- **status**: unassigned --> assigned
- **assigned_to**: A V Mahesh (AVM)
---
** [tickets:#2085] CKPT : IMM attributes for ckpt table are increased by 1,
when ckpt open returns TIME_OUT**
**Status:** assigned
**Milestone:** 4.7.2
**Created:** Fri Sep 30, 2016 05:13 AM UTC by Srikanth R
**Last Updated:** Fri Sep 30, 2016 05:13 AM UTC
**Owner:** A V Mahesh (AVM)
Changeset : 7997 5.1.FC
IMM attributes for ckpt table are increased by 1, when ckpt open returns
TIME_OUT. Below is the flow of steps in which how application uses CKPT.
-> Initialize with ckpt with callbacks. API returned SA_AIS_OK
-> Invoke selection object. API returned SA_AIS_OK
-> Create a checkpoint using async option. API returned SA_AIS_OK
-> Kill ckpnd process.
-> Check for the callbacks and check the IMM attribute of CKPT object.
Callback is invoked, in which return value is ERR_TIMEOUT. Spec mandates
that, api should be called again to check whether checkpoint creation is
successful or not. If the further call returns ERR_EXIST, the previous call is
successful or the further call returns SA_AIS_OK, the previous call is
unsuccessful.
-> As the callback returned SA_AIS_ERR_TIMEOUT, invoked the checkpoint
creation api async again. This time, api and both callback returned SA_AIS_OK.
Now if you check the attributes for CKPT table object, the attributes
saCkptCheckpointNumOpeners, saCkptCheckpointNumReaders and
saCkptCheckpointNumWriters are having a value of 2, instead of expected value
1.
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