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[Julien Langlois <1734225@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

The CTDB deployed /etc/ctdb/events.d/50.samba script contain the following code to detect the smbd/nmbd service name:
---
case $CTDB_INIT_STYLE in
        suse)
                CTDB_SERVICE_SMB=${CTDB_SERVICE_SMB:-smb}
                CTDB_SERVICE_NMB=${CTDB_SERVICE_NMB:-nmb}
                ;;
        debian)
                CTDB_SERVICE_SMB=${CTDB_SERVICE_SMB:-samba}
                CTDB_SERVICE_NMB=${CTDB_SERVICE_NMB:-""}
                ;;
        *)
                # Use redhat style as default:
                CTDB_SERVICE_SMB=${CTDB_SERVICE_SMB:-smb}
                CTDB_SERVICE_NMB=${CTDB_SERVICE_NMB:-""}
                ;;
esac
---

It detects Ubuntu as Debian (/etc/ctdb/functions) and so define that the
smb service is named "samba" and the nmb service does not exists.

That could be OK since Samba deploy an "samba" init script as well as
smbd and nmbd. Except, this init script does not really work to start
smbd and nmbd.

To make CTDB happy, the previous code must be modified:
--- 50.samba.orig	2017-11-23 23:34:35.146314429 +0000
+++ 50.samba	2017-11-23 23:35:08.161814684 +0000
@@ -14,8 +14,8 @@
 		CTDB_SERVICE_NMB=${CTDB_SERVICE_NMB:-nmb}
 		;;
 	debian)
-		CTDB_SERVICE_SMB=${CTDB_SERVICE_SMB:-samba}
-		CTDB_SERVICE_NMB=${CTDB_SERVICE_NMB:-""}
+		CTDB_SERVICE_SMB=smbd
+		CTDB_SERVICE_NMB=nmbd
 		;;
 	*)
 		# Use redhat style as default:


I reproduced this issue on both Ubuntu 16.04 and 14.04. But it does not exists on Debian Stretch (the 50.samba has been updated).


An easier workaround to avoid updating the 50.samba script is to set those 2 service name in the /etc/default/ctdb:

CTDB_SERVICE_SMB=smbd
CTDB_SERVICE_NMB=nmbd

** Affects: samba (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: ctdb

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https://bugs.launchpad.net/bugs/1734225

Title:
  Invalid service name defined in /etc/ctdb/events.d/50.samba

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