[Pacemaker] hangs pending
Andrew Beekhof
andrew at beekhof.net
Tue Jan 14 03:41:37 UTC 2014
Ok, here's what happens:
1. node2 is lost
2. fencing of node2 starts
3. node2 reboots (and cluster starts)
4. node2 returns to the membership
5. node2 is marked as a cluster member
6. DC tries to bring it into the cluster, but needs to cancel the active transition first.
Which is a problem since the node2 fencing operation is part of that
7. node2 is in a transition (pending) state until fencing passes or fails
8a. fencing fails: transition completes and the node joins the cluster
Thats in theory, except we automatically try again. Which isn't appropriate.
This should be relatively easy to fix.
8b. fencing passes: the node is incorrectly marked as offline
This I have no idea how to fix yet.
On another note, it doesn't look like this agent works at all.
The node has been back online for a long time and the agent is still timing out after 10 minutes.
So "Once the script makes sure that the victim will rebooted and again available via ssh - it exit with 0." does not seem true.
On 14 Jan 2014, at 1:19 pm, Andrew Beekhof <andrew at beekhof.net> wrote:
> Apart from anything else, your timeout needs to be bigger:
>
> Jan 13 12:21:36 [17223] dev-cluster2-node1.unix.tensor.ru stonith-ng: ( commands.c:1321 ) error: log_operation: Operation 'reboot' [11331] (call 2 from crmd.17227) for host 'dev-cluster2-node2.unix.tensor.ru' with device 'st1' returned: -62 (Timer expired)
>
>
> On 14 Jan 2014, at 7:18 am, Andrew Beekhof <andrew at beekhof.net> wrote:
>
>>
>> On 13 Jan 2014, at 8:31 pm, Andrey Groshev <greenx at yandex.ru> wrote:
>>
>>>
>>>
>>> 13.01.2014, 02:51, "Andrew Beekhof" <andrew at beekhof.net>:
>>>> On 10 Jan 2014, at 9:55 pm, Andrey Groshev <greenx at yandex.ru> wrote:
>>>>
>>>>> 10.01.2014, 14:31, "Andrey Groshev" <greenx at yandex.ru>:
>>>>>> 10.01.2014, 14:01, "Andrew Beekhof" <andrew at beekhof.net>:
>>>>>>> On 10 Jan 2014, at 5:03 pm, Andrey Groshev <greenx at yandex.ru> wrote:
>>>>>>>> 10.01.2014, 05:29, "Andrew Beekhof" <andrew at beekhof.net>:
>>>>>>>>> On 9 Jan 2014, at 11:11 pm, Andrey Groshev <greenx at yandex.ru> wrote:
>>>>>>>>>> 08.01.2014, 06:22, "Andrew Beekhof" <andrew at beekhof.net>:
>>>>>>>>>>> On 29 Nov 2013, at 7:17 pm, Andrey Groshev <greenx at yandex.ru> wrote:
>>>>>>>>>>>> Hi, ALL.
>>>>>>>>>>>>
>>>>>>>>>>>> I'm still trying to cope with the fact that after the fence - node hangs in "pending".
>>>>>>>>>>> Please define "pending". Where did you see this?
>>>>>>>>>> In crm_mon:
>>>>>>>>>> ......
>>>>>>>>>> Node dev-cluster2-node2 (172793105): pending
>>>>>>>>>> ......
>>>>>>>>>>
>>>>>>>>>> The experiment was like this:
>>>>>>>>>> Four nodes in cluster.
>>>>>>>>>> On one of them kill corosync or pacemakerd (signal 4 or 6 oк 11).
>>>>>>>>>> Thereafter, the remaining start it constantly reboot, under various pretexts, "softly whistling", "fly low", "not a cluster member!" ...
>>>>>>>>>> Then in the log fell out "Too many failures ...."
>>>>>>>>>> All this time in the status in crm_mon is "pending".
>>>>>>>>>> Depending on the wind direction changed to "UNCLEAN"
>>>>>>>>>> Much time has passed and I can not accurately describe the behavior...
>>>>>>>>>>
>>>>>>>>>> Now I am in the following state:
>>>>>>>>>> I tried locate the problem. Came here with this.
>>>>>>>>>> I set big value in property stonith-timeout="600s".
>>>>>>>>>> And got the following behavior:
>>>>>>>>>> 1. pkill -4 corosync
>>>>>>>>>> 2. from node with DC call my fence agent "sshbykey"
>>>>>>>>>> 3. It sends reboot victim and waits until she comes to life again.
>>>>>>>>> Hmmm.... what version of pacemaker?
>>>>>>>>> This sounds like a timing issue that we fixed a while back
>>>>>>>> Was a version 1.1.11 from December 3.
>>>>>>>> Now try full update and retest.
>>>>>>> That should be recent enough. Can you create a crm_report the next time you reproduce?
>>>>>> Of course yes. Little delay.... :)
>>>>>>
>>>>>> ......
