB 144 KiB 50 KiB 0 140 GiB N/A N/A N/A 0 B 0 B
storagepool 4 128 2.6 GiB 2.6 GiB 3.0 KiB 692 7.9 GiB 7.9 GiB 9.1 KiB 1.84 140 GiB N/A N/A N/A 0 B 0 B
root@zstack137:~#
TOO_MANY_PGSの時の対処としていかが書かれている
TOO_MANY_PGS
The number of PGs in use is above the configurable threshold of mon_pg_warn_max_per_osd PGs per OSD. This can lead to higher memory usage for OSD daemons, slower peering after cluster state changes (for example OSD restarts, additions, or removals), and higher load on the Ceph Managers and Ceph Monitors.While the pg_num value for existing pools cannot be reduced, the pgp_num value can. This effectively co-locates some PGs on the same sets of OSDs, mitigating some of the negative impacts described above. The pgp_num value can be adjusted with:
proxmox「Deploy Hyper-Converged Ceph Cluster」のあたりをみると PG Autoscale Modeはwarnで設定されるのが標準であるようだ。
cephのautomated scalingを見ると「ceph config set global mon_target_pg_per_osd 100」で値を設定することが書かれているが、現在値の確認方法が書いてない。
ceph config get <who> <key>というのはわかったのだが、whoの部分がなんなのかがわからなかった。(globalではなかった)
「ceph config dump」を実行したところ、いま標準値から変更されているところであろう設定が出てきて、whoに該当するものとしてmonがあった。であればmon_target_pg_per_osdのwhoはmonだろうと試すと現在値らしきものが確認できた。
root@zstack137:~# ceph config dump
WHO MASK LEVEL OPTION VALUE RO
mon advanced auth_allow_insecure_global_id_reclaim false
root@zstack137:~# ceph config get mon mon_target_pg_per_osd
100
root@zstack137:~#
とりあえず、「ceph mgr module disable pg_autoscaler」を実行してみたのだが、変更不可だった
root@zstack137:~# ceph mgr module disable pg_autoscaler
Error EINVAL: module 'pg_autoscaler' cannot be disabled (always-on)
root@zstack137:~#
じゃあ、「ceph osd pool set storagepool pgp_num 32」を実行してpgp_numを128から32に変更してみる
root@zstack137:~# ceph osd pool stats
pool .mgr id 1
nothing is going on
pool cephfs_data id 2
nothing is going on
pool cephfs_metadata id 3
nothing is going on
pool storagepool id 4
nothing is going on
root@zstack137:~# ceph osd pool get storagepool pgp_num
pgp_num: 128
root@zstack137:~# ceph osd pool set storagepool pgp_num 32
set pool 4 pgp_num to 32
root@zstack137:~# ceph osd pool get storagepool pgp_num
pgp_num: 125
root@zstack137:~# ceph osd pool get storagepool pgp_num
pgp_num: 119
root@zstack137:~#
徐々に変更されていく模様
root@zstack137:~# ceph -s
cluster:
id: 9e085d6a-77f3-41f1-8f6d-71fadc9c011b
health: HEALTH_WARN
Reduced data availability: 1 pg peering
1 pools have too many placement groups
1 pools have pg_num > pgp_num
services:
mon: 3 daemons, quorum zstack136,zstack135,zstack137 (age 5h)
mgr: zstack136(active, since 5h), standbys: zstack135
mds: 1/1 daemons up, 1 standby
osd: 9 osds: 9 up (since 5h), 9 in (since 3d); 2 remapped pgs
data:
volumes: 1/1 healthy
pools: 4 pools, 193 pgs
objects: 716 objects, 2.7 GiB
usage: 8.4 GiB used, 442 GiB / 450 GiB avail
pgs: 0.518% pgs not active
16/2148 objects misplaced (0.745%)
190 active+clean
2 active+recovering
1 remapped+peering
io:
recovery: 2.0 MiB/s, 0 objects/s
root@zstack137:~# ceph health
