Gentle reminder. On Tue, 20 Dec 2022, 12:53 Surinder Mehra, <[email protected]> wrote:
> Hi, > If we have cache synchronization mode as Primary Sync and read from backup > as true(default), would this cause consistency issues if primary goes down > without flushing all data to disk. > I understand WAL is used to replay unflushed data when a node comes back > online again. But if say out of 10 records written to cache, only 5 of them > were written to disk by checkpointing thread and data was not replicated to > the backup node yet(PRIMARY-SYNC) when primary node went node, the client > would assume backup node would have all 10 records . But it might not be > the case. > > So am I correct in assuming we need to either turn off read from backup or > change cache synchronization mode to FULL-SYNC > > Answer to stackoverflow question below suggests disabling read from > backup. Do we need to disable it even in FULL-SYNC mode ? > > > https://stackoverflow.com/questions/67598175/ignite-read-stale-data-from-backup-node >
