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From: Wendy Cheng <wcheng@redhat.com>
To: cluster-devel.redhat.com
Subject: [Cluster-devel] Re: [NFS] [PATCH 3/4 Revised] NLM - kernel lockd-statd changes
Date: Tue, 10 Apr 2007 14:16:59 -0400	[thread overview]
Message-ID: <461BD49B.7090503@redhat.com> (raw)
In-Reply-To: <200704101109.44333.okir@lst.de>

Olaf Kirch wrote:
> But - why do you need to record the address on which the request was
> received. at all? Don't you know beforehand on which IP addresses you
> will be servicing NFS requests, and which will need to be migrated?
>
>   

Sorry, somehow I missed this question ...

The intent is to avoid sending notifications to *all* clients.  The 
cluster user mode scripts will have to associate the floating IP(s) with 
fsid(s) and relies heavily on the information passed by rpc.statd's 
ha-callout program. My test ha-callout user mode program shows the 
following:

/mnt/lockd/ha-pg/hatest is invoked with 3 arguments.
    add-client
    192.168.24.146
    192.168.24.149
/mnt/lockd/ha-pg/hatest is invoked with 3 arguments.
    del-client
    192.168.24.145
    192.168.24.149

These info(s) will be used to construct the notification list when 
notification actually take places.

-- Wendy



WARNING: multiple messages have this Message-ID (diff)
From: Wendy Cheng <wcheng@redhat.com>
To: Olaf Kirch <okir@lst.de>
Cc: cluster-devel@redhat.com, Lon Hohberger <lhh@redhat.com>,
	nfs@lists.sourceforge.net
Subject: Re: [PATCH 3/4 Revised] NLM - kernel lockd-statd changes
Date: Tue, 10 Apr 2007 14:16:59 -0400	[thread overview]
Message-ID: <461BD49B.7090503@redhat.com> (raw)
In-Reply-To: <200704101109.44333.okir@lst.de>

Olaf Kirch wrote:
> But - why do you need to record the address on which the request was
> received. at all? Don't you know beforehand on which IP addresses you
> will be servicing NFS requests, and which will need to be migrated?
>
>   

Sorry, somehow I missed this question ...

The intent is to avoid sending notifications to *all* clients.  The 
cluster user mode scripts will have to associate the floating IP(s) with 
fsid(s) and relies heavily on the information passed by rpc.statd's 
ha-callout program. My test ha-callout user mode program shows the 
following:

/mnt/lockd/ha-pg/hatest is invoked with 3 arguments.
    add-client
    192.168.24.146
    192.168.24.149
/mnt/lockd/ha-pg/hatest is invoked with 3 arguments.
    del-client
    192.168.24.145
    192.168.24.149

These info(s) will be used to construct the notification list when 
notification actually take places.

-- Wendy


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  parent reply	other threads:[~2007-04-10 18:16 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-04-05 21:52 [Cluster-devel] [PATCH 3/4 Revised] NLM - kernel lockd-statd changes Wendy Cheng
2007-04-05 21:52 ` Wendy Cheng
2007-04-10  9:09 ` Olaf Kirch
2007-04-10  9:10   ` [Cluster-devel] Re: [NFS] " Olaf Kirch
2007-04-10 14:41   ` Lon Hohberger
2007-04-10 14:41     ` Lon Hohberger
2007-04-10 15:00   ` [Cluster-devel] Re: [NFS] " Wendy Cheng
2007-04-10 15:00     ` Wendy Cheng
2007-04-10 18:16   ` Wendy Cheng [this message]
2007-04-10 18:16     ` Wendy Cheng
     [not found]   ` <message from Olaf Kirch on Tuesday April 10>
2007-04-11  4:50     ` [Cluster-devel] Re: [NFS] " Neil Brown
2007-04-11  4:50       ` Neil Brown
2007-04-13 19:16       ` [Cluster-devel] Re: [NFS] " Lon Hohberger
2007-04-13 19:16         ` Lon Hohberger
2007-04-13 19:31         ` [Cluster-devel] Re: [NFS] " Wendy Cheng
2007-04-13 19:31           ` Wendy Cheng
2007-04-17 11:52         ` [Cluster-devel] Re: [NFS] " Olaf Kirch
2007-04-17 11:52           ` Olaf Kirch
2007-04-17 13:24           ` [Cluster-devel] Re: [NFS] " Wendy Cheng
2007-04-17 13:24             ` Wendy Cheng
2007-04-17 14:51             ` [Cluster-devel] Re: [NFS] " Olaf Kirch
2007-04-17 14:51               ` Olaf Kirch
2007-04-17 15:09               ` [Cluster-devel] Re: [NFS] " Wendy Cheng
2007-04-17 15:09                 ` Wendy Cheng

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