Displaying 20 results from an estimated 51 matches for "lmaster".
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2011 Apr 11
1
[CTDB] how does LMASTER know where the record is stored?
Greetings list,
I was looking at the wiki "samba and clustering" and a ctdb.pdf, admittedly
both are quite old (2006 or 2007) and I don't know how things change over
years, but I just have two questions about LMASTER:
< this is from pdf >
LMASTER fixed
? LMASTER is based on record key only
? LMASTER knows where the record is stored
? new records are stored on LMASTER
Q1. From the output of "ctdb status" I can see that LMASTER is bacially
configured as the node itself, then how does each node k...
2014 Jul 08
1
smbd does not start under ctdb
Hi
2 node drbd cluster with ocfs2.
both nodes:
openSUSE 4.1.9 with drbd 8.4 and ctdbd 2.3
All seems OK with ctdb:
n1:
ctdb status
Number of nodes:2
pnn:0 192.168.0.10 OK (THIS NODE)
pnn:1 192.168.0.11 OK
Generation:1187222392
Size:2
hash:0 lmaster:0
hash:1 lmaster:1
Recovery mode:NORMAL (0)
Recovery master:0
n2:
ctdb status
Number of nodes:2
pnn:0 192.168.0.10 OK
pnn:1 192.168.0.11 OK (THIS NODE)
Generation:1187222392
Size:2
hash:0 lmaster:0
hash:1 lmaster:1
Recovery mode:NORMAL (0)
Recovery master:0
But we cannot start smbd:
Maxim...
2016 Nov 09
4
CTDB and samba private dir (+ldap)
...ome howto writers would say to put "private dir on the FS
cluster" - one question I have: is this correct? necessary?
I have partial success, I get:
$ ctdb status
Number of nodes:2
pnn:0 10.5.6.32 OK
pnn:1 10.5.6.49 UNHEALTHY (THIS NODE)
Generation:323266562
Size:2
hash:0 lmaster:0
hash:1 lmaster:1
Recovery mode:NORMAL (0)
Recovery master:0
I use:
passdb backend = ldapsam:"ldapi:///var/run/ldapi"
idmap backend = ldap:"ldapi:///var/run/ldapi"
and on that one "unhealthy" node I see:
50.samba: ERROR: smb.conf cache create failed
would y...
2016 Aug 31
3
status of Continuous availability in SMB3
...ient: Windows 8 Pro
root at node0:~# samba --version
Version 4.3.9-Ubuntu
root at node0:~# ctdb version
CTDB version: 2.5.1
root at node0:~# ctdb status
Number of nodes:3
pnn:0 192.168.74.11 OK (THIS NODE)
pnn:1 192.168.74.12 OK
pnn:2 192.168.74.13 OK
Generation:1131631460
Size:3
hash:0 lmaster:0
hash:1 lmaster:1
hash:2 lmaster:2
Recovery mode:NORMAL (0)
Recovery master:0
root at node0:~# ctdb ip
Public IPs on node 0
192.168.74.20 0
My test procedure is as below.
1. The virtual IP is holded by onde0(192.168.74.11). Client(Win 8) accesses \\192.168.74.20\<file:///\\192.168.74.20\>...
2016 Jul 03
2
Winbind process stuck at 100% after changing use_mmap to no
...gt; Volker
100% sure I'm using it! :
[root at zearing ~]# ctdb status
Number of nodes:6
pnn:0 172.16.40.13 OK
pnn:1 172.16.40.14 OK (THIS NODE)
pnn:2 172.16.40.15 OK
pnn:3 192.168.21.24 OK
pnn:4 192.168.21.25 OK
pnn:5 192.168.21.27 OK
Generation:1417726848
Size:6
hash:0 lmaster:0
hash:1 lmaster:1
hash:2 lmaster:2
hash:3 lmaster:3
hash:4 lmaster:4
hash:5 lmaster:5
Recovery mode:NORMAL (0)
Recovery master:4
smb.conf:
[global]
max protocol = SMB2
host msdfs = yes
workgroup = IFA_NET
netbios name = LIZARDCLUSTER
private dir = /mfs/ctdb/private
clustering = yes
use mmap = y...
