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fail-over
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Ekke Verheul



Joined: 15 Feb 2006
Posts: 4

Post fail-over Reply with quote

We're testing a fail-over situation with two servers
pointing to each other like this:

Server1:
Distributed Server Mode: Enabled
Sync Interval: 30
Fails before takeover: 1
Driver: WinSock
Port: 10000
Location: Server2

Server2:
Distributed Server Mode: Enabled
Sync Interval: 30
Fails before takeover: 1
Driver: WinSock
Port: 10000
Location: Server1

We started Server1, and it worked OK. We started Server2; it went into fail-over mode. Fine.
We tried a Remote Connection to Server1: that worked. A Remote Connection to Server2 did not work (not active). That seems normal.
Then we stopped the Scheduler on Server1. Server2 polled 3x and took over (auto-pilot mode).
At this time we needed a remote 24x7 connection to Server2 but still couldn't get one. And when we started Server1 again, it entered Master mode and all jobs were executed twice!
Only a re-start of the scheduler on Server2 would help; but we need a remote connection with the fail-over server without a re-start.
We tried the same thing with NamedPipes, but with the same result.
Can you help us?

Thanks!

Ekke
(not Jason)

Wed Feb 15, 2006 1:11 pm View user's profile Send private message
SysOp
Site Admin


Joined: 26 Nov 2006
Posts: 7955

Post Re: fail-over Reply with quote

You need to change the fail-over switch type. Currently you have it configured so when the Standby takes over it doesn't activate the remote-control features and so it doesn't let other schedulers to connect to it. That's what the auto-pilot mode is all about. What you want is a cyclying mode in wich Standby becomes a new Master after the fail-over event. Here is a link to the page describing how to do that
http://www.softtreetech.com/cgi_bin/config.cgi?read=7379

: We're testing a fail-over situation with two servers
: pointing to each other like this: Server1: Distributed Server Mode: Enabled
: Sync Interval: 30
: Fails before takeover: 1
: Driver: WinSock
: Port: 10000
: Location: Server2

: Server2: Distributed Server Mode: Enabled
: Sync Interval: 30
: Fails before takeover: 1
: Driver: WinSock
: Port: 10000
: Location: Server1

: We started Server1, and it worked OK. We started Server2; it went into
: fail-over mode. Fine.
: We tried a Remote Connection to Server1: that worked. A Remote Connection to
: Server2 did not work (not active). That seems normal.
: Then we stopped the Scheduler on Server1. Server2 polled 3x and took over
: (auto-pilot mode).
: At this time we needed a remote 24x7 connection to Server2 but still couldn't
: get one. And when we started Server1 again, it entered Master mode and all
: jobs were executed twice!
: Only a re-start of the scheduler on Server2 would help; but we need a remote
: connection with the fail-over server without a re-start.
: We tried the same thing with NamedPipes, but with the same result.
: Can you help us?

: Thanks!

: Ekke
: (not Jason)

Wed Feb 15, 2006 1:46 pm View user's profile Send private message
Ekke Verheul



Joined: 15 Feb 2006
Posts: 4

Post Re: fail-over Reply with quote

Thanks, that seems to work OK.
Strange, I didn't find this when searching the forum for "fail-over".

: You need to change the fail-over switch type. Currently you have it
: configured so when the Standby takes over it doesn't activate the
: remote-control features and so it doesn't let other schedulers to connect
: to it. That's what the auto-pilot mode is all about. What you want is a
: cyclying mode in wich Standby becomes a new Master after the fail-over
: event. Here is a link to the page describing how to do that
: http://www.softtreetech.com/cgi_bin/config.cgi?read=7379

Thu Feb 16, 2006 5:34 am View user's profile Send private message
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