Some tests fail sporadically when building on Debian
hillu opened this issue · 4 comments
Debian bug 799472 describes that leveldb can't be built reliably from source due to failing tests. I have been able to reproduce the following test failures:
--- FAIL: TestCompaction (0.02s)
compaction_test.go:647: "+E": ldb: got "Aa.BC.Bb.Dad.", want "ABCDbd.".
--- FAIL: TestTableCacheEvictions (0.04s)
table_cache_test.go:77: numStillOpen is 101, want <= 100
--- FAIL: TestTableCacheRandomAccessConcurrent (0.05s)
table_cache_test.go:70: i=176: table closed too many or too few times: opened 5 times, closed 3 times
Just curious if there is any progress on this?
I wasn't able to reproduce the flaky failures, but I made an educated guess to fix the three failures in the OP.
(The OP also links to a debian bug where TestLock fails, but that confuses me, as that test shouldn't be flaky at all. If a child process can lock an already locked file, that's a real problem.)
Anyway, does it look better on your end?
Sorry for the long delay in replying.
I still was able to reproduce at least the TestCompaction error with 0e15329 on pretty much the same sbuild setup that I used in January. I have started repeated builds of cbf1977 on the same setup and so far, things are looking good. We may get the package (and stenographer for which I had originally packaged it) into Debian before the stretch release, after all.
I also ran test loops since this morning and didn't get a test failure so far. While it's difficult to prove that non-deterministic issues like this are fixed for good, I think this issue can be closed.