PR #9230 attempt 1 hit an intermittent
TestConcurrentFileOperations/ConcurrentReadWrite failure where stat
returned ENOENT for a path all writers had just succeeded against, and
the captured mount.log carried no signal about which layer dropped the
entry because the relevant lookup logged at V(4).
Two diagnostic-only changes (no behavior change on the happy path):
- weed/mount/weedfs.go: in lookupEntry, when filer GetEntry returns
ErrNotFound for a path whose inode is still tracked locally with no
in-flight create or flush, log Warningf with inode + dirtyHandle +
pendingFlush + localCache + dirCached. This surfaces layer-by-layer
state at the moment of the suspicious ENOENT.
- test/fuse_integration/framework_test.go: on AssertFileExists failure,
dump five 100ms-spaced stat retries, a parent ReadDir, and a direct
O_RDONLY open before failing. Triangulates kernel dentry caching vs
mount lookup vs filer state.
6cbcdf488c