[Linux-ha-dev] Announcing crmsh release 2.1

2014-06-30 Thread Kristoffer Grönlund
Today we are proud to announce the release of `crmsh` version 2.1!
This version primarily fixes all known issues found since the release
of `crmsh` 2.0 in April, but also has some major new features.

A massive thank you to everyone who has helped out with bug fixes,
comments and contributions for this release!

For a complete list of changes since the previous version, please
refer to the changelog:

* https://github.com/crmsh/crmsh/blob/2.1.0/ChangeLog

Packages for several popular Linux distributions can be downloaded
from the Stable repository at the OBS:

*
  http://download.opensuse.org/repositories/network:/ha-clustering:/Stable/

(Will be updated soon)

Archives of the tagged release:

* https://github.com/crmsh/crmsh/archive/2.1.0.tar.gz
* https://github.com/crmsh/crmsh/archive/2.1.0.zip

Here are some of the highlights of this release:

== Rule expressions in attribute lists

One of the biggest features in this release is full support for rule
expressions wherever the XML syntax allows them.

Here is an example of using rule expressions in an attribute list in
order to set the virtual IP of an IPAddr2 resource to a different
value on a specific node.


primitive vip-on-node1 IPAddr2 \
rule 10: #uname eq node1 ip=10.0.0.5 \
rule 1: ip=10.0.0.6


== Tags in the CIB

A new feature added to Pacemaker recently is tags. This is a way
to refer to multiple resources at once without creating any
colocation or ordering relationship between them. For example, you
could add all resources related to the database to a db tag, and
then stop or start them all with a single command.


tag db drbd:Master fs sql-db


It is also possible to refer to tags in constraints.

== Wildcards in show/edit

The configure show and edit commands can now use glob-style
wildcards to refer to multiple resources:


configure edit db-*


== Nvpair references

Sometimes, different resources name the same parameters with different
names. For example, an IPAddr2 may have an ip parameter that should be
the same as a web servers server_ip parameter. By using nvpair
references, it is possible to configure the ip in a single location.

Note that this is a new feature in Pacemaker 1.1.12 and up.


primitive vip IPAddr2 params $my-ip:ip=192.168.0.1
primitive www apache params @my-ip:server_ip


== New ACL syntax

The support for Access Control Lists has been revised in Pacemaker
1.1.12, and this release of crmsh supports the new syntax. Two new 
commands have been added: `acl_target` and `acl_group`. For more
details, see the documentation.

Thank you,

Kristoffer

-- 
// Kristoffer Grönlund
// kgronl...@suse.com
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[Linux-HA] Announcing crmsh release 2.1

2014-06-30 Thread Kristoffer Grönlund
Today we are proud to announce the release of `crmsh` version 2.1!
This version primarily fixes all known issues found since the release
of `crmsh` 2.0 in April, but also has some major new features.

A massive thank you to everyone who has helped out with bug fixes,
comments and contributions for this release!

For a complete list of changes since the previous version, please
refer to the changelog:

* https://github.com/crmsh/crmsh/blob/2.1.0/ChangeLog

Packages for several popular Linux distributions can be downloaded
from the Stable repository at the OBS:

*
  http://download.opensuse.org/repositories/network:/ha-clustering:/Stable/

(Will be updated soon)

Archives of the tagged release:

* https://github.com/crmsh/crmsh/archive/2.1.0.tar.gz
* https://github.com/crmsh/crmsh/archive/2.1.0.zip

Here are some of the highlights of this release:

== Rule expressions in attribute lists

One of the biggest features in this release is full support for rule
expressions wherever the XML syntax allows them.

Here is an example of using rule expressions in an attribute list in
order to set the virtual IP of an IPAddr2 resource to a different
value on a specific node.


primitive vip-on-node1 IPAddr2 \
rule 10: #uname eq node1 ip=10.0.0.5 \
rule 1: ip=10.0.0.6


== Tags in the CIB

A new feature added to Pacemaker recently is tags. This is a way
to refer to multiple resources at once without creating any
colocation or ordering relationship between them. For example, you
could add all resources related to the database to a db tag, and
then stop or start them all with a single command.


tag db drbd:Master fs sql-db


It is also possible to refer to tags in constraints.

== Wildcards in show/edit

The configure show and edit commands can now use glob-style
wildcards to refer to multiple resources:


configure edit db-*


== Nvpair references

Sometimes, different resources name the same parameters with different
names. For example, an IPAddr2 may have an ip parameter that should be
the same as a web servers server_ip parameter. By using nvpair
references, it is possible to configure the ip in a single location.

Note that this is a new feature in Pacemaker 1.1.12 and up.


primitive vip IPAddr2 params $my-ip:ip=192.168.0.1
primitive www apache params @my-ip:server_ip


== New ACL syntax

The support for Access Control Lists has been revised in Pacemaker
1.1.12, and this release of crmsh supports the new syntax. Two new 
commands have been added: `acl_target` and `acl_group`. For more
details, see the documentation.

Thank you,

Kristoffer

-- 
// Kristoffer Grönlund
// kgronl...@suse.com
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Re: [Linux-HA] heartbeat 3.0.3 crashes if there are networking/multicast issues (ERROR: lowseq cannnot be greater than ackseq)

2014-06-30 Thread Pasi Kärkkäinen
On Thu, Jun 26, 2014 at 01:30:01PM +0200, Lars Ellenberg wrote:
 On Tue, Jun 24, 2014 at 11:20:48PM +0300, Pasi Kärkkäinen wrote:
  Hello!
  
