Use cases for pmempool-check

[Jayashree Mohan]

Hi all,

The pmempool-check utility seems to do a consistency check for pmemblk and pmemlog pools. While libpmemlog and libpmemobj themselves build upon libpmem that provides transactional update guarantees, how frequently would you end up with a scenario that requires the use of pmempool-check? Wouldn't the journaling/logging used by libpmem ensure that such inconsistencies don't occur?

These questions arise in the context of the need to extend pmempool-check utility to libpmemobj. With all the transactional guarantees provided by libpmemobj library, could you state an example scenario where you would need such an extensive check?

Thanks,
Jayashree Mohan