More than one mogstored daemon

[Yuri Subach]

I modified mogstored source code. First file:
    my $path = "/mogdata/dev1/data";
    my $listen = "X.X.X.X:7500";

Second file:
    my $path = "/mogdata/dev2/data";
    my $listen = "X.X.X.X:7510";

When I'm trying to run these daemons, first works good. But second give 
me this error: "Error creating socket: IO::Socket::INET: Address already 
in use"
If I try to run second before first, it works fine.

The possible reason of this error is following code:

# setup a new socket for handling size requests
my $server = IO::Socket::INET->new(LocalPort => 7501, # FIXME make this 
configurable
                                   Type      => SOCK_STREAM,
                                   Proto     => 'tcp',
                                   Blocking  => 0,
                                   Reuse     => 1,
                                   Listen    => 10 )

How can I change this port number and let mogilefsd know about the change?


Brad Fitzpatrick wrote:

>Should work.
>
>
>On Wed, 28 Sep 2005, Yuri Subach wrote:
>
>  
>
>>Hello,
>>
>>You said that we can create miltiple IPs on the server for running if
>>multiple mogstoreds. Do you think that we can run 3 mogstored daemons on
>>one IP but different ports (7500, 7510, 7520)?
>>
>>Mark Smith wrote:
>>
>>    
>>
>>>If the only point is to replicate data to different disks on your machine,
>>>then you'll have to provide multiple IP address for the machine, or use
>>>127.0.0.1, 127.0.0.2, etc.
>>>
>>>But that defeats half of the usefulness of MogileFS, which is to spread
>>>files across multiple machines, so if someone goes into the server room
>>>with their double-barrel shotgun and takes out one the one server, you lose
>>>your data (unless a disk survives, but still, you'd have to go put it in a
>>>new machine).
>>>
>>>Anyway, it's doable, but you're either going to have to modify mogilefsd or
>>>put multiple IPs on your machine... :)
>>>
>>>On Tue, Aug 16, 2005, Vitaliy F. Scherbakov wrote:
>>>
>>>
>>>      
>>>
>>>>Hello, Everybody.
>>>>
>>>>Problem:
>>>>I have machine with 1 HDD (System) and 3 HDD's (for data), this machine
>>>>has it's own IP-Address. (Data  drives are mounted to /data/devX X in
>>>>[1,2,3]). At mogstored: $path = "/data";
>>>>Brad, said that Mogile could replicate to devices on different hosts.
>>>>Have You any sugestions, how to solve my problem?
>>>>
>>>>Maybe it is possible to run more than one instance of mogstored or
>>>>mogilefsd?
>>>>
>>>>Best regards,
>>>>Vitaliy.
>>>>
>>>>
>>>>
>>>>
>>>>        
>>>>
>>>--
>>>Junior (aka Mark Smith)
>>>junior at danga.com
>>>
>>>Software Engineer
>>>Six Apart / Danga Interactive
>>>
>>>
>>>      
>>>
>>--
>>Yuri Subach  subach at whirix.com
>>Director of Whirix Ltd.  http://www.whirix.com
>>
>>
>>    
>>

-- 
Yuri Subach  subach at whirix.com
Director of Whirix Ltd.  http://www.whirix.com