HEALTH_WARN Reduced data availability: 1 pg peering; 1 pools have too many placement groups; 1 pools have pg_num > pgp_num
root@zstack137:~# ceph health detail
HEALTH_WARN 1 pools have too many placement groups; 1 pools have pg_num > pgp_num
[WRN] POOL_TOO_MANY_PGS: 1 pools have too many placement groups
Pool storagepool has 128 placement groups, should have 32
[WRN] SMALLER_PGP_NUM: 1 pools have pg_num > pgp_num
pool storagepool pg_num 128 > pgp_num 32
root@zstack137:~#
ある程度時間が経過したあと
root@zstack137:~# ceph health detail
HEALTH_WARN 1 pools have too many placement groups; 1 pools have pg_num > pgp_num
[WRN] POOL_TOO_MANY_PGS: 1 pools have too many placement groups
Pool storagepool has 128 placement groups, should have 32
[WRN] SMALLER_PGP_NUM: 1 pools have pg_num > pgp_num
pool storagepool pg_num 128 > pgp_num 32
root@zstack137:~# ceph pg dump | awk '
BEGIN { IGNORECASE = 1 }
/^PG_STAT/ { col=1; while($col!="UP") {col++}; col++ }
/^[0-9a-f]+\.[0-9a-f]+/ { match($0,/^[0-9a-f]+/); pool=substr($0, RSTART, RLENGTH); poollist[pool]=0;
up=$col; i=0; RSTART=0; RLENGTH=0; delete osds; while(match(up,/[0-9]+/)>0) { osds[++i]=substr(up,RSTART,RLENGTH); up = substr(up, RSTART+RLENGTH) }
for(i in osds) {array[osds[i],pool]++; osdlist[osds[i]];}
}
END {
printf("\n");
printf("pool :\t"); for (i in poollist) printf("%s\t",i); printf("| SUM \n");
for (i in poollist) printf("--------"); printf("----------------\n");
for (i in osdlist) { printf("osd.%i\t", i); sum=0;
for (j in poollist) { printf("%i\t", array[i,j]); sum+=array[i,j]; sumpool[j]+=array[i,j] }; printf("| %i\n",sum) }
for (i in poollist) printf("--------"); printf("----------------\n");
printf("SUM :\t"); for (i in poollist) printf("%s\t",sumpool[i]); printf("|\n");
}'
dumped all
pool : 3 2 1 4 | SUM
------------------------------------------------
osd.3 4 5 1 15 | 25
osd.8 4 6 0 16 | 26
osd.6 2 4 0 16 | 22
osd.5 6 4 0 4 | 14
osd.2 3 3 0 11 | 17
osd.1 4 3 0 13 | 20
osd.4 1 1 0 17 | 19
osd.0 5 2 0 20 | 27
osd.7 3 4 0 16 | 23
------------------------------------------------
SUM : 32 32 1 128 |
root@zstack137:~# ceph osd pool autoscale-status
POOL SIZE TARGET SIZE RATE RAW CAPACITY RATIO TARGET RATIO EFFECTIVE RATIO BIAS PG_NUM NEW PG_NUM AUTOSCALE BULK
.mgr 452.0k 3.0 449.9G 0.0000 1.0 1 on False
cephfs_data 0 3.0 449.9G 0.0000 1.0 32 on False
cephfs_metadata 66203 3.0 449.9G 0.0000 4.0 32 on False
storagepool 2681M 3.0 449.9G 0.0175 1.0 128 warn False
root@zstack137:~# pveceph pool ls
lqqqqqqqqqqqqqqqqqwqqqqqqwqqqqqqqqqqwqqqqqqqqwqqqqqqqqqqqqqwqqqqqqqqqqqqqqqqwqqqqqqqqqqqqqqqqqqqwqqqqqqqqqqqqqqqqqqqqqqqqqqwqqqqqqqqqqqqqqqqqqqqqqqqqqqwqqqqqqqqqqqqqqqqqwqqqqqqqqqqqqqqqqqqqqqqwqqqqqqqqqqqqk
x Name x Size x Min Size x PG Num x min. PG Num x Optimal PG Num x PG Autoscale Mode x PG Autoscale Target Size x PG Autoscale Target Ratio x Crush Rule Name x %-Used x Used x
tqqqqqqqqqqqqqqqqqnqqqqqqnqqqqqqqqqqnqqqqqqqqnqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqu
x .mgr x 3 x 2 x 1 x 1 x 1 x on x x x replicated_rule x 3.09735719383752e-06 x 1388544 x
