Merge "mariadb: fix cluster recovery"

ansible/roles/mariadb/tasks/recover_cluster.yml

@@ -49,7 +49,7 @@
     # WSREP: Recovered position: <UUID>:<seqno>.
     - name: Get MariaDB wsrep recovery seqno
       become: true
-      shell: tail -n 200 /tmp/mariadb_tmp.log | awk -F" " '$0~/Recovered position/{print $NF;exit;}' | awk -F":" '{print $2}'
+      shell: awk -F" " '/Recovered position/{seqno=$NF} END{split(seqno, a, ":"); print a[2]}' /tmp/mariadb_tmp.log
       register: wsrep_recovery_seqno
 
     - name: Removing MariaDB log file from /tmp

releasenotes/notes/fix_mariadb_cluster_recovery-1a48db23cb99d4c0.yaml

+---
+fixes:
+  - |
+    Fixed an issue where the MariaDB Cluster recovery process would fail if the
+    sequence number was not found in the logs. The recovery process now checks
+    the complete log file for the sequence number and recovers the cluster.
+    See `LP#1821173 <https://bugs.launchpad.net/kolla-ansible/+bug/1821173>`__
+    for details.