HMS-8
Open
Support HMS automated failover using 'p4 failover' command.
Original title was: Support HMS automated failover of 'standby'
(journalcopy) replica.
HMS supports failover of a forwarding replica, but not a
forwarding 'standby' replica that uses journalcopy.
The mkrep.sh script knows the details of creating a replica
designated as 'ha' (High Availability) or 'ham' (metadata-only
variant of 'ha'). Replicas with these tags are sutiable for
use with the 'p4 failover' command, which implies many thing:
* The Services in server spec is 'standby' or 'forwarding-standby'
* The rpl.journalcopy.location=1 is set.
* They are creatd with P4D >= 2018.2, and have the ReplicatinFrom
field in the server spec set.
* Their journalPrefix matches the master.
This will need to support a preflight of failover, using 'p4 failover'
without the '--yes' flag.
We will also want to drop support for other forms of failover, to
ensure best results. It is TBD whether that will be done as part
of implementing this job.
Original title was: Support HMS automated failover of 'standby'
(journalcopy) replica.
HMS supports failover of a forwarding replica, but not a
forwarding 'standby' replica that uses journalcopy.
The mkrep.sh script knows the details of creating a replica
designated as 'ha' (High Availability) or 'ham' (metadata-only
variant of 'ha'). Replicas with these tags are sutiable for
use with the 'p4 failover' command, which implies many thing:
* The Services in server spec is 'standby' or 'forwarding-standby'
* The rpl.journalcopy.location=1 is set.
* They are creatd with P4D >= 2018.2, and have the ReplicatinFrom
field in the server spec set.
* Their journalPrefix matches the master.
This will need to support a preflight of failover, using 'p4 failover'
without the '--yes' flag.
We will also want to drop support for other forms of failover, to
ensure best results. It is TBD whether that will be done as part
of implementing this job.
- Status
- Open
- Project
- perforce_software-hms
- Severity
- B
- Reported By
- C. Thomas Tyler
- Reported Date
- 5 years ago
- Modified By
- C. Thomas Tyler
- Modified Date
- 4 years ago
- Owned By
- tom_tyler
- Dev Notes
- This job, HMS-8, was once SDP-204.
- Component
- fo
- Type
- Feature
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