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--- решение_ceph [2021/05/29 12:03]
val
+++ решение_ceph [2026/10/19 19:27] (current)
val [MON]
@@ Line 1: / Line 1: @@
 ====== Решение Ceph ======
+  * [[https://youtu.be/OB5jysMLjIM|Разворачиваем распределенное отказоустойчивое хранилище Ceph за 45 минут]]
   * [[https://ru.wikipedia.org/wiki/Ceph|Ceph — свободная программная объектная сеть хранения (Материал из Википедии)]]
@@ Line 8: / Line 11: @@
   * [[http://onreader.mdl.ru/LearningCeph/content/index.html|Практическое руководство по разработке, реализации и управлению вашей управляемой программным обеспечением, массивно масштабируемой системы хранения Ceph]]
+  * [[http://onreader.mdl.ru/MasteringCeph.2ed/content/index.html|Полное руководство Ceph, 2е изд.]]
+  * [[http://onreader.mdl.ru/CephCookbook/content/index.html|Книга рецептов Ceph]]
 ===== Развертывание =====
   * [[https://docs.ceph.com/en/latest/install/manual-deployment/|MANUAL DEPLOYMENT]]
+  * [[https://www.server-world.info/en/note?os=Debian_11&p=ceph14&f=1|Debian 11 : Ceph Nautilus]]
 ==== Установка ====
 <code>
 nodeN# apt install ceph
+nodeN# ceph -v
 </code>
 ==== MON ====
+  * [[https://docs.ceph.com/en/latest/man/8/ceph-mon/|CEPH-MON – CEPH MONITOR DAEMON]]
 === Начальная конфигурация ===
@@ Line 27: / Line 37: @@
 	fsid = a7f64266-0894-4f1e-a635-d0aeaca0e993
 	mon initial members = node3,node4,node5
-	mon host = 192.168.13.3,192.168.13.4,192.168.13.5
+	mon host = 192.168.X.3,192.168.X.4,192.168.X.5
-	public network = 192.168.13.0/24
+	public network = 192.168.X.0/24
 	auth cluster required = none
 	auth service required = none
 	auth client required = none
-</code><code>
-node3#
-ssh-keygen
-ssh-copy-id node4
-ssh-copy-id node5
 </code><code>
 scp /etc/ceph/ceph.conf node4:/etc/ceph/
 scp /etc/ceph/ceph.conf node5:/etc/ceph/
 </code><code>
-monmaptool --create --add node3 192.168.13.3 --fsid a7f64266-0894-4f1e-a635-d0aeaca0e993 /tmp/monmap
+monmaptool --create --add node3 192.168.X.3 --fsid a7f64266-0894-4f1e-a635-d0aeaca0e993 /tmp/monmap
-monmaptool --add node4 192.168.13.4 --fsid a7f64266-0894-4f1e-a635-d0aeaca0e993 /tmp/monmap
+monmaptool --add node4 192.168.X.4 --fsid a7f64266-0894-4f1e-a635-d0aeaca0e993 /tmp/monmap
-monmaptool --add node5 192.168.13.5 --fsid a7f64266-0894-4f1e-a635-d0aeaca0e993 /tmp/monmap
+monmaptool --add node5 192.168.X.5 --fsid a7f64266-0894-4f1e-a635-d0aeaca0e993 /tmp/monmap
 </code><code>
 monmaptool --print /tmp/monmap
@@ Line 50: / Line 55: @@
 scp /tmp/monmap node5:/tmp/
 </code><code>
-bash -c '
+node3# bash -c '
 sudo -u ceph mkdir /var/lib/ceph/mon/ceph-node3
 ssh node4 sudo -u ceph mkdir /var/lib/ceph/mon/ceph-node4
@@ Line 56: / Line 61: @@
 '
 </code><code>
-bash -c '
+node3# bash -c '
