[Gluster-devel] ha example

[Krishna Srinivas]

oops .... forgot to CC gluster-devel...

On Fri, Oct 17, 2008 at 12:58 AM, Krishna Srinivas
<krishna at zresearch.com> wrote:
> On Fri, Oct 17, 2008 at 12:50 AM, Mickey Mazarick
> <mic at digitaltadpole.com> wrote:
>> Ultimately we want to use it permanently. We are looking for a system that
>> lets our infiniband system fail over to gigabit ethernet.
>> For us,
>> subvolume one = server1 over ibverbs subvolume two = server1 over tcp
>>
>> How does it currently handle failure? Will it attempt to connect to one then
>> fail over to two on every read? After a number of failures will it always
>> use 2?
>
> HA will maintain the state of an "operation", if it fails on one
> subvol because of connection failure, it tries the operaion on the
> next subvol, application issuing the system call like read/write will
> not see the connection loss.
>
>>
>> Thanks!
>>
>> Krishna Srinivas wrote:
>>>
>>> Hi Mickey,
>>>
>>> config is simple, you give a list of subvolumes list:
>>> volume ha1
>>>  type cluster/ha
>>>  subvolumes one two
>>> end-volume
>>>
>>> Do you just want to test it or you are planning on a setup which needs
>>> it? (if so can you give me the setup details?, I am just curious)
>>>
>>> The code is in the TLA, but "locking" code flow needs some changes.
>>> You can try it out though.
>>>
>>> Thanks
>>> Krishna
>>>
>>>
>>> On Fri, Oct 17, 2008 at 12:10 AM, Mickey Mazarick
>>> <mic at digitaltadpole.com> wrote:
>>>
>>>>
>>>> Can someone give me a quick example of how the ha xlator works?  I for
>>>> one
>>>> want to test it. :-)
>>>>
>>>> Thanks!
>>>> --
>>>>
>>>>
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>>>>
>>>>
>>
>>
>> --
>>
>