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UNIX for Beginners Questions & Answers
Cluster a custom application
Post 303034528 by Peasant on Sunday 28th of April 2019 02:52:31 AM
04-28-2019
Moderator
Any systemd or init script can be implemented in linux cluster as a resource.
So, you will need to write one of those, it should be fairly simple reading the docs.
Be sure to use resource group, as resources in it will follow constraint order, start from first defined to last, stop from last defined to first.
But, applications are mostly load balanced not clustered in classic way, as stomp mentioned.
Can you elaborate more on your application receiving data on any port, does it listen on thousands of ports
Using opensource with haproxy and keepalived one can do great things with backend app balancing and failover using VRRP.
Fairly short and simple configuration, unlike linux cluster which is a complex product.
Keep it simple, stupid if you can.
Hope that helps.
Regards
Peasant.
So, you will need to write one of those, it should be fairly simple reading the docs.
Be sure to use resource group, as resources in it will follow constraint order, start from first defined to last, stop from last defined to first.
But, applications are mostly load balanced not clustered in classic way, as stomp mentioned.
Can you elaborate more on your application receiving data on any port, does it listen on thousands of ports
Using opensource with haproxy and keepalived one can do great things with backend app balancing and failover using VRRP.
Fairly short and simple configuration, unlike linux cluster which is a complex product.
Keep it simple, stupid if you can.
Hope that helps.
Regards
Peasant.
This User Gave Thanks to Peasant For This Post:
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LEARN ABOUT OPENSOLARIS
cl_eventd
cl_eventd(1M) System Administrator Commands cl_eventd(1M) NAME
cl_eventd - Cluster event daemon SYNOPSIS
/usr/cluster/lib/sc/cl_eventd [-v] DESCRIPTION
The cl_eventd daemon is started at boot time to monitor system events that are generated by other cluster components. This daemon also for- wards these events to other cluster nodes. Only the events of class EC_Cluster are forwarded to other cluster nodes. OPTIONS
The following option is supported: -v Send additional troubleshooting and debugging information to syslogd(1M). FILES
/usr/cluster/lib/sc/cl_eventd Cluster event daemon ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWscu | +-----------------------------+-----------------------------+ SEE ALSO
syseventd(1M), syslog(3C) NOTES
The cl_eventd daemon does not provide a publicly accessible interface. Sun Cluster 3.2 5 May 2006 cl_eventd(1M)