private void corruptFiles(
Path dirPath,
long[] crcs,
Integer[] corruptBlockIdxs,
DistributedFileSystem dfs,
Path[] files,
int[] numCorruptBlocksInFiles)
throws IOException {
int totalCorruptFiles = DFSUtil.getCorruptFiles(dfs).length;
TestDirectoryRaidDfs.corruptBlocksInDirectory(
conf, dirPath, crcs, corruptBlockIdxs, fileSys, dfsCluster, false, true);
String[] corruptFiles = DFSUtil.getCorruptFiles(dfs);
for (int i = 0; i < numCorruptBlocksInFiles.length; i++) {
if (numCorruptBlocksInFiles[i] > 0) totalCorruptFiles++;
}
assertEquals("files not corrupted", totalCorruptFiles, corruptFiles.length);
for (int i = 0; i < fileSizes.length; i++) {
assertEquals(
"wrong number of corrupt blocks for file " + files[i],
numCorruptBlocksInFiles[i],
RaidDFSUtil.corruptBlocksInFile(dfs, files[i].toUri().getPath(), 0, fileSizes[i]).size());
}
}
/** Corrupt a parity file and wait for it to get fixed. */
private void implParityBlockFix(String testName, boolean local) throws Exception {
LOG.info("Test " + testName + " started.");
int stripeLength = 3;
mySetup(stripeLength);
long[] crcs = new long[3];
int[] seeds = new int[3];
Path dirPath = new Path("/user/dhruba/raidtest");
Path[] files =
TestRaidDfs.createTestFiles(
dirPath, fileSizes, blockSizes, crcs, seeds, fileSys, (short) 1);
Path destPath = new Path("/destraid/user/dhruba");
Path parityFile = new Path("/destraid/user/dhruba/raidtest");
LOG.info("Test " + testName + " created test files");
Configuration localConf = this.getRaidNodeConfig(conf, local);
try {
cnode = RaidNode.createRaidNode(null, localConf);
TestRaidDfs.waitForDirRaided(LOG, fileSys, dirPath, destPath);
cnode.stop();
cnode.join();
long parityCRC = RaidDFSUtil.getCRC(fileSys, parityFile);
FileStatus parityStat = fileSys.getFileStatus(parityFile);
DistributedFileSystem dfs = (DistributedFileSystem) fileSys;
LocatedBlocks locs =
RaidDFSUtil.getBlockLocations(dfs, parityFile.toUri().getPath(), 0, parityStat.getLen());
String[] corruptFiles = DFSUtil.getCorruptFiles(dfs);
assertEquals("no corrupt files expected", 0, corruptFiles.length);
assertEquals(
"filesFixed() should return 0 before fixing files",
0,
cnode.blockIntegrityMonitor.getNumFilesFixed());
// Corrupt parity blocks for different stripes.
int[] corruptBlockIdxs = new int[] {0, 1, 2};
for (int idx : corruptBlockIdxs) corruptBlock(locs.get(idx).getBlock(), dfsCluster);
RaidDFSUtil.reportCorruptBlocks(dfs, parityFile, corruptBlockIdxs, 2 * blockSize);
corruptFiles = DFSUtil.getCorruptFiles(dfs);
assertEquals("file not corrupted", 1, corruptFiles.length);
assertEquals("wrong file corrupted", corruptFiles[0], parityFile.toUri().getPath());
cnode = RaidNode.createRaidNode(null, localConf);
long start = System.currentTimeMillis();
while (cnode.blockIntegrityMonitor.getNumFilesFixed() < 1
&& System.currentTimeMillis() - start < 120000) {
LOG.info("Test " + testName + " waiting for files to be fixed.");
Thread.sleep(3000);
}
TestBlockFixer.verifyMetrics(fileSys, cnode, local, 1L, corruptBlockIdxs.length);
long checkCRC = RaidDFSUtil.getCRC(fileSys, parityFile);
assertEquals("file not fixed", parityCRC, checkCRC);
} catch (Exception e) {
LOG.info("Test " + testName + " Exception " + e + StringUtils.stringifyException(e));
throw e;
} finally {
myTearDown();
}
LOG.info("Test " + testName + " completed.");
}
