[Pvfs2-users] Modifying stripe size does not show

[Nirmal Thacker]

Phil:

I did add the Distribution context to my pvfs2-fs.conf , and restarted
the server nodes, and received an "Option cant be defined in that
context" error.
The error points to the Filesystem context, maybe indicating that I
cannot declare the distribution sub-context here (?)

I have attached the error and a copy of my pvfs2-fs.conf

The error comes up when I create a storage space.

[I have 4 storage servers and 1 MDS. I tried by reconfiguring storage
and restarting the servers and the error persists. It also says that the
host names must be consistent [see log] . Thats strange since otherwise,
the servers start fine, without the Distribution context defined]

Nirmal

Phil Carns wrote:
> Hi Nirmal,
>
> I think that you can use the same mechanisms to set distribution
> parameters in 1.5.1 as in our newer releases.
>
> There is some information here about how to set the strip size at run
> time for a particular directory (no need to recompile):
>
> http://www.pvfs.org/fisheye/browse/PVFS/doc/pvfs2-tuning.tex?r=1.2#l208
>
> You can also set a default for the whole file system in your server
> configuration file by adding a section that looks like this into your
> <Filesystem> section:
>
>     <Distribution>
>         Name simple_stripe
>         Param strip_size
>         Value 4194304
>     </Distribution>
>
> -Phil
>
> Nirmal Thacker wrote:
>> Hello
>>
>> I am using PVFS2-1.5.1 and as far as I know, to modify the default
>> stripe size of PVFS2, I must modify the header
>> include/pvfs2-dist-simple-stripe.h .
>>
>> Strangely , I did so and rebuilt the source, yet the pvfs2-viewdist
>> still shows me the default striping for any new files created with the
>> modified pvfs2 build!
>>
>> Nirmal
>>
>>
>> _______________________________________________
>> Pvfs2-users mailing list
>> Pvfs2-users at beowulf-underground.org
>> http://www.beowulf-underground.org/mailman/listinfo/pvfs2-users
>

-------------- next part --------------
[D 12:50:55.714082] PVFS2 Server version 1.5.1 starting.
[E 12:50:55.718348] Error: /home/thacker/etc/pvfs2-fs.conf line 47: Option can't be defined in that context[E 11/04 12:50] Could not find handle range for host (null)
[E 11/04 12:50] Please make sure that the host names in /home/thacker/etc/pvfs2-fs.conf and /home/thacker/etc/pvfs2-server.conf-node23 are consistent
[D 11/04 12:50] PVFS2 Server: storage space created. Exiting.
-------------- next part --------------
<Defaults>
	UnexpectedRequests 50
	LogFile /tmp/pvfs2-server.log
	EventLogging none
	LogStamp datetime
	BMIModules bmi_tcp
	FlowModules flowproto_multiqueue
	PerfUpdateInterval 1000
	ServerJobBMITimeoutSecs 30
	ServerJobFlowTimeoutSecs 30
	ClientJobBMITimeoutSecs 300
	ClientJobFlowTimeoutSecs 300
	ClientRetryLimit 5
	ClientRetryDelayMilliSecs 2000
</Defaults>

<Aliases>
	Alias node15 tcp://node15:3334
	Alias node23 tcp://node23:3334
	Alias node24 tcp://node24:3334
	Alias node27 tcp://node27:3334
	Alias node28 tcp://node28:3334
</Aliases>

<Filesystem>
	Name pvfs2-fs
	ID 299784600
	RootHandle 1048576
	<MetaHandleRanges>
		Range node15 4-858993461
	</MetaHandleRanges>
	<DataHandleRanges>
		Range node23 858993462-1717986919
		Range node24 1717986920-2576980377
		Range node27 2576980378-3435973835
		Range node28 3435973836-4294967293
	</DataHandleRanges>
	<StorageHints>
		TroveSyncMeta yes
		TroveSyncData no
	</StorageHints>
	<Distribution>
		Name	simple_stripe
		Param	strip_size
		Value	1048576
	</Distribution>
</Filesystem>