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From: "Burakov, Anatoly" <anatoly.burakov@intel.com>
To: "Tan, Jianfeng" <jianfeng.tan@intel.com>, "dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] [PATCH v3 3/5] eal: use locks to determine if secondary process is active
Date: Wed, 28 Feb 2018 10:15:18 +0000	[thread overview]
Message-ID: <e0371933-89a9-2766-9708-6a34d5a5a636@intel.com> (raw)
In-Reply-To: <ED26CBA2FAD1BF48A8719AEF02201E36514553E5@SHSMSX103.ccr.corp.intel.com>

On 28-Feb-18 1:26 AM, Tan, Jianfeng wrote:
> 
> 
>> -----Original Message-----
>> From: Burakov, Anatoly
>> Sent: Tuesday, February 27, 2018 10:36 PM
>> To: dev@dpdk.org
>> Cc: Tan, Jianfeng
>> Subject: [PATCH v3 3/5] eal: use locks to determine if secondary process is
>> active
>>
>> Previously, IPC would remove sockets it considers to be "inactive"
>> based on whether they have responded.
> 
> To be more precise, it was not depending on if the other side responses or not; it was depending on sendmsg return error, ECONNREFUSED.
> 
>> Change this to create lock
>> files in addition to socket files, so that we can determine if
>> secondary process is active before attempting to communicate with
>> it. That way, we can distinguish secondaries that are alive but
>> are not responding, from those that have already died.
> 
> I think, by the old way, we can also "distinguish secondaries that are alive but are not responding, from those that have already died", can't we?
> 
> Thanks,
> Jianfeng
> 

I rechecked, and you're right. For some reason i thought that nb_sent 
gets incremented even if there was ECONNREFUSED error. It doesn't, so 
the effect is the same. I'll drop this patch so (well, i'll keep the 
naming stuff, as it makes things a bit easier).

-- 
Thanks,
Anatoly

  reply	other threads:[~2018-02-28 10:15 UTC|newest]