>>>>>> cc1: warnings being treated as errors
>>>>>> upstart.c: In function ‘upstart_job_property’:
>>>>>> upstart.c:264: error: implicit declaration of function ‘g_variant_lookup_value’
>>>>>> upstart.c:264: error: nested extern declaration of ‘g_variant_lookup_value’
>>>>>> upstart.c:264: error: assignment makes pointer from integer without a cast
>>>>>> gmake[2]: *** [libcrmservice_la-upstart.lo] Error 1
>>>>>> gmake[2]: Leaving directory `/root/ha/pacemaker/lib/services'
>>>>>> make[1]: *** [all-recursive] Error 1
>>>>>> make[1]: Leaving directory `/root/ha/pacemaker/lib'
>>>>>> make: *** [core] Error 1
>>>>>>
>>>>>> I'm trying to solve this a problem.
>>>>> Do not get solved quickly...
>>>>>
>>>>> https://developer.gnome.org/glib/2.28/glib-GVariant.html#g-variant-lookup-value
>>>>> g_variant_lookup_value () Since 2.28
>>>>>
>>>>> # yum list installed glib2
>>>>> Loaded plugins: fastestmirror, rhnplugin, security
>>>>> This system is receiving updates from RHN Classic or Red Hat Satellite.
>>>>> Loading mirror speeds from cached hostfile
>>>>> Installed Packages
>>>>> glib2.x86_64 2.26.1-3.el6 installed
>>>>>
>>>>> # cat /etc/issue
>>>>> CentOS release 6.5 (Final)
>>>>> Kernel \r on an \m
>>>>
>>>> Can you try this patch?
>>>> Upstart jobs wont work, but the code will compile
>>>>
>>>> diff --git a/lib/services/upstart.c b/lib/services/upstart.c
>>>> index 831e7cf..195c3a4 100644
>>>> --- a/lib/services/upstart.c
>>>> +++ b/lib/services/upstart.c
>>>> @@ -231,12 +231,21 @@ upstart_job_exists(const char *name)
>>>> static char *
>>>> upstart_job_property(const char *obj, const gchar * iface, const char *name)
>>>> {
>>>> + char *output = NULL;
>>>> +
>>>> +#if !GLIB_CHECK_VERSION(2,28,0)
>>>> + static bool err = TRUE;
>>>> +
>>>> + if(err) {
>>>> + crm_err("This version of glib is too old to support upstart jobs");
>>>> + err = FALSE;
>>>> + }
>>>> +#else
>>>> GError *error = NULL;
>>>> GDBusProxy *proxy;
>>>> GVariant *asv = NULL;
>>>> GVariant *value = NULL;
>>>> GVariant *_ret = NULL;
>>>> - char *output = NULL;
>>>>
>>>> crm_info("Calling GetAll on %s", obj);
>>>> proxy = get_proxy(obj, BUS_PROPERTY_IFACE);
>>>> @@ -272,6 +281,7 @@ upstart_job_property(const char *obj, const gchar * iface, const char *name)
>>>>
>>>> g_object_unref(proxy);
>>>> g_variant_unref(_ret);
>>>> +#endif
>>>> return output;
>>>> }
>>>>
>>>
>>> Ok :) I patch source.
>>> Type "make rc" - the same error.
>>
>> Because its not building your local changes
>>
>>> Make new copy via "fetch" - the same error.
>>> It seems that if not exist ClusterLabs-pacemaker-Pacemaker-1.1.11-rc3.tar.gz, then download it.
>>> Otherwise use exist archive.
>>> Cutted log .......
>>>
>>> # make rc
>>> make TAG=Pacemaker-1.1.11-rc3 rpm
>>> make[1]: Entering directory `/root/ha/pacemaker'
>>> rm -f pacemaker-dirty.tar.* pacemaker-tip.tar.* pacemaker-HEAD.tar.*
>>> if [ ! -f ClusterLabs-pacemaker-Pacemaker-1.1.11-rc3.tar.gz ]; then \
>>> rm -f pacemaker.tar.*; \
>>> if [ Pacemaker-1.1.11-rc3 = dirty ]; then \
>>> git commit -m "DO-NOT-PUSH" -a; \
>>> git archive --prefix=ClusterLabs-pacemaker-Pacemaker-1.1.11-rc3/ HEAD | gzip > ClusterLabs-pacemaker-Pacemaker-1.1.11-rc3.tar.gz; \
>>> git reset --mixed HEAD^; \
>>> else \
>>> git archive --prefix=ClusterLabs-pacemaker-Pacemaker-1.1.11-rc3/ Pacemaker-1.1.11-rc3 | gzip > ClusterLabs-pacemaker-Pacemaker-1.1.11-rc3.tar.gz; \
>>> fi; \
>>> echo `date`: Rebuilt ClusterLabs-pacemaker-Pacemaker-1.1.11-rc3.tar.gz; \
>>> else \
>>> echo `date`: Using existing tarball: ClusterLabs-pacemaker-Pacemaker-1.1.11-rc3.tar.gz; \
>>> fi
>>> Mon Jan 13 13:23:21 MSK 2014: Using existing tarball: ClusterLabs-pacemaker-Pacemaker-1.1.11-rc3.tar.gz
>>> .......
>>>
>>> Well, "make rpm" - build rpms and I create cluster.
>>> I spent the same tests and confirmed the behavior.
>>> crm_reoprt log here - http://send2me.ru/crmrep.tar.bz2
>>
>> Thanks!
>
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