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Steve Loughran commented on HADOOP-9361: ---------------------------------------- any meet up would come after. # it's not a change, just a documentation of what HDFS does and tightening of the others -driven by tests on their behaviour # Suresh has spent a few hours reviewing it, don't worry. # we need the fixes to S3N in as soon as possible, as the jets3t migration triggers NPEs without tightened error handling. Everything else is really tests -which don't break anything- and tightened exceptions. Which, as they are made closer to HDFS, "shouldn't". > Strictly define the expected behavior of filesystem APIs and write tests to > verify compliance > --------------------------------------------------------------------------------------------- > > Key: HADOOP-9361 > URL: https://issues.apache.org/jira/browse/HADOOP-9361 > Project: Hadoop Common > Issue Type: Improvement > Components: fs, test > Affects Versions: 3.0.0, 2.4.0 > Reporter: Steve Loughran > Assignee: Steve Loughran > Attachments: HADOOP-9361-001.patch, HADOOP-9361-002.patch, > HADOOP-9361-003.patch, HADOOP-9361-004.patch, HADOOP-9361-005.patch, > HADOOP-9361-006.patch, HADOOP-9361-007.patch, HADOOP-9361-008.patch, > HADOOP-9361-009.patch, HADOOP-9361-011.patch, HADOOP-9361-012.patch, > HADOOP-9361-013.patch, HADOOP-9361-014.patch > > > {{FileSystem}} and {{FileContract}} aren't tested rigorously enough -while > HDFS gets tested downstream, other filesystems, such as blobstore bindings, > don't. > The only tests that are common are those of {{FileSystemContractTestBase}}, > which HADOOP-9258 shows is incomplete. > I propose > # writing more tests which clarify expected behavior > # testing operations in the interface being in their own JUnit4 test classes, > instead of one big test suite. > # Having each FS declare via a properties file what behaviors they offer, > such as atomic-rename, atomic-delete, umask, immediate-consistency -test > methods can downgrade to skipped test cases if a feature is missing. -- This message was sent by Atlassian JIRA (v6.2#6252)