[Orca-users] Orcallator - Segmentation Fault

[Cockcroft, Adrian]

It should still be possible to avoid the crash by checking for a null at
the right point.

Is it crashing in kstat read of the iostats, or the devinfo name mapping
at startup?

Adrian

-----Original Message-----
From: Dmitry Berezin [mailto:dberezin at surfside.rutgers.edu] 
Sent: Thursday, September 07, 2006 8:43 AM
To: Cockcroft, Adrian; 'Biju Joseph'; orca-users at orcaware.com
Subject: RE: [Orca-users] Orcallator - Segmentation Fault

Adrian,

I believe that the actual problem is not with the array sizes, but has
to do
with the "stale" disk devices. SE "segfaults" when it tries to access a
device that is not currently present on the system. That is why the
problem
is usually seen on the clustered systems with shared storage or systems
with
BCV devices that frequently change their state to offline. A number of
people had previously reported that rebuilding device tree fixed the
problem.

I have not had time to look at the code, so I do not know if this could
be
solved by changing scripts or SE itself has to be patched.

  -Dmitry.


> -----Original Message-----
> From: orca-users-bounces+dberezin=acs.rutgers.edu at orcaware.com
> [mailto:orca-users-bounces+dberezin=acs.rutgers.edu at orcaware.com] On
> Behalf Of Cockcroft, Adrian
> Sent: Thursday, September 07, 2006 11:13 AM
> To: Biju Joseph; orca-users at orcaware.com
> Subject: Re: [Orca-users] Orcallator - Segmentation Fault
> 
> Years ago I fixed the code that looks at disks to resize the array
> dynamically, I guess that this code got overwritten at some point, but
its
> a simple fix, just doesn't look much like C code...
> 
> You can use the "renew" keyword to make a new array that is bigger and
> contains the same items, so figure out where its indexing into the
disk
> array, check the index and renew the array to be size+10 or something.
> There's example code in the generic SE disk class, which for some
reason
> orcallator doesn't seem to use?
> 
> I'm not currently working on a Solaris box, so it will take me a while
to
> get a setup I could test this fix on, probably a few weeks when I get
back
> from a business trip.
> 
> Adrian
> 
> -----Original Message-----
> From: orca-users-bounces+acockcroft=ebay.com at orcaware.com on behalf of
> Biju Joseph
> Sent: Thu 9/7/2006 7:28 AM
> To: orca-users at orcaware.com
> Subject: [Orca-users] Orcallator - Segmentation Fault
> 
> Hello All,
> 
> I am trying to start orcallator on two nodes of VCS cluster ( 4.1 )
with
> VxVM 4.1 . Database is on EMC disks. Orcallator is giving segmentation
> fault.
> 
> RICHPse version is 3.4 (03:59 PM 01/05/05).  I tried using
orcallator.se
> 1.36 and 1.37. Both giving same problem.
> 
> The same combination is working on non clustered systems. All systems
are
> Solaris 10
> 
> Can any of you help.
> 
> Appreciate your help.
> 
> Regards
> Biju K Joseph
> +91-9866116298
> 
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