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Re: [Linux-cluster] Problem in clvmd/dlm_recoverd



Excerpts from Nuno Fernandes's message of Fri Nov 14 03:00:13 -0700 2008:
> Hi,
> 
> we have an cluster with 7 machines with a SAN. We are using them to provide 
> virtual machines, so we are using clvmd.
> 
> At some point we are unable to access any of the pv/lv/vg tools. They are all 
> stuck. From stracing them i've come to the conclusion that they are waiting 
> for clvmd.
> 
> Has anyone been in this situation?

This happens to me as well every once and a while. Haven't figure it out yet either.

Thanks,
Curtis.

> 
> Thanks for any help,
> Nuno Fernandes
> 
> in host xen1:                                                                  
>                                              
> Linux blade01.dc.xpto.com 2.6.18-92.1.17.el5xen #1 SMP Tue Nov 4 14:13:09 EST 
> 2008 x86_64 x86_64 x86_64 GNU/Linux            
> lvm2-cluster-2.02.32-4.el5                                                     
>                                              
> cman-2.0.84-2.el5_2.1                                                          
>                                              
>   PID TTY      STAT   TIME COMMAND                                             
>                                              
> 20874 ?        D<     0:00  \_ [dlm_recoverd]                                  
>                                              
> 20854 pts/1    S+     0:00      \_ /bin/sh /sbin/service clvmd start           
>                                              
> 20861 pts/1    S+     0:00          \_ /bin/bash /etc/init.d/clvmd start       
>                                              
> 20931 pts/1    S+     0:00              \_ /usr/sbin/vgscan -d                 
>                                              
> 20869 ?        Ssl    0:00 clvmd -T40                                          
>                                              
> ps ax -o pid,cmd,wchan                                                         
>                                              
> 20874 [dlm_recoverd]              -                                            
>                                              
> ------------------------------                                                 
>                                              
> Connection to xen1 closed.                                                     
>                                              
> in host xen2:                                                                  
>                                              
> Linux blade02.dc.xpto.com 2.6.18-8.1.14.el5xen #1 SMP Thu Oct 4 11:38:56 WEST 
> 2007 x86_64 x86_64 x86_64 GNU/Linux            
> lvm2-cluster-2.02.16-3.el5                                                     
>                                              
> cman-2.0.64-1.0.1.el5                                                          
>                                              
>   PID TTY      STAT   TIME COMMAND                                             
>                                              
> 22662 ?        D<     0:00  \_ [dlm_recoverd]                                  
>                                              
> 22613 ?        Ssl    0:02 clvmd -T40                                          
>                                              
> ps ax -o pid,cmd,wchan                                                         
>                                              
> 22662 [dlm_recoverd]              -                                            
>                                              
> ------------------------------                                                 
>                                              
> Connection to xen2 closed.                                                     
>                                              
> in host xen3:                                                                  
>                                              
> Linux blade03.dc.xpto.com 2.6.18-8.1.14.el5xen #1 SMP Thu Oct 4 11:38:56 WEST 
> 2007 x86_64 x86_64 x86_64 GNU/Linux            
> lvm2-cluster-2.02.16-3.el5                                                     
>                                              
> cman-2.0.64-1.0.1.el5                                                          
>                                              
>   PID TTY      STAT   TIME COMMAND                                             
>                                              
> 22236 ?        D<     0:00  \_ [dlm_recoverd]                                  
>                                              
> 22231 ?        Ssl    0:02 clvmd -T40                                          
>                                              
> ps ax -o pid,cmd,wchan                                                         
>                                              
> Connection to xen3 closed.                                                     
>                                              
> 22236 [dlm_recoverd]              dlm_wait_function                            
>                                              
> ------------------------------                                                 
>                                              
> in host xen4:                                                                  
>                                              
> Linux blade04.dc.xpto.com 2.6.18-8.1.14.el5xen #1 SMP Thu Oct 4 11:38:56 WEST 
> 2007 x86_64 x86_64 x86_64 GNU/Linux            
> lvm2-cluster-2.02.16-3.el5                                                     
>                                              
> cman-2.0.64-1.0.1.el5                                                          
>                                              
>   PID TTY      STAT   TIME COMMAND                                             
>                                              
> 25097 ?        D<     0:00  \_ [dlm_recoverd]                                  
>                                              
> 25092 ?        Ssl    0:02 clvmd -T40                                          
>                                              
> ps ax -o pid,cmd,wchan                                                         
>                                              
> 25097 [dlm_recoverd]              dlm_wait_function                            
>                                              
> ------------------------------                                                 
>                                              
> Connection to xen4 closed.                                                     
>                                              
> in host xen5:
> Linux blade05.dc.xpto.com 2.6.18-92.1.17.el5xen #1 SMP Tue Nov 4 14:13:09 EST 
> 2008 x86_64 x86_64 x86_64 GNU/Linux
> lvm2-cluster-2.02.32-4.el5
> cman-2.0.84-2.el5_2.1
>   PID TTY      STAT   TIME COMMAND
> 22333 ?        D<     0:00  \_ [dlm_recoverd]
> 22328 ?        Ssl    0:02 clvmd -T40
> ps ax -o pid,cmd,wchan
> 22333 [dlm_recoverd]              -
> ------------------------------
> Connection to xen5 closed.
> in host xen6:
> Linux blade06.dc.xpto.com 2.6.18-92.1.17.el5xen #1 SMP Tue Nov 4 14:13:09 EST 
> 2008 x86_64 x86_64 x86_64 GNU/Linux
> lvm2-cluster-2.02.32-4.el5
> cman-2.0.84-2.el5_2.1
>   PID TTY      STAT   TIME COMMAND
> ps ax -o pid,cmd,wchan
> ------------------------------
> Connection to xen6 closed.
> in host xen7:
> Linux blade07.dc.xpto.com 2.6.18-92.1.13.el5xen #1 SMP Wed Sep 24 20:01:15 EDT 
> 2008 x86_64 x86_64 x86_64 GNU/Linux
> lvm2-cluster-2.02.32-4.el5
> cman-2.0.84-2.el5
> cman-2.0.84-2.el5_2.1
>   PID TTY      STAT   TIME COMMAND
> 19793 ?        D<     0:00  \_ [dlm_recoverd]
> 19788 ?        Ssl    0:01 clvmd -T40
> ps ax -o pid,cmd,wchan
> 19793 [dlm_recoverd]              -

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