HAProxy
On 08/07/14 04:20, GMail wrote:
What application are you clustering?
Sent from my iPhone
On 7 Aug 2014, at 11:17, "Jon via smartos-discuss"
<[email protected]> wrote:
What software would be ideal to do cluster management between two base64 14.2.0
Zones on separate physical nodes with a dedicated connection?
I am attempting to configure an "active/active" cluster where hostnames have two A
records and if a node fails the other node "steals" the IPs without starting/restarting
any daemons.
On 08/06/14 08:51, Keith Wesolowski via smartos-discuss wrote:
On Wed, Aug 06, 2014 at 06:31:24AM -0700, Jon via smartos-discuss wrote:
What is the illumos / SmartOS equivalent to Linux's sysctl setting
net.ipv4.ip_nonlocal_bind ?
There is none.
For the benefit of those who don't use GNU/Linux and don't know what
this setting does there, I'm told it's commonly used for IP address
takeover/failover applications, allowing a process to bind a socket to
an address that is not configured on any local interface.
The correct way to handle this -- which would have obviated the need for
the engineering work they did to create this and works everywhere, had
they only spent a few minutes researching existing solutions before
adding yet another sysctl -- is to plumb the interface with the
address(es) to be taken over, then simply leave it down on all members
of the cluster except the active one. When takeover is desired, the
application or cluster management software simply sets IFF_UP on that
address. Binding is permitted when the interface is down, so long as
the address being bound to is configured. This approach was used in the
Fishworks appliances and worked very well there; I assume it is used by
many other such applications as well.
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