Thread overview: 57+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-02-22 18:21 [dpdk-dev] [PATCH 1/3] eal: add internal flag indicating init has completed Anatoly Burakov
2018-02-22 18:21 ` [dpdk-dev] [PATCH 2/3] eal: don't process IPC messages before init finished Anatoly Burakov
2018-02-22 18:21 ` [dpdk-dev] [PATCH 3/3] eal: use locks to determine if secondary process is active Anatoly Burakov
2018-03-02 15:14   ` [dpdk-dev] [PATCH v4 1/5] eal: add internal flag indicating init has completed Anatoly Burakov
2018-03-07 16:56     ` [dpdk-dev] [PATCH v5 0/6] Improvements for DPDK IPC Anatoly Burakov
2018-03-13 17:42       ` [dpdk-dev] [PATCH v6 " Anatoly Burakov
2018-03-21 17:43         ` Thomas Monjalon
2018-03-13 17:42       ` [dpdk-dev] [PATCH v6 1/6] eal: add internal flag indicating init has completed Anatoly Burakov
2018-03-13 20:59         ` Bruce Richardson
2018-03-13 17:42       ` [dpdk-dev] [PATCH v6 2/6] eal: abstract away IPC socket path generation Anatoly Burakov
2018-03-13 17:42       ` [dpdk-dev] [PATCH v6 3/6] eal: don't hardcode socket filter value in IPC Anatoly Burakov
2018-03-13 17:42       ` [dpdk-dev] [PATCH v6 4/6] eal: lock IPC directory on init and send Anatoly Burakov
2018-03-13 17:42       ` [dpdk-dev] [PATCH v6 5/6] eal: simplify IPC sync request timeout code Anatoly Burakov
2018-03-13 17:42       ` [dpdk-dev] [PATCH v6 6/6] eal: ignore messages until init is complete Anatoly Burakov
2018-03-07 16:56     ` [dpdk-dev] [PATCH v5 1/6] eal: add internal flag indicating init has completed Anatoly Burakov
2018-03-07 16:56     ` [dpdk-dev] [PATCH v5 2/6] eal: abstract away IPC socket path generation Anatoly Burakov
2018-03-11  9:02       ` Tan, Jianfeng
2018-03-07 16:56     ` [dpdk-dev] [PATCH v5 3/6] eal: don't hardcode socket filter value in IPC Anatoly Burakov
2018-03-07 16:56     ` [dpdk-dev] [PATCH v5 4/6] eal: lock IPC directory on init and send Anatoly Burakov
2018-03-11  9:14       ` Tan, Jianfeng
2018-03-07 16:56     ` [dpdk-dev] [PATCH v5 5/6] eal: simplify IPC sync request timeout code Anatoly Burakov
2018-03-11  9:25       ` Tan, Jianfeng
2018-03-07 16:56     ` [dpdk-dev] [PATCH v5 6/6] eal: ignore messages until init is complete Anatoly Burakov
2018-03-12  1:42       ` Tan, Jianfeng
2018-03-12  8:58         ` Burakov, Anatoly
2018-03-02 15:14   ` [dpdk-dev] [PATCH v4 2/5] eal: use file to check if secondary process is ready Anatoly Burakov
2018-03-06 11:03     ` Burakov, Anatoly
2018-03-02 15:14   ` [dpdk-dev] [PATCH v4 3/5] eal: prevent secondary process init while sending messages Anatoly Burakov
2018-03-02 15:14   ` [dpdk-dev] [PATCH v4 4/5] eal: don't hardcode socket filter value in IPC Anatoly Burakov
2018-03-02 15:14   ` [dpdk-dev] [PATCH v4 5/5] eal: simplify IPC sync request timeout code Anatoly Burakov
2018-02-22 18:32 ` [dpdk-dev] [PATCH 1/3] eal: add internal flag indicating init has completed Burakov, Anatoly
2018-02-27 13:23 ` [dpdk-dev] [PATCH v2 1/5] " Anatoly Burakov
2018-02-27 14:35   ` [dpdk-dev] [PATCH v3 " Anatoly Burakov
2018-02-28  2:12     ` Tan, Jianfeng
2018-02-28  9:43       ` Burakov, Anatoly
2018-02-27 14:35   ` [dpdk-dev] [PATCH v3 2/5] eal: don't process IPC messages before init finished Anatoly Burakov
2018-02-28  1:09     ` Tan, Jianfeng
2018-02-28  9:45       ` Burakov, Anatoly
2018-02-28  4:00     ` Wiles, Keith
2018-02-28  9:47       ` Burakov, Anatoly
2018-02-27 14:35   ` [dpdk-dev] [PATCH v3 3/5] eal: use locks to determine if secondary process is active Anatoly Burakov
2018-02-28  1:26     ` Tan, Jianfeng
2018-02-28 10:15       ` Burakov, Anatoly [this message]
2018-02-28  4:17     ` Wiles, Keith
2018-02-28 10:17       ` Burakov, Anatoly
2018-02-27 14:35   ` [dpdk-dev] [PATCH v3 4/5] eal: prevent secondary process init while sending messages Anatoly Burakov
2018-02-28  1:58     ` Tan, Jianfeng
2018-02-28 10:19       ` Burakov, Anatoly
2018-02-28 15:49         ` Tan, Jianfeng
2018-02-27 14:35   ` [dpdk-dev] [PATCH v3 5/5] eal: don't hardcode socket filter value in IPC Anatoly Burakov
2018-02-28  1:52     ` Tan, Jianfeng
2018-02-28 10:21       ` Burakov, Anatoly
2018-02-28 15:01         ` Tan, Jianfeng
2018-02-27 13:23 ` [dpdk-dev] [PATCH v2 2/5] eal: don't process IPC messages before init finished Anatoly Burakov
2018-02-27 13:23 ` [dpdk-dev] [PATCH v2 3/5] eal: use locks to determine if secondary process is active Anatoly Burakov
2018-02-27 13:23 ` [dpdk-dev] [PATCH v2 4/5] eal: prevent secondary process init while sending messages Anatoly Burakov
2018-02-27 13:23 ` [dpdk-dev] [PATCH v2 5/5] eal: don't hardcode socket filter value in IPC Anatoly Burakov

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