  I've been seeing heartbeat cluster problems in Linux-based Vyatta and more 
  recent VyOS networking/router appliances.
  These are currently based on Debian Squeeze, and thus are using:
  
  Package: heartbeat
  Version: 1:3.0.3-2
 
 Please use 3.0.5:
 http://hg.linux-ha.org/heartbeat-STABLE_3_0/archive/37f57a36a2dd.tar.bz2
 

Do you think v3.0.5 fixes the issue of heartbeat process crashing? 

This patch perhaps? http://hg.linux-ha.org/heartbeat-STABLE_3_0/rev/3e51db646a21


Thanks,

-- Pasi

  VyOS bug report: http://bugzilla.vyos.net/show_bug.cgi?id=244
  
  The problem is that when there are (unexpected) networking problems causing 
  multicast issues,
  which cause problems in the inter-cluster communications, the heartbeat 
  processes will die on the cluster nodes,
  which is bad, right? I assume heartbeat should never die, especially not 
  because of temporary networking issues..
  
  I've also seen heartbeat dying because of temporary network maintenance 
  breaks..
  
  Basicly first I'm seeing this kind of messages:
  
  Jun 23 17:55:02 vyos03 heartbeat: [4119]: WARN: node vyos01: is dead
  Jun 23 17:59:23 vyos03 heartbeat: [4119]: CRIT: Cluster node vyos01 
  returning after partition.
  Jun 23 17:59:23 vyos03 heartbeat: [4119]: WARN: Deadtime value may be too 
  small.
  Jun 23 17:59:23 vyos03 heartbeat: [4119]: WARN: Late heartbeat: Node 
  vyos01: interval 273580 ms
  Jun 23 17:59:23 vyos03 harc[4961]: info: Running /etc/ha.d//rc.d/status 
  status
  Jun 23 17:59:25 vyos03 ResourceManager[4991]: info: Releasing resource 
  group: vyos01 IPaddr2-vyatta::10.0.0.10/24/eth1
  Jun 23 17:59:25 vyos03 ResourceManager[4991]: info: Running 
  /etc/ha.d/resource.d/IPaddr2-vyatta 10.0.0.10/24/eth1 stop
  Jun 23 17:59:26 vyos03 heartbeat: [4119]: WARN: 1 lost packet(s) for 
  [vyos01] [421:423]
  Jun 23 17:59:39 vyos03 heartbeat: [4119]: WARN: Logging daemon is disabled 
  --enabling logging daemon is recommended
  Jun 23 17:59:40 vyos03 harc[5102]: info: Running /etc/ha.d//rc.d/status 
  status
  
  Which seem normal in the case of networking problem.. But then later:
  
  Jun 23 19:31:22 vyos03 heartbeat: [10921]: ERROR: Message hist queue is 
  filling up (494 messages in queue)
  Jun 23 19:31:22 vyos03 heartbeat: [10921]: ERROR: Message hist queue is 
  filling up (495 messages in queue)
  Jun 23 19:31:23 vyos03 heartbeat: [10921]: ERROR: Message hist queue is 
  filling up (496 messages in queue)
  Jun 23 19:31:24 vyos03 heartbeat: [10921]: ERROR: Message hist queue is 
  filling up (497 messages in queue)
  Jun 23 19:31:24 vyos03 heartbeat: [10921]: ERROR: Message hist queue is 
  filling up (498 messages in queue)
  Jun 23 19:31:25 vyos03 heartbeat: [10921]: ERROR: Message hist queue is 
  filling up (499 messages in queue)
  Jun 23 19:31:26 vyos03 heartbeat: [10921]: ERROR: Message hist queue is 
  filling up (500 messages in queue)
  Jun 23 19:31:42 vyos03 heartbeat: last message repeated 25 times
  
  
  The hist queue size keeps increasing, and when it gets to 500 messages 
  bad things start happening..
  
  
  Jun 23 19:31:43 vyos03 heartbeat: [10921]: ERROR: Message hist queue is 
  filling up (500 messages in queue)
  Jun 23 19:31:49 vyos03 heartbeat: last message repeated 9 times
  Jun 23 19:31:49 vyos03 heartbeat: [10921]: ERROR: lowseq cannnot be greater 
  than ackseq
  Jun 23 19:31:50 vyos03 heartbeat: [10923]: CRIT: Emergency Shutdown: Master 
  Control process died.
  Jun 23 19:31:50 vyos03 heartbeat: [10923]: CRIT: Killing pid 10921 with 
  SIGTERM
  Jun 23 19:31:50 vyos03 heartbeat: [10923]: CRIT: Killing pid 10924 with 
  SIGTERM
  Jun 23 19:31:50 vyos03 heartbeat: [10923]: CRIT: Killing pid 10925 with 
  SIGTERM
  Jun 23 19:31:50 vyos03 heartbeat: [10923]: CRIT: Emergency Shutdown(MCP 
  dead): Killing ourselves.
  
  At this point clustering has failed, because the heartbeat 
  services/processes aren't running anymore..
  
  Has anyone else seen this? 
 
 It has been fixed years ago ...
 
  It seems the bug gets triggered at 500 messages in the hist queue,
  and then I always see the ERROR: lowseq cannnot be greater than ackseq 
  and then heartbeat dies..
 
 -- 
 : Lars Ellenberg
 : LINBIT | Your Way to High Availability
 : DRBD/HA support and consulting http://www.linbit.com
 
 DRBD® and LINBIT® are registered trademarks of LINBIT, Austria.
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