2018 Jun 03
1
CTDB over WAN Link with LMASTER/RECMASTER Disabled
Hi,
I came across the 'CTDB_CAPABILITY_LMASTER=no' and 'CTDB_CAPABILITY_RECMASTER=no' options in my quest to salvage a rather poorly performing CTDB cluster over Ceph(fs). Unfortunately, the docs provide not enough information for a clustering noop like myself. Would there be any benefit to disabling those options for a branch offic...
2014 Jul 11
1
ctdb PARTIALLYONLINE
drbd ctdb ocfs2
Hi
Everything seems OK apart from the IP takeover.
public_addresses
192.168.1.80/24 enp0s3
192.168.1.81/24 enp0s3
ctdb status
Number of nodes:2
pnn:0 192.168.1.10 PARTIALLYONLINE
pnn:1 192.168.1.11 PARTIALLYONLINE (THIS NODE)
Generation:2090727463
Size:2
hash:0 lmaster:0
hash:1 lmaster:1
Recovery mode:NORMAL (0)
Recovery master:1
but we are getting:
2014/07/11 18:17:37.313940 [recoverd:15925]: Failed to find node to
cover ip 192.168.1.81
2014/07/11 18:17:37.314608 [recoverd:15925]: Failed to find node to
cover ip 192.168.1.80
our nodes are on the other interfac...
2018 Jun 28
4
CTDB upgrade to SAMBA 4.8.3
....samba.org/index.php/Upgrading_a_CTDB_cluster. I shutdown
all CTDB nodes and upgraded them. After the upgrade i started all nodes
and ctdb status shows:
Number of nodes:3
pnn:0 192.168.199.52 OK (THIS NODE)
pnn:1 192.168.199.53 OK
pnn:2 192.168.199.49 OK
Generation:1484961991
Size:3
hash:0 lmaster:0
hash:1 lmaster:1
hash:2 lmaster:2
Recovery mode:NORMAL (0)
Recovery master:0
Now i have the problem that "testparm" outputs, for me not readable
informations:
root at ctdb1:~/ctdb# testparm
Load smb config files from /usr/local/samba/etc/smb.conf
rlimit_max: increasing rlimit_max (10...
2020 Oct 15
2
setlmasterrole in config
...#39;re unsure how to
> persistently set these flags, which are VERY useful for performance from
> what we see. We want to ensure that after reboot, particular nodes are
> always set on (or others off).
From the ctdb/doc/ctdb.1.xml man page file:
<refsect2>
<title>setlmasterrole on|off</title>
<para>
This command is used to enable/disable the LMASTER capability for a node at runtime. This capability determines whether or not a node can be used as an LM
</para>
<para>
Nodes will by default have this capability,...
2012 May 11
0
CTDB daemon crashed on bringing down one node in the cluster
...es gave the following status,
[root@<nodename>~]# ctdb status
Number of nodes:4
pnn:0 x.y.z.a DISCONNECTED|BANNED|UNHEALTHY|INACTIVE
pnn:1 x.y.z.b BANNED|UNHEALTHY|INACTIVE (THIS NODE)
pnn:2 x.y.z.c DISCONNECTED|UNHEALTHY|INACTIVE
pnn:3 x.y.z.d OK
Generation:INVALID
Size:3
hash:0 lmaster:0
hash:1 lmaster:1
hash:2 lmaster:3
Recovery mode:RECOVERY (1)
Recovery master:3
In the above (edited) output, pnn: 2 is the one that was brought down.
I also observed that ctdb had crashed with signal 6 in pnn: 0. The stack trace
was not very useful. I am new to ctdb, I would like to know if ther...
