* no_path_retry: NO_PATH_RETRY_FAIL vs NO_PATH_RETRY_UNDEF
@ 2016-11-07 16:11 Xose Vazquez Perez
2016-11-07 18:55 ` Benjamin Marzinski
0 siblings, 1 reply; 2+ messages in thread
From: Xose Vazquez Perez @ 2016-11-07 16:11 UTC (permalink / raw)
To: Kiyoshi Ueda, Christophe Varoqui, Benjamin Marzinski,
Hannes Reinecke
Cc: device-mapper development
Hi,
NO_PATH_RETRY_UNDEF is 0
no_path_retry Specify what to do when all paths are down. Possible values are:
value > 0 number of retries until disable I/O queueing.
fail for immediate failure (no I/O queueing).
queue for never stop I/O queueing. Similar to queue_if_no_path.
Is there any real difference?
Thank you.
^ permalink raw reply [flat|nested] 2+ messages in thread* Re: no_path_retry: NO_PATH_RETRY_FAIL vs NO_PATH_RETRY_UNDEF
2016-11-07 16:11 no_path_retry: NO_PATH_RETRY_FAIL vs NO_PATH_RETRY_UNDEF Xose Vazquez Perez
@ 2016-11-07 18:55 ` Benjamin Marzinski
0 siblings, 0 replies; 2+ messages in thread
From: Benjamin Marzinski @ 2016-11-07 18:55 UTC (permalink / raw)
To: Xose Vazquez Perez; +Cc: Kiyoshi Ueda, device-mapper development
On Mon, Nov 07, 2016 at 05:11:33PM +0100, Xose Vazquez Perez wrote:
> Hi,
>
>
> NO_PATH_RETRY_UNDEF is 0
>
>
> no_path_retry Specify what to do when all paths are down. Possible values are:
>
> value > 0 number of retries until disable I/O queueing.
>
> fail for immediate failure (no I/O queueing).
>
> queue for never stop I/O queueing. Similar to queue_if_no_path.
>
>
>
> Is there any real difference?
The idea was that if you have NO_PATH_RETRY_UNDEF, then you just use
whatever is in the features line. If you have NO_PATH_RETRY_FAIL, that
takes priority over the features line.
So if someone has
features "1 queue_if_no_path"
then NO_PATH_RETRY_UNDEF gets you the same results as
NO_PATH_RETRY_QUEUE.
-Ben
>
>
> Thank you.
^ permalink raw reply [flat|nested] 2+ messages in thread
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2016-11-07 16:11 no_path_retry: NO_PATH_RETRY_FAIL vs NO_PATH_RETRY_UNDEF Xose Vazquez Perez
2016-11-07 18:55 ` Benjamin Marzinski
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