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From: Todd Gill <tgill@redhat.com>
To: dm-devel@redhat.com
Subject: Re: [PATCH] Introducing multipath C API <libdmmp/libdmmp.h>
Date: Mon, 1 Feb 2016 08:13:53 -0500	[thread overview]
Message-ID: <56AF5A11.70000@redhat.com> (raw)
In-Reply-To: <56A9DC24.3050507@suse.de>

On 01/28/2016 04:15 AM, Hannes Reinecke wrote:
> 
> I would very much advocate to use the IPC interface into multipathd;
> we can easily define a stable ABI for that.

Do you have a preference for the format of the API?

Are you thinking JSON, JSON-RPC, YAML, XML, XML-RPC?

The user of the API would write a command to the netlink socket that
multiapthd already listens? the command would be something like:

multipathd show map topology JSON

Just looking to confirm I understand.

> ATM it's just being use for the userland CLI, and hence it'll return
> human-readable output. But I don't have any issues to define a
> machine-readable output, too, so that it can be easily parsed from
> other programs.

I've abandoned the approach of putting a d-bus thread in multipathd.
But, I'm still hoping to help higher level tools understand the
multipath picture (and help users manage/monitor it).

Thanks for any help,
Todd

  parent reply	other threads:[~2016-02-01 13:13 UTC|newest]

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-01-28  3:52 [PATCH] Introducing multipath C API <libdmmp/libdmmp.h> Gris Ge
2016-01-28  9:15 ` Hannes Reinecke
2016-01-28  9:40   ` Gris Ge
2016-02-01 13:13   ` Todd Gill [this message]
2016-02-01 13:36     ` Hannes Reinecke
2016-02-12  8:10       ` [PATCH V2] Introducing multipath C API Gris Ge
2016-02-12  8:10         ` [PATCH V2] Introducing multipath C API <libdmmp/libdmmp.h> Gris Ge
2016-03-04 16:06           ` Benjamin Marzinski
2016-03-05  9:46             ` Gris Ge
2016-07-01 12:46           ` [PATCH V3 0/3] Introducing multipath C API Gris Ge
2016-07-01 12:46             ` [PATCH V3 1/3] multipath-tools: Increase MAX_REPLY_LEN Gris Ge
2016-07-01 14:46               ` Hannes Reinecke
2016-07-02  0:25                 ` Gris Ge
2016-07-04  6:05                   ` Hannes Reinecke
2016-07-04  9:11                     ` Gris Ge
2016-07-04  9:17                       ` [PATCH V4 0/3] Introducing multipath C API Gris Ge
2016-07-04  9:17                         ` [PATCH V4 1/3] multipath-tools: New way to limit the IPC command length Gris Ge
2016-07-04  9:17                         ` [PATCH V4 2/3] multipath-tools: Set errno mpath_recv_reply() when failure Gris Ge
2016-07-04  9:17                         ` [PATCH V4 3/3] multipath-tools: Introducing multipath C API Gris Ge
2016-07-04  9:27                         ` [PATCH V4 0/3] " Gris Ge
2016-07-04  9:29                         ` Please ignore this patch set. ([PATCH V4 0/3] Introducing multipath C API) Gris Ge
2016-07-04  9:40                         ` [PATCH V5 0/3] Introducing multipath C API Gris Ge
2016-07-04  9:40                           ` [PATCH V5 1/3] multipath-tools: New way to limit the IPC command length Gris Ge
2016-07-04  9:40                           ` [PATCH V5 2/3] multipath-tools: Set errno mpath_recv_reply() when failure Gris Ge
2016-07-04  9:40                           ` [PATCH V5 3/3] multipath-tools: Introducing multipath C API Gris Ge
2016-07-01 12:46             ` [PATCH V3 2/3] multipath-tools: Set errno mpath_recv_reply() when failure Gris Ge
2016-07-01 12:46             ` [PATCH V3 3/3] multipath-tools: Introducing multipath C API <libdmmp/libdmmp.h> Gris Ge
2016-07-01 12:55             ` [PATCH " Gris Ge
2016-07-01 13:06             ` [PATCH V3 " Gris Ge
2016-07-12  6:50 ` [PATCH V6 0/3] Introducing multipath C API Gris Ge
2016-07-12  6:50   ` [PATCH V6 1/3] multipath-tools: New way to limit the IPC command length Gris Ge
2016-07-15 21:35     ` Benjamin Marzinski
2016-07-18 12:38       ` Gris Ge
2016-08-12 15:57       ` Bart Van Assche
2016-08-12 21:35         ` Benjamin Marzinski
2016-08-12 21:49           ` Bart Van Assche
2016-07-12  6:50   ` [PATCH V6 2/3] multipath-tools: Set errno mpath_recv_reply() when failure Gris Ge
2016-07-12  6:50   ` [PATCH V6 3/3] multipath-tools: Introducing multipath C API Gris Ge
2016-07-15 21:36   ` [PATCH V6 0/3] " Benjamin Marzinski
2016-08-12 12:12 ` [PATCH V7 0/4] multipath: " Gris Ge
2016-08-12 12:12   ` [PATCH V7 1/4] libmpathcmd: Block SIGPIPE when write() Gris Ge
2016-08-12 16:01     ` Bart Van Assche
2016-08-12 12:12   ` [PATCH V7 2/4] multipath-tools: New way to limit the IPC command length Gris Ge
2016-08-12 15:48     ` Bart Van Assche
2016-08-12 21:53     ` Benjamin Marzinski
2016-08-12 12:12   ` [PATCH V7 3/4] multipath-tools: Set errno mpath_recv_reply() when failure Gris Ge
2016-08-12 12:12   ` [PATCH V7 4/4] multipath-tools: Introducing multipath C API Gris Ge
2017-02-24 12:50     ` [PATCH V5] " Gris Ge
2017-02-27  5:56       ` Christophe Varoqui
2017-02-24 13:07     ` Gris Ge
2016-08-12 13:26   ` [PATCH V7 0/4] multipath: " Gris Ge

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