Lustre discuss - Jun 2011 - Where should SHARED_DIRECTORY of acc-sm cfg variable set to?

To run some test suites of acc-sm, the SHARED_DIRECTORY variable
needs to be set. Where should it be set to?

Bugzilla 17839 Comment #65 said: "the variable must contain the path of
a shared filesystem".

Does it need to be shared by what nodes? The clients? The clients +
OST''es?
Can it be $MOUNT? Or should it be a non-lustre filesystem that is mounted
by NFS? Please advise. Thanks!

regards,
Jay

On 2011-06-13, at 7:41 PM, Jay Lan wrote:
> To run some test suites of acc-sm, the SHARED_DIRECTORY variable
> needs to be set. Where should it be set to?
> 
> Bugzilla 17839 Comment #65 said: "the variable must contain the path
of
> a shared filesystem".
> 
> Does it need to be shared by what nodes? The clients? The clients +
OST''es?
> Can it be $MOUNT? Or should it be a non-lustre filesystem that is mounted
> by NFS? Please advise. Thanks!
This is used by a small number of tests to share state between the client
running the tests, or in some cases between the servers (e.g. lfsck.sh).
It needs to be a non-lustre filesystem that is available on all the nodes. 

Cheers, Andreas
--
Andreas Dilger 
Principal Engineer
Whamcloud, Inc.

Perhaps it would be beneficial to add Andreas''s comment to the source
to avoid any future confusion?

{code}
    # This is used by a small number of tests to share state between the client
    # running the tests, or in some cases between the servers (e.g. lfsck.sh).
    # It needs to be a non-lustre filesystem that is available on all the nod
    export SHARED_DIRECTORY=${SHARED_DIRECTORY:-"/tmp"}
{/code}

________________________________________
From: lustre-discuss-bounces at lists.lustre.org [lustre-discuss-bounces at
lists.lustre.org] On Behalf Of Andreas Dilger [adilger at whamcloud.com]
Sent: Monday, June 13, 2011 9:24 PM
To: Jay Lan
Cc: lustre-discuss at lists.lustre.org
Subject: Re: [Lustre-discuss] Where should SHARED_DIRECTORY of acc-sm cfg      
variable set to?

On 2011-06-13, at 7:41 PM, Jay Lan wrote:
> To run some test suites of acc-sm, the SHARED_DIRECTORY variable
> needs to be set. Where should it be set to?
>
> Bugzilla 17839 Comment #65 said: "the variable must contain the path
of
> a shared filesystem".
>
> Does it need to be shared by what nodes? The clients? The clients +
OST''es?
> Can it be $MOUNT? Or should it be a non-lustre filesystem that is mounted
> by NFS? Please advise. Thanks!
This is used by a small number of tests to share state between the client
running the tests, or in some cases between the servers (e.g. lfsck.sh).
It needs to be a non-lustre filesystem that is available on all the nodes.

Cheers, Andreas
--
Andreas Dilger
Principal Engineer
Whamcloud, Inc.



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Lustre-discuss at lists.lustre.org
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On 2011-06-14, at 9:57 AM, Surya, Prakash B. wrote:
> Perhaps it would be beneficial to add Andreas''s comment to the
source to avoid any future confusion?
> 
> {code}
>    # This is used by a small number of tests to share state between the
client
>    # running the tests, or in some cases between the servers (e.g.
lfsck.sh).
>    # It needs to be a non-lustre filesystem that is available on all the
nod
>    export SHARED_DIRECTORY=${SHARED_DIRECTORY:-"/tmp"}
> {/code}
Sure, a patch would be quickly approved.
> ________________________________________
> From: lustre-discuss-bounces at lists.lustre.org [lustre-discuss-bounces at
lists.lustre.org] On Behalf Of Andreas Dilger [adilger at whamcloud.com]
> Sent: Monday, June 13, 2011 9:24 PM
> To: Jay Lan
> Cc: lustre-discuss at lists.lustre.org
> Subject: Re: [Lustre-discuss] Where should SHARED_DIRECTORY of acc-sm cfg  
variable set to?
> 
> On 2011-06-13, at 7:41 PM, Jay Lan wrote:
>> To run some test suites of acc-sm, the SHARED_DIRECTORY variable
>> needs to be set. Where should it be set to?
>> 
>> Bugzilla 17839 Comment #65 said: "the variable must contain the
path of
>> a shared filesystem".
>> 
>> Does it need to be shared by what nodes? The clients? The clients +
OST''es?
>> Can it be $MOUNT? Or should it be a non-lustre filesystem that is
mounted
>> by NFS? Please advise. Thanks!
> 
> This is used by a small number of tests to share state between the client
> running the tests, or in some cases between the servers (e.g. lfsck.sh).
> It needs to be a non-lustre filesystem that is available on all the nodes.
> 
> Cheers, Andreas
> --
> Andreas Dilger
> Principal Engineer
> Whamcloud, Inc.
> 
> 
> 
> _______________________________________________
> Lustre-discuss mailing list
> Lustre-discuss at lists.lustre.org
> http://lists.lustre.org/mailman/listinfo/lustre-discuss

Cheers, Andreas
--
Andreas Dilger 
Principal Engineer
Whamcloud, Inc.