tqqqqqqqqqqqqqqqqqnqqqqqqnqqqqqqqqqqnqqqqqqqqnqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqu
x cephfs_data x 3 x 2 x 32 x x 32 x on x x x replicated_rule x 0 x 0 x
tqqqqqqqqqqqqqqqqqnqqqqqqnqqqqqqqqqqnqqqqqqqqnqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqu
x cephfs_metadata x 3 x 2 x 32 x 16 x 16 x on x x x replicated_rule x 4.43030785390874e-07 x 198610 x
tqqqqqqqqqqqqqqqqqnqqqqqqnqqqqqqqqqqnqqqqqqqqnqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqu
x storagepool x 3 x 2 x 128 x x 32 x warn x x x replicated_rule x 0.018471721559763 x 8436679796 x
mqqqqqqqqqqqqqqqqqvqqqqqqvqqqqqqqqqqvqqqqqqqqvqqqqqqqqqqqqqvqqqqqqqqqqqqqqqqvqqqqqqqqqqqqqqqqqqqvqqqqqqqqqqqqqqqqqqqqqqqqqqvqqqqqqqqqqqqqqqqqqqqqqqqqqqvqqqqqqqqqqqqqqqqqvqqqqqqqqqqqqqqqqqqqqqqvqqqqqqqqqqqqj
root@zstack137:~#
pg_numを減らせる？
root@zstack137:~# ceph osd pool get storagepool pg_num
pg_num: 128
root@zstack137:~# ceph osd pool set storagepool pg_num 32
set pool 4 pg_num to 32
root@zstack137:~# ceph osd pool get storagepool pg_num
pg_num: 128
root@zstack137:~# ceph osd pool get storagepool pg_num
pg_num: 124
root@zstack137:~#
徐々に減ってる
ステータスはHEALTH_OLに変わった
root@zstack137:~# ceph osd pool get storagepool pg_num
pg_num: 119
root@zstack137:~# ceph health detail
HEALTH_OK
root@zstack137:~# pveceph pool ls
lqqqqqqqqqqqqqqqqqwqqqqqqwqqqqqqqqqqwqqqqqqqqwqqqqqqqqqqqqqwqqqqqqqqqqqqqqqqwqqqqqqqqqqqqqqqqqqqwqqqqqqqqqqqqqqqqqqqqqqqqqqwqqqqqqqqqqqqqqqqqqqqqqqqqqqwqqqqqqqqqqqqqqqqqwqqqqqqqqqqqqqqqqqqqqqqwqqqqqqqqqqqqk
x Name x Size x Min Size x PG Num x min. PG Num x Optimal PG Num x PG Autoscale Mode x PG Autoscale Target Size x PG Autoscale Target Ratio x Crush Rule Name x %-Used x Used x
tqqqqqqqqqqqqqqqqqnqqqqqqnqqqqqqqqqqnqqqqqqqqnqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqu
x .mgr x 3 x 2 x 1 x 1 x 1 x on x x x replicated_rule x 3.10063592223742e-06 x 1388544 x
tqqqqqqqqqqqqqqqqqnqqqqqqnqqqqqqqqqqnqqqqqqqqnqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqu
x cephfs_data x 3 x 2 x 32 x x 32 x on x x x replicated_rule x 0 x 0 x
tqqqqqqqqqqqqqqqqqnqqqqqqnqqqqqqqqqqnqqqqqqqqnqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqu
x cephfs_metadata x 3 x 2 x 32 x 16 x 16 x on x x x replicated_rule x 4.43499772018185e-07 x 198610 x
tqqqqqqqqqqqqqqqqqnqqqqqqnqqqqqqqqqqnqqqqqqqqnqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqu
x storagepool x 3 x 2 x 117 x x 32 x warn x x x replicated_rule x 0.0184909123927355 x 8436679796 x
mqqqqqqqqqqqqqqqqqvqqqqqqvqqqqqqqqqqvqqqqqqqqvqqqqqqqqqqqqqvqqqqqqqqqqqqqqqqvqqqqqqqqqqqqqqqqqqqvqqqqqqqqqqqqqqqqqqqqqqqqqqvqqqqqqqqqqqqqqqqqqqqqqqqqqqvqqqqqqqqqqqqqqqqqvqqqqqqqqqqqqqqqqqqqqqqvqqqqqqqqqqqqj
root@zstack137:~#
「ceph osd pool autoscale-status」の方のPG_NUMは即反映
root@zstack137:~# ceph osd pool autoscale-status
POOL SIZE TARGET SIZE RATE RAW CAPACITY RATIO TARGET RATIO EFFECTIVE RATIO BIAS PG_NUM NEW PG_NUM AUTOSCALE BULK
.mgr 452.0k 3.0 449.9G 0.0000 1.0 1 on False
