Github user paul-rogers commented on a diff in the pull request: https://github.com/apache/drill/pull/984#discussion_r145520129 --- Diff: exec/java-exec/src/test/java/org/apache/drill/test/ClusterFixture.java --- @@ -226,43 +217,16 @@ private void createConfig(FixtureBuilder builder) throws Exception { serviceSet = null; usesZk = true; - isLocal = false; } else { // Embedded Drillbit. serviceSet = RemoteServiceSet.getLocalServiceSet(); - isLocal = true; } } - private void startDrillbits(FixtureBuilder builder) throws Exception { -// // Ensure that Drill uses the log directory determined here rather than -// // it's hard-coded defaults. WIP: seems to be needed some times but -// // not others. -// -// String logDir = null; -// if (builder.tempDir != null) { -// logDir = builder.tempDir.getAbsolutePath(); -// } -// if (logDir == null) { -// logDir = config.getString(ExecConstants.DRILL_TMP_DIR); -// if (logDir != null) { -// logDir += "/drill/log"; -// } -// } -// if (logDir == null) { -// logDir = "/tmp/drill"; -// } -// new File(logDir).mkdirs(); -// System.setProperty("drill.log-dir", logDir); - - dfsTestTempDir = makeTempDir("dfs-test"); - - // Clean up any files that may have been left from the - // last run. - - preserveLocalFiles = builder.preserveLocalFiles; - removeLocalFiles(); + private void startDrillbits() throws Exception { + dfsTestTempDir = new File(getRootDir(), "dfs-test"); + dfsTestTempDir.mkdirs(); --- End diff -- Is the "preserve local files" behavior maintained? Let me explain. In automated tests, files are created, used, and discarded. But, we also use this framework for ad-hoc tests when debugging. In this case, we create files, end the test, and examine the files by hand. Examples: logs, output files, query profiles, etc. So, for this test fixture (but not for `BaseTestQuery`), we want two modes: * Normal mode: as you have implemented. * "Preserve local files" mode: files are written to `/tmp/drill` (or some other fixed, well-known location, can be within the `target` folder) and preserved past test exit. A method on the `FixtureBuilder` identifies which mode is desired. We turn on the "preserve" mode for ad-hoc tests. For more info on this framework, see [this description](https://github.com/paul-rogers/drill/wiki/Cluster-Fixture-Framework).
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