2016 Jul 03
4
Winbind process stuck at 100% after changing use_mmap to no
On 03/07/16 13:06, Volker Lendecke wrote:
> On Fri, Jul 01, 2016 at 10:00:21AM +0100, Alex Crow wrote:
>> We've had a strange issue after following the recommendations at
>> https://wiki.samba.org/index.php/Ping_pong, particularly the part
>> about mmap coherence. We are running CTDB/Samba over a MooseFS
>> clustered FS, and we'd not done the ping-pong before.
2016 Aug 31
0
status of Continuous availability in SMB3
...n 4.3.9-Ubuntu
>
> root at node0:~# ctdb version
> CTDB version: 2.5.1
>
> root at node0:~# ctdb status
> Number of nodes:3
> pnn:0 192.168.74.11 OK (THIS NODE)
> pnn:1 192.168.74.12 OK
> pnn:2 192.168.74.13 OK
> Generation:1131631460
> Size:3
> hash:0 lmaster:0
> hash:1 lmaster:1
> hash:2 lmaster:2
> Recovery mode:NORMAL (0)
> Recovery master:0
>
> root at node0:~# ctdb ip
> Public IPs on node 0
> 192.168.74.20 0
>
>
>
> My test procedure is as below.
> 1. The virtual IP is holded by onde0(192.168.74.11). Clien...
2008 Jun 04
0
CTDB problems: 1) Unable to get tcp info for CTDB_CONTROL_TCP_CLIENT, 2) ctdb disable doesn't failover
...'locking.tdb' with dbid 0x42fe72c5
No locked files
But, when I disable the current node
oss02:~ # ctdb disable -n 1
oss02:/ # ctdb status
Number of nodes:3
pnn:0 10.200.20.55 OK
pnn:1 10.200.20.56 DISABLED (THIS NODE)
pnn:2 10.200.20.58 OK
Generation:643008338
Size:3
hash:0 lmaster:0
hash:1 lmaster:1
hash:2 lmaster:2
Recovery mode:NORMAL (0)
Recovery master:1
the files stop copying, the private interface goes down on node 1
and there is no failover. Eventually, in the screen where I'm running
a copy loop, I see:
cp: cannot create regular file `ls.4190.exe': No such...
2018 Jun 28
0
CTDB upgrade to SAMBA 4.8.3
...shutdown
> all CTDB nodes and upgraded them. After the upgrade i started all
> nodes and ctdb status shows:
>
> Number of nodes:3
> pnn:0 192.168.199.52 OK (THIS NODE)
> pnn:1 192.168.199.53 OK
> pnn:2 192.168.199.49 OK
> Generation:1484961991
> Size:3
> hash:0 lmaster:0
> hash:1 lmaster:1
> hash:2 lmaster:2
> Recovery mode:NORMAL (0)
> Recovery master:0
>
> Now i have the problem that "testparm" outputs, for me not readable
> informations:
>
> root at ctdb1:~/ctdb# testparm
> Load smb config files from /usr/local/samba/...
2014 Jul 03
0
ctdb split brain nodes doesn't see each other
Hi,
I?ve setup a simple ctdb cluster. Actually copied the config file from an existing system.
Thats what happens:
Node 1, alone
Number of nodes:2
pnn:0 10.0.0.1 OK (THIS NODE)
pnn:1 10.0.0.2 DISCONNECTED|UNHEALTHY|INACTIVE
Generation:1369816268
Size:1
hash:0 lmaster:0
Recovery mode:NORMAL (0)
Recovery master:0
Node1, after start of ctdb on Node 2
Number of nodes:2
pnn:0 10.0.0.1 OK (THIS NODE)
pnn:1 10.0.0.2 UNHEALTHY
Generation:1369816268
Size:1
hash:0 lmaster:0
Recovery mode:NORMAL (0)
Recovery master:0
Node 1, 1 minute later
Number of nod...