cephfs_data 0 3.0 449.9G 0.0000 1.0 32 on False
cephfs_metadata 66203 3.0 449.9G 0.0000 4.0 32 on False
storagepool 2705M 3.0 449.9G 0.0176 1.0 32 warn False
root@zstack137:~#
しばらく実行したらHEALTH_WARNになったときもあったが、比較的すぐにHEALTH_OKに戻ったりした。
root@zstack137:~# ceph health detail
HEALTH_WARN Reduced data availability: 2 pgs inactive, 2 pgs peering
[WRN] PG_AVAILABILITY: Reduced data availability: 2 pgs inactive, 2 pgs peering
pg 4.22 is stuck peering for 2d, current state peering, last acting [6,5,2]
pg 4.62 is stuck peering for 6h, current state peering, last acting [6,5,2]
root@zstack137:~#
しばらく時間がたって変更が終わったあとに状態をとってみた
root@zstack137:~# ceph health detail
HEALTH_OK
root@zstack137:~# pveceph pool ls
lqqqqqqqqqqqqqqqqqwqqqqqqwqqqqqqqqqqwqqqqqqqqwqqqqqqqqqqqqqwqqqqqqqqqqqqqqqqwqqqqqqqqqqqqqqqqqqqwqqqqqqqqqqqqqqqqqqqqqqqqqqwqqqqqqqqqqqqqqqqqqqqqqqqqqqwqqqqqqqqqqqqqqqqqwqqqqqqqqqqqqqqqqqqqqqqwqqqqqqqqqqqqk
x Name x Size x Min Size x PG Num x min. PG Num x Optimal PG Num x PG Autoscale Mode x PG Autoscale Target Size x PG Autoscale Target Ratio x Crush Rule Name x %-Used x Used x
tqqqqqqqqqqqqqqqqqnqqqqqqnqqqqqqqqqqnqqqqqqqqnqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqu
x .mgr x 3 x 2 x 1 x 1 x 1 x on x x x replicated_rule x 3.13595910483855e-06 x 1388544 x
tqqqqqqqqqqqqqqqqqnqqqqqqnqqqqqqqqqqnqqqqqqqqnqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqu
x cephfs_data x 3 x 2 x 32 x x 32 x on x x x replicated_rule x 0 x 0 x
tqqqqqqqqqqqqqqqqqnqqqqqqnqqqqqqqqqqnqqqqqqqqnqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqu
x cephfs_metadata x 3 x 2 x 32 x 16 x 16 x on x x x replicated_rule x 4.4855224246021e-07 x 198610 x
tqqqqqqqqqqqqqqqqqnqqqqqqnqqqqqqqqqqnqqqqqqqqnqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqqqqqqqqqqqnqqqqqqqqqqqqu
x storagepool x 3 x 2 x 32 x x 32 x warn x x x replicated_rule x 0.0186976287513971 x 8436679796 x
mqqqqqqqqqqqqqqqqqvqqqqqqvqqqqqqqqqqvqqqqqqqqvqqqqqqqqqqqqqvqqqqqqqqqqqqqqqqvqqqqqqqqqqqqqqqqqqqvqqqqqqqqqqqqqqqqqqqqqqqqqqvqqqqqqqqqqqqqqqqqqqqqqqqqqqvqqqqqqqqqqqqqqqqqvqqqqqqqqqqqqqqqqqqqqqqvqqqqqqqqqqqqj
root@zstack137:~# ceph -s
cluster:
id: 9e085d6a-77f3-41f1-8f6d-71fadc9c011b
health: HEALTH_OK
services:
mon: 3 daemons, quorum zstack136,zstack135,zstack137 (age 6h)
mgr: zstack136(active, since 6h), standbys: zstack135
mds: 1/1 daemons up, 1 standby
osd: 9 osds: 9 up (since 6h), 9 in (since 3d)
data:
volumes: 1/1 healthy
pools: 4 pools, 97 pgs
objects: 716 objects, 2.7 GiB
usage: 8.6 GiB used, 441 GiB / 450 GiB avail
pgs: 97 active+clean
root@zstack137:~# ceph df
--- RAW STORAGE ---
CLASS SIZE AVAIL USED RAW USED %RAW USED
hdd 450 GiB 441 GiB 8.7 GiB 8.7 GiB 1.94
TOTAL 450 GiB 441 GiB 8.7 GiB 8.7 GiB 1.94
--- POOLS ---
POOL ID PGS STORED OBJECTS USED %USED MAX AVAIL
.mgr 1 1 449 KiB 2 1.3 MiB 0 137 GiB
cephfs_data 2 32 0 B 0 0 B 0 137 GiB
cephfs_metadata 3 32 35 KiB 22 194 KiB 0 137 GiB
storagepool 4 32 2.7 GiB 692 8.0 GiB 1.89 137 GiB
root@zstack137:~#
とりあえず対処できた模様？