Re: [SPDK] Running bdevio without a conf file

* Re: [SPDK] Running bdevio without a conf file
@ 2018-09-03 20:31 Andrey Kuzmin
  0 siblings, 0 replies; 14+ messages in thread
From: Andrey Kuzmin @ 2018-09-03 20:31 UTC (permalink / raw)
  To: spdk

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On a similar occasion, I had found it very helpful (with testing standalone
bdevs) to start RPC server right in the bdevperf. The same should be
certainly possible with bdevio; I can push a patch if need be.

HTH,
Andrey

On Mon, Sep 3, 2018, 18:40 Luse, Paul E <paul.e.luse(a)intel.com> wrote:

> Yeah, I'm not getting it.  What I was trying is just:
>
> Window 1:
> sudo ./bdevio --wait-for-rpc
>
> Window 2:
> sudo scripts/rpc.py start_subsystem_init
> Error while connecting to /var/tmp/spdk.sock
> Error details: [Errno 111] Connection refused
>
> And obviously if that had worked I'd have slipped in my bdev contract RPCs
> before using the start RPC.
>
> Thanks
> Paul
>
> -----Original Message-----
> From: SPDK [mailto:spdk-bounces(a)lists.01.org] On Behalf Of Luse, Paul E
> Sent: Monday, September 3, 2018 8:36 AM
> To: Storage Performance Development Kit <spdk(a)lists.01.org>
> Subject: Re: [SPDK] Running bdevio without a conf file
>
> Thanks Jim! That's exactly the patch I was heading down... getting errors
> sending RPCs while bdevio is 'waiting' but haven't read the doc yet, will
> see what I can find....
>
> -----Original Message-----
> From: SPDK [mailto:spdk-bounces(a)lists.01.org] On Behalf Of Harris, James R
> Sent: Monday, September 3, 2018 8:34 AM
> To: Storage Performance Development Kit <spdk(a)lists.01.org>
> Subject: Re: [SPDK] Running bdevio without a conf file
>
> Shared memory ID and multi process in general only works with the NVMe
> driver.
>
> http://www.spdk.io/doc/app_overview.html#cmd_arg_multi_process
>
> Try running bdevio with -wait-for-rpc parameter.  Documentation also
> available in jsonrpc.md.
>
> Jim
>
> Sent from my iPhone
>
> On Sep 3, 2018, at 8:22 AM, Luse, Paul E <paul.e.luse(a)intel.com<mailto:
> paul.e.luse(a)intel.com>> wrote:
>
> Just working on making the crypto module RPC-only and haven't done much
> with RPCs before. I'm trying to run the target in one window (using -I 1)
> and use RPCs to create a NVMe bdev with a crypto on top of it.  The RPCs
> are working as I can confirm with both output and gdb under the spdk target.
>
> However I assumed I could run bdevio in another window with the same
> shared mem parm "./bdevio -I 1" for example and it should work however it
> does not see any bdevs in bdevio_construct_targets()
>
> Am I missing something high level or really simple here?
>
> Thx
> Paul
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-- 

Regards,
Andrey

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