use of io.datarouter.client.hbase.cluster.DrServerList in project datarouter by hotpads.
the class HBaseRegionBalancerJob method balanceClient.
// return true if completed balancing
private boolean balanceClient(TaskTracker tracker, ClientId clientId) {
logger.warn("calculating region movements for client {}", clientId.getName());
Admin admin = hBaseClientManager.getAdmin(clientId);
List<HBaseRegionMovement> movements = new ArrayList<>();
DrServerList serverList = new DrServerList(admin);
List<String> tableNames = nodes.getTableNamesForClient(clientId.getName());
Collections.sort(tableNames);
int tableCounter = 0;
for (String tableName : tableNames) {
if (tracker.shouldStop()) {
return false;
}
++tableCounter;
PhaseTimer timer = new PhaseTimer("generating movements for table " + tableName + " #" + tableCounter + "/" + tableNames.size());
List<HBaseRegionMovement> tableMovements = new ArrayList<>();
PhysicalNode<?, ?, ?> physicalNodeForTable = nodes.getPhysicalNodeForClientAndTable(clientId.getName(), tableName);
BaseHBaseRegionBalancer balancer = balancerFactory.getBalancerForTable(clientId, tableName);
DrRegionList regionList;
try {
regionList = drRegionListFactory.make(clientId, serverList, tableName, physicalNodeForTable, balancer);
} catch (Exception e) {
logger.error("skipping table " + tableName, e);
continue;
}
for (DrRegionInfo<?> region : regionList.getRegions()) {
if (region.isNotOnAnyServer()) {
logger.warn("region {} is not currently hosted, so not attempting to move it", region.getRegion().getRegionNameAsString());
continue;
}
if (region.isOnCorrectServer()) {
continue;
}
HBaseRegionMovement movement = new HBaseRegionMovement(tableName, region.getRegion().getEncodedName(), region.getHBaseServerName(), region.getBalancerDestinationHBaseServerName());
tableMovements.add(movement);
}
timer.add("generated " + tableMovements.size() + " movements");
logger.warn(timer.toString());
movements.addAll(tableMovements);
}
// we calculated all the movements. now move them
long iterationStartTimeMs = System.currentTimeMillis();
Map<ServerName, List<HBaseRegionMovement>> movementsByCurrentServer = HBaseRegionMovement.getByCurrentServer(movements);
int clusterMovementCounter = 0;
logger.warn("processing {} total movements", movements.size());
for (DrServerInfo serverInfo : serverList.getServersSortedByDescendingLoad()) {
List<HBaseRegionMovement> movementsForServer = movementsByCurrentServer.getOrDefault(serverInfo.getServerName(), List.of());
logger.warn("expecting {} movements for server {}", movementsForServer.size(), serverInfo.getServerName());
}
for (DrServerInfo serverInfo : serverList.getServersSortedByDescendingLoad()) {
List<HBaseRegionMovement> movementsForServer = movementsByCurrentServer.getOrDefault(serverInfo.getServerName(), List.of());
logger.warn("processing {} movements for server {}", movementsForServer.size(), serverInfo.getServerName());
int serverMovementCounter = 0;
for (HBaseRegionMovement movement : movementsForServer) {
++clusterMovementCounter;
++serverMovementCounter;
logger.warn("moving region {}/{} ({}/{}): {}", serverMovementCounter, movementsForServer.size(), clusterMovementCounter, movements.size(), movement);
try {
admin.move(movement.getRegionNameBytes(), movement.getDestinationServerNameBytes());
} catch (Exception ex) {
// in 0.94, this is UndeclaredThrowableException wrapping other Exceptions
logger.error("exception moving region, skipping", ex);
}
ThreadTool.sleepUnchecked(hbaseSettings.getSleepBetweenRegionMovementMs());
if (tracker.increment().shouldStop()) {
return false;
}
if (System.currentTimeMillis() - iterationStartTimeMs > RECALCULATE_AFTER_MS) {
logger.warn("suspending to check for new servers", RECALCULATE_AFTER_MS);
return false;
}
}
logger.warn("processed {} movements for server {}", serverMovementCounter, serverInfo.getServerName());
}
return true;
}
use of io.datarouter.client.hbase.cluster.DrServerList in project datarouter by hotpads.
the class HBaseHandler method initialize.
/*---------------------------- useful methods ----------------------------*/
private void initialize() {
mav = new Mav();
encodedRegionNameStrings = RequestTool.getCheckedBoxes(request, PARAM_PREFIX_encodedRegionName_);
numRegions = encodedRegionNameStrings.size();
datarouterWebRequestParams = datarouterWebRequestParamsFactory.new DatarouterWebRequestParams<>(params, getClientType());
mav.put("clientType", datarouterWebRequestParams.getClientType().getName());
drServerList = SingletonSupplier.of(() -> new DrServerList(hBaseClientManager.getAdmin(datarouterWebRequestParams.getClientId())));
regionList = SingletonSupplier.of(() -> drRegionListFactory.make(datarouterWebRequestParams.getClientId(), drServerList.get(), datarouterWebRequestParams.getTableName(), datarouterWebRequestParams.getPhysicalNode(), balancerFactory.getBalancerForTable(datarouterWebRequestParams.getClientId(), datarouterWebRequestParams.getTableName())));
}
use of io.datarouter.client.hbase.cluster.DrServerList in project datarouter by hotpads.
the class HBaseCompactionJob method run.
@Override
public void run(TaskTracker tracker) {
for (ClientId clientId : compactionInfo.getManagedClientIds()) {
Admin admin = hBaseClientManager.getAdmin(clientId);
DrServerList servers = new DrServerList(admin);
List<String> tableNames = nodes.getTableNamesForClient(clientId.getName());
for (String tableName : tableNames) {
if (tracker.heartbeat(numRegions.sum()).shouldStop()) {
return;
}
try {
compactTable(tracker, admin, servers, clientId, tableName);
} catch (Exception e) {
logger.warn("error compacting {}.{}", clientId, tableName, e);
}
}
}
logger.warn("numTables={}, numRegions={}, numMissingLoad={}, numAlreadyLocal={}, numTriggered={}", numTables, numRegions, numMissingLoad, numAlreadyLocal, numTriggered);
}
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