 sudo -u ceph ceph-mon --mkfs -i node3 --monmap /tmp/monmap
 ssh node4 sudo -u ceph ceph-mon --mkfs -i node4 --monmap /tmp/monmap
@@ Line 62: / Line 67: @@
 '
 </code><code>
-ls -l /var/lib/ceph/mon/ceph-node3
+node3# ls -l /var/lib/ceph/mon/ceph-node3
 </code><code>
-bash -c '
+node3# bash -c '
 systemctl start ceph-mon@node3
 systemctl enable ceph-mon@node3
@@ Line 72: / Line 77: @@
 ssh node5 systemctl enable ceph-mon@node5
 '
+</code>
+  * [[https://www.suse.com/support/kb/doc/?id=000019960|Cluster status shows a "mons are allowing insecure global_id reclaim" health warning]]
+<code>
+node3# ceph mon enable-msgr2
+node3# ceph config set mon mon_warn_on_insecure_global_id_reclaim false
+node3# ceph config set mon mon_warn_on_insecure_global_id_reclaim_allowed false
 </code><code>
 # ceph -s
@@ Line 82: / Line 96: @@
 </code><code>
 MON_DOWN 1/3 mons down, quorum node4,node5
-    mon.node3 (rank 0) addr 192.168.13.3:6789/0 is down (out of quorum)
+    mon.node3 (rank 0) addr 192.168.X.3:6789/0 is down (out of quorum)
+</code>
+=== Замена MON ===
+<code>
+node3# ceph mon remove node4
+node3# ceph mon getmap -o /tmp/monmap
+node3# monmaptool --print /tmp/monmap
+node3# monmaptool --add node7 192.168.13.7 --fsid a7f64266-0894-4f1e-a635-d0aeaca0e993 /tmp/monmap
+node3# scp /tmp/monmap node7:/tmp/monmap
+node3# cat /etc/ceph/ceph.conf
+...
+        mon initial members = node3,node7,node5
+        mon host = 192.168.13.3,192.168.13.7,192.168.13.5
+...
+node3#
+scp /etc/ceph/ceph.conf node5:/etc/ceph/
+scp /etc/ceph/ceph.conf node6:/etc/ceph/
+scp /etc/ceph/ceph.conf node7:/etc/ceph/
+node7#
+sudo -u ceph mkdir /var/lib/ceph/mon/ceph-node7
+sudo -u ceph ceph-mon --mkfs -i node7 --monmap /tmp/monmap
+systemctl enable ceph-mon@node7 --now
+sudo -u ceph mkdir /var/lib/ceph/mgr/ceph-node7
+systemctl enable ceph-mgr@node7 --now
 </code>
+  * [[Технология KVM#Использование Ceph RBD в качестве диска]]
+  * [[Сервис iSCSI]]
 ==== MGR ====
+  * [[https://docs.ceph.com/en/latest/mgr/index.html|CEPH MANAGER DAEMON]]
 <code>
-bash -c '
+node3# bash -c '
 sudo -u ceph mkdir /var/lib/ceph/mgr/ceph-node3
 systemctl start ceph-mgr@node3
@@ Line 104: / Line 150: @@
 # ceph -s
-# ps ax | grep ceph
+debian13# ceph health detail
+debian13# ceph health mute MGR_MODULE_DEPENDENCY
 </code>
 ==== OSD ====
+  * [[https://docs.ceph.com/en/latest/man/8/ceph-osd/|CEPH-OSD – CEPH OBJECT STORAGE DAEMON]]
 === Начальная конфигурация ===
 <code>
-bash -c '
+# lsblk
+</code><code>
+node3# bash -c '
 ceph-volume lvm create --data /dev/sdb
 ssh node4 ceph-volume lvm create --data /dev/sdb
@@ Line 143: / Line 195: @@
 <code>
+ceph osd tree | grep down
 ceph osd safe-to-destroy osd.0
 OSD(s) 0 are safe to destroy without reducing data durability.
