public Map<String, Long> getRegionSizes(String tableName) {
Map<String, Long> regions = new HashMap<>();
try {
final Table table = connection.getTable(TableName.valueOf(tableName));
RegionLocator regionLocator = connection.getRegionLocator(table.getName());
List<HRegionLocation> tableRegionInfos = regionLocator.getAllRegionLocations();
Set<byte[]> tableRegions = new TreeSet<byte[]>(Bytes.BYTES_COMPARATOR);
for (HRegionLocation regionInfo : tableRegionInfos) {
tableRegions.add(regionInfo.getRegionInfo().getRegionName());
}
ClusterStatus clusterStatus = connection.getAdmin().getClusterStatus();
Collection<ServerName> servers = clusterStatus.getServers();
final long megaByte = 1024L * 1024L;
for (ServerName serverName : servers) {
ServerLoad serverLoad = clusterStatus.getLoad(serverName);
for (RegionLoad regionLoad : serverLoad.getRegionsLoad().values()) {
byte[] regionId = regionLoad.getName();
if (tableRegions.contains(regionId)) {
long regionSizeBytes = regionLoad.getStorefileSizeMB() * megaByte;
regions.put(regionLoad.getNameAsString(), regionSizeBytes);
}
}
}
} catch (IOException e) {
e.printStackTrace();
}
return regions;
}
private void runIncrementalPELoad(
Configuration conf,
HTableDescriptor tableDescriptor,
RegionLocator regionLocator,
Path outDir)
throws IOException, UnsupportedEncodingException, InterruptedException,
ClassNotFoundException {
Job job = new Job(conf, "testLocalMRIncrementalLoad");
job.setWorkingDirectory(util.getDataTestDirOnTestFS("runIncrementalPELoad"));
job.getConfiguration()
.setStrings(
"io.serializations",
conf.get("io.serializations"),
MutationSerialization.class.getName(),
ResultSerialization.class.getName(),
KeyValueSerialization.class.getName());
setupRandomGeneratorMapper(job);
HFileOutputFormat2.configureIncrementalLoad(job, tableDescriptor, regionLocator);
FileOutputFormat.setOutputPath(job, outDir);
assertFalse(util.getTestFileSystem().exists(outDir));
assertEquals(regionLocator.getAllRegionLocations().size(), job.getNumReduceTasks());
assertTrue(job.waitForCompletion(true));
}
protected void deleteRegion(Configuration conf, final Table tbl, byte[] startKey, byte[] endKey)
throws IOException {
LOG.info("Before delete:");
HTableDescriptor htd = tbl.getTableDescriptor();
dumpMeta(htd);
List<HRegionLocation> regions;
try (RegionLocator rl = connection.getRegionLocator(tbl.getName())) {
regions = rl.getAllRegionLocations();
}
for (HRegionLocation e : regions) {
HRegionInfo hri = e.getRegionInfo();
ServerName hsa = e.getServerName();
if (Bytes.compareTo(hri.getStartKey(), startKey) == 0
&& Bytes.compareTo(hri.getEndKey(), endKey) == 0) {
LOG.info("RegionName: " + hri.getRegionNameAsString());
byte[] deleteRow = hri.getRegionName();
TEST_UTIL.getHBaseAdmin().unassign(deleteRow, true);
LOG.info("deleting hdfs data: " + hri.toString() + hsa.toString());
Path rootDir = FSUtils.getRootDir(conf);
FileSystem fs = rootDir.getFileSystem(conf);
Path p = new Path(FSUtils.getTableDir(rootDir, htd.getTableName()), hri.getEncodedName());
fs.delete(p, true);
try (Table meta = this.connection.getTable(TableName.META_TABLE_NAME)) {
Delete delete = new Delete(deleteRow);
meta.delete(delete);
}
}
LOG.info(hri.toString() + hsa.toString());
}
TEST_UTIL.getMetaTableRows(htd.getTableName());
LOG.info("After delete:");
dumpMeta(htd);
}