下面列出了怎么用org.apache.hadoop.hbase.RegionLoad的API类实例代码及写法,或者点击链接到github查看源代码。
private void init(RegionLocator regionLocator, Admin admin)
throws IOException {
if (!enabled(admin.getConfiguration())) {
LOG.info("Region size calculation disabled.");
return;
}
LOG.info("Calculating region sizes for table \"" + regionLocator.getName() + "\".");
//get regions for table
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 = admin.getClusterStatus();
Collection<ServerName> servers = clusterStatus.getServers();
final long megaByte = 1024L * 1024L;
//iterate all cluster regions, filter regions from our table and compute their size
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() + regionLoad.getMemStoreSizeMB()) * megaByte;
sizeMap.put(regionId, regionSizeBytes);
if (LOG.isDebugEnabled()) {
LOG.debug("Region " + regionLoad.getNameAsString() + " has size " + regionSizeBytes);
}
}
}
}
LOG.debug("Region sizes calculated");
}
/**
* Computes size of each region for table and given column families.
* */
public HBaseRegionSizeCalculator(String tableName, Connection hbaseConnection) throws IOException {
Table table = null;
Admin admin = null;
try {
table = hbaseConnection.getTable(TableName.valueOf(tableName));
admin = hbaseConnection.getAdmin();
if (!enabled(table.getConfiguration())) {
logger.info("Region size calculation disabled.");
return;
}
logger.info("Calculating region sizes for table \"" + table.getName() + "\".");
// Get regions for table.
RegionLocator regionLocator = hbaseConnection.getRegionLocator(table.getName());
List<HRegionLocation> regionLocationList = regionLocator.getAllRegionLocations();
Set<byte[]> tableRegions = new TreeSet<byte[]>(Bytes.BYTES_COMPARATOR);
for (HRegionLocation hRegionLocation : regionLocationList) {
tableRegions.add(hRegionLocation.getRegionInfo().getRegionName());
}
ClusterStatus clusterStatus = admin.getClusterStatus();
Collection<ServerName> servers = clusterStatus.getServers();
final long megaByte = 1024L * 1024L;
// Iterate all cluster regions, filter regions from our table and
// compute their size.
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;
sizeMap.put(regionId, regionSizeBytes);
countMap.put(regionId, new Pair<>(regionLoad.getStores(), regionLoad.getStorefiles()));
if (regionSizeBytes == 0L) {
logger.info("Region " + regionLoad.getNameAsString() + " has size " + regionSizeBytes);
}
}
}
}
} finally {
IOUtils.closeQuietly(admin);
}
}
/**
* Computes size of each region for table and given column families.
* */
public HBaseRegionSizeCalculator(String tableName, Connection hbaseConnection) throws IOException {
Table table = null;
Admin admin = null;
try {
table = hbaseConnection.getTable(TableName.valueOf(tableName));
admin = hbaseConnection.getAdmin();
if (!enabled(table.getConfiguration())) {
logger.info("Region size calculation disabled.");
return;
}
logger.info("Calculating region sizes for table \"" + table.getName() + "\".");
// Get regions for table.
RegionLocator regionLocator = hbaseConnection.getRegionLocator(table.getName());
List<HRegionLocation> regionLocationList = regionLocator.getAllRegionLocations();
Set<byte[]> tableRegions = new TreeSet<byte[]>(Bytes.BYTES_COMPARATOR);
for (HRegionLocation hRegionLocation : regionLocationList) {
tableRegions.add(hRegionLocation.getRegionInfo().getRegionName());
}
ClusterStatus clusterStatus = admin.getClusterStatus();
Collection<ServerName> servers = clusterStatus.getServers();
final long megaByte = 1024L * 1024L;
// Iterate all cluster regions, filter regions from our table and
// compute their size.
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;
sizeMap.put(regionId, regionSizeBytes);
countMap.put(regionId, new Pair<>(regionLoad.getStores(), regionLoad.getStorefiles()));
if (regionSizeBytes == 0L) {
logger.info("Region " + regionLoad.getNameAsString() + " has size " + regionSizeBytes);
}
}
}
}
} finally {
IOUtils.closeQuietly(admin);
}
}
public static String getNameSpace(RegionLoad region) {
String tableName;
if (isEmpty(tableName = getTableName(region))) return null;
return tableName.split(COLON)[0];
}
public static String getSingleTableName(RegionLoad region) {
String tableName;
if (isEmpty(tableName = getTableName(region))) return null;
return tableName.split(COLON)[1];
}
public static String getTableName(RegionLoad region) {
if (region == null) return null;
// return extractTableName(HRegionInfo.encodeRegionName(region.getName()));
return extractTableName(region.getNameAsString());
}
/** Constructor for unit testing */
HBaseRegionSizeCalculator(HTable table, HBaseAdmin hBaseAdmin) throws IOException {
try {
if (!enabled(table.getConfiguration())) {
logger.info("Region size calculation disabled.");
return;
}
logger.info("Calculating region sizes for table \"" + new String(table.getTableName()) + "\".");
// Get regions for table.
Set<HRegionInfo> tableRegionInfos = table.getRegionLocations().keySet();
Set<byte[]> tableRegions = new TreeSet<byte[]>(Bytes.BYTES_COMPARATOR);
for (HRegionInfo regionInfo : tableRegionInfos) {
tableRegions.add(regionInfo.getRegionName());
}
ClusterStatus clusterStatus = hBaseAdmin.getClusterStatus();
Collection<ServerName> servers = clusterStatus.getServers();
final long megaByte = 1024L * 1024L;
// Iterate all cluster regions, filter regions from our table and
// compute their size.
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;
sizeMap.put(regionId, regionSizeBytes);
// logger.info("Region " + regionLoad.getNameAsString()
// + " has size " + regionSizeBytes);
}
}
}
} finally {
hBaseAdmin.close();
}
}