- **assigned_to**: A V Mahesh (AVM) --> nobody
- **Blocker**: --> False
---
** [tickets:#1700] cpsv: re-create the checkpoint without any sections in case
the all replicas is lost**
**Status:** assigned
**Milestone:** future
**Created:** Fri Mar 11, 2016 04:15 AM UTC by A V Mahesh (AVM)
**Last Updated:** Mon Apr 04, 2016 04:18 AM UTC
**Owner:** nobody
This is an extinction ticket ` checkpoint replicas during headless state V3
[#1621]`.
While enhancing the ticket #1621 the Suggestion was to re-create the checkpoint
without
any sections in case the all replicas is lost. If the sections were
re-created, the application wouldn't know that data has been lost. I
think the BAD_HANDLE approach is okay since we have used it in other
services, but I see it as kind of a hack solution that is not really
in line with the specs.
The specs never intended BAD_HANDLE to be something that can happen
spontaneously on a previously valid handle, lest you are suffering
from memory corruption. In the future we could consider the
feasibility of avoiding spontaneous BAD_HANDLE where possible, and
in CKPT I think it may be possible by re-creating the checkpoints.
This change is quite much and requires a detailed design in
different scenarios. I would suggest to create an enhancement ticket for
this.
More detailed information of limitations is in cpsv service README.HEADLESS
file.
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