2011 Sep 08
1
ctdb node disable windows xcopy break
...des
CTDB_NOTIFY_SCRIPT=/etc/ctdb/notify.sh
CTDB_DBDIR=/var/lib/ctdb
CTDB_DBDIR_PERSISTENT=/var/lib/ctdb/persistent
CTDB_EVENT_SCRIPT_DIR=/etc/ctdb/events.d
CTDB_SOCKET=/tmp/ctdb.socket
CTDB_TRANSPORT="tcp"
CTDB_START_AS_DISABLED="no"
CTDB_CAPABILITY_RECMASTER=yes
CTDB_CAPABILITY_LMASTER=yes
CTDB_LOGFILE=/var/log/ctdb/log.ctdb
CTDB_DEBUGLEVEL=ERR
CTDB_SUPPRESS_COREFILE=no
CTDB_SYSLOG=no
CTDB_RUN_TIMEOUT_MONITOR=no
CTDB_MAX_PERSISTENT_CHECK_ERRORS=0
root at smb-cluster-1:~# ctdb status
Number of nodes:2
pnn:0 10.10.10.1 OK (THIS NODE)
pnn:1 10.10.10.2 OK
Generation:1071...
2018 Jun 28
1
CTDB upgrade to SAMBA 4.8.3
...pgraded them. After the upgrade i started all
>> nodes and ctdb status shows:
>>
>> Number of nodes:3
>> pnn:0 192.168.199.52 OK (THIS NODE)
>> pnn:1 192.168.199.53 OK
>> pnn:2 192.168.199.49 OK
>> Generation:1484961991
>> Size:3
>> hash:0 lmaster:0
>> hash:1 lmaster:1
>> hash:2 lmaster:2
>> Recovery mode:NORMAL (0)
>> Recovery master:0
>>
>> Now i have the problem that "testparm" outputs, for me not readable
>> informations:
>>
>> root at ctdb1:~/ctdb# testparm
>> Load sm...
2020 Oct 29
1
CTDB Question: external locking tool
...om.com>
> wrote:
>
> > We use a Golang-based lock tool that we wrote for CTDB. That tool interacts
> > with our 3.4 etcd cluster, and follows the requirements specified in the
> > project.
> >
> > Question, does the external command line tool get called when LMASTER and
> > RECMASTER are false? Given a scenario where we have a set of processes that
> > have it set to false, then others that have it set to true, does the
> > locking tool get called when they're set to false?
>
> Indeed it does. There are 2 current things conspiri...
2016 Nov 09
0
samba CTDB inability to create smb.conf cache
...I'm setting up a simple cluster, only ldap backend instead
of tdb2.
One (of the two) server fails this way:
50.samba: ERROR: smb.conf cache create failed
$ ctdb status
Number of nodes:2
pnn:0 10.5.6.32 OK
pnn:1 10.5.6.49 UNHEALTHY (THIS NODE)
Generation:323266562
Size:2
hash:0 lmaster:0
hash:1 lmaster:1
Recovery mode:NORMAL (0)
Recovery master:0
If I copy the file manually while ctdb is running I see:
50.samba: WARNING: smb.conf cache update failed - using old
cache file
Node became HEALTHY. Ask recovery master 0 to perform ip
reallocation
and:
$ ctdb status
Number of node...
2016 Nov 09
0
CTDB and samba private dir (+ldap)
...on the FS
> cluster" - one question I have: is this correct? necessary?
>
> I have partial success, I get:
>
> $ ctdb status
> Number of nodes:2
> pnn:0 10.5.6.32 OK
> pnn:1 10.5.6.49 UNHEALTHY (THIS NODE)
> Generation:323266562
> Size:2
> hash:0 lmaster:0
> hash:1 lmaster:1
> Recovery mode:NORMAL (0)
> Recovery master:0
>
> I use:
> passdb backend = ldapsam:"ldapi:///var/run/ldapi"
> idmap backend = ldap:"ldapi:///var/run/ldapi"
>
> and on that one "unhealthy" node I see:
>
> 50.sa...