@@ Line 157: / Line 211: @@
 ceph osd crush reweight osd.2 0.00389
-node3.corp13.un:~# ceph osd df
+node3# ceph osd df
 ID CLASS WEIGHT  REWEIGHT SIZE    USE     AVAIL   %USE  VAR  PGS
    hdd       0  0.83000 4.00GiB 1.01GiB 2.99GiB 25.30 0.37   0
@@ Line 169: / Line 223: @@
 ==== OSD POOL ====
+  * [[https://docs.ceph.com/en/latest/rados/operations/pools/|POOLS]]
 === Расчет параметров и создание POOL ===
-<code>
-Total PGs = (Total_number_of_OSD * 100) / max_replication_count
-*100/3 = 166,6...
+  * [[https://docs.ceph.com/en/latest/rados/operations/placement-groups/|PLACEMENT GROUPS]]
-ceph osd pool create test-pool1 180
+<code>
+Total PGs = OSDs * 100 / pool_size
-ceph -s
+*100/3 = 133,3...
-...
+</code><code>
-    pgs:     180 active+clean
+# ceph osd pool create test-pool1 128
-ceph pg dump
+# ceph -s
+</code><code>
+...
+    health: HEALTH_WARN
+pool(s) do not have an application enabled
+...
+    pgs:     128 active+clean
+...
+</code><code>
+# ceph pg dump
-ceph osd lspools
+# ceph osd lspools
 </code>
 === Изменение параметров POOL ===
 <code>
-ceph osd pool set test-pool1 pg_num 250
+ceph osd pool set test-pool1 pg_num 256
-ceph osd pool set test-pool1 pgp_num 250
+ceph osd pool set test-pool1 pgp_num 160  ...  192  ...  224  ...  256
 ceph osd pool get test-pool1 size
@@ Line 200: / Line 264: @@
 ==== RBD POOL ====
+  * Reliable Autonomic Distributed Object Store = RADOS
   * [[https://docs.ceph.com/en/latest/rbd/rados-rbd-cmds/|BASIC BLOCK DEVICE COMMANDS]]
+  * [[https://docs.ceph.com/en/latest/man/8/rbd/|rbd – manage rados block device (RBD) images]]
 <code>
-ceph df
+node3# ceph df
-rbd pool init test-pool1
+node3# rbd pool init test-pool1
-rbd create -p test-pool1 rbd1 --size 1024
-rbd list test-pool1
+node3# ceph -s
-rbd info test-pool1/rbd1
-</code><code>
+</code>
-rbd resize --size 3G test-pool1/rbd1
-rbd resize --size 3584M test-pool1/rbd1
+  * Технология KVM [[Технология KVM#Использование Ceph RBD в качестве диска]]
+<code>
+node3# rbd create -p test-pool1 rbd1 --size 1G
+node3# rbd list test-pool1
+node3# rbd info test-pool1/rbd1
+node3# rbd status test-pool1/rbd1
+node3# rbd lock list test-pool1/rbd1
+node3# rbd device map test-pool1/rbd1
+/dev/rbd0
+# mount -t ntfs3 /dev/rbd0p1 /mnt/
+# umount /mnt/
+# rbd device unmap /dev/rbd0
+</code>
+  * Изменение размера блочного устройствва
+<code>
+node3# rbd resize --size 3584M test-pool1/rbd1
+node3# ###bash -c '
+systemctl restart tgt
+ssh node4 systemctl restart tgt
+ssh node5 systemctl restart tgt
+'
-nodeN# systemctl restart tgt
+node3# ### rbd rm test-pool1/rbd1
 </code>
@@ Line 235: / Line 333: @@
 scp /etc/tgt/conf.d/ceph.conf node5:/etc/tgt/conf.d/
 </code><code>
-bash -c '
+node3# bash -c '
 systemctl restart tgt
 ssh node4 systemctl restart tgt

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