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jeremyhi
c8ea00b13f
* feat(log-store): add object store WAL metrics and the conditional-create fault matrix Export the remaining fifteen metrics of the object store WAL under greptime_logstore_object_store_wal_: the write path timers and object shape histograms, created objects, the indexed object and byte gauges, recovery and read timers, recovered objects, create conflicts and failures, poisoned stores, and stalled appends with their wait. Add a table-driven fault matrix that drives every outcome of a conditional create and of the start object through the store and asserts the failed waiters, the poison, the sequence, both indexed gauges at the failure, the movement of every metric, and what a read sees afterwards. The test fails if a row of the failure matrix has no case. Every test of the store module now holds one lock, since the metrics are process-wide. Signed-off-by: jeremyhi <fengjiachun@gmail.com> * fix(log-store): count every conditional create of the object store WAL Count the outcome of the start object's create, and count a create that met a different object as a conflict before the epoch of that object is read, so a failed epoch read no longer hides the conflict. The fault matrix waits until no store actor of an earlier test is alive, checks that a poisoned read returns the recorded terminal error, and covers a conflicting object whose header cannot be read. Signed-off-by: jeremyhi <fengjiachun@gmail.com> --------- Signed-off-by: jeremyhi <fengjiachun@gmail.com>