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Apache Geode provides a database-like consistency model, reliable transaction processing and a shared-nothing architecture to maintain very low latency performance with high concurrency processing
/*
* Licensed to the Apache Software Foundation (ASF) under one or more contributor license
* agreements. See the NOTICE file distributed with this work for additional information regarding
* copyright ownership. The ASF licenses this file to You under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the License. You may obtain a
* copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under the License
* is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
* or implied. See the License for the specific language governing permissions and limitations under
* the License.
*/
package org.apache.geode.internal.cache.partitioned.rebalance;
import java.util.Map;
import java.util.Set;
import org.apache.logging.log4j.Logger;
import org.apache.geode.distributed.internal.membership.InternalDistributedMember;
import org.apache.geode.internal.cache.PartitionedRegion;
import org.apache.geode.internal.cache.control.PartitionRebalanceDetailsImpl;
import org.apache.geode.internal.cache.control.ResourceManagerStats;
import org.apache.geode.internal.logging.LogService;
public class BucketOperatorWrapper implements BucketOperator {
private static final Logger logger = LogService.getLogger();
private final BucketOperator delegate;
private final Set detailSet;
private final int regionCount;
private final ResourceManagerStats stats;
private final PartitionedRegion leaderRegion;
public BucketOperatorWrapper(BucketOperator delegate,
Set rebalanceDetails, ResourceManagerStats stats,
PartitionedRegion leaderRegion) {
this.delegate = delegate;
this.detailSet = rebalanceDetails;
this.regionCount = detailSet.size();
this.stats = stats;
this.leaderRegion = leaderRegion;
}
@Override
public boolean moveBucket(InternalDistributedMember sourceMember,
InternalDistributedMember targetMember, int id, Map colocatedRegionBytes) {
long start = System.nanoTime();
boolean result = false;
long elapsed = 0;
long totalBytes = 0;
if (stats != null) {
stats.startBucketTransfer(regionCount);
}
try {
result = delegate.moveBucket(sourceMember, targetMember, id, colocatedRegionBytes);
elapsed = System.nanoTime() - start;
if (result) {
if (logger.isDebugEnabled()) {
logger.debug("Rebalancing {} bucket {} moved from {} to {}", leaderRegion, id,
sourceMember, targetMember);
}
for (PartitionRebalanceDetailsImpl details : detailSet) {
String regionPath = details.getRegionPath();
Long regionBytes = colocatedRegionBytes.get(regionPath);
if (regionBytes != null) {
// only increment the elapsed time for the leader region
details.incTransfers(regionBytes.longValue(),
details.getRegion().equals(leaderRegion) ? elapsed : 0);
totalBytes += regionBytes.longValue();
}
}
} else {
if (logger.isDebugEnabled()) {
logger.debug("Rebalancing {} bucket {} moved failed from {} to {}", leaderRegion, id,
sourceMember, targetMember);
}
}
} finally {
if (stats != null) {
stats.endBucketTransfer(regionCount, result, totalBytes, elapsed);
}
}
return result;
}
@Override
public void createRedundantBucket(final InternalDistributedMember targetMember, final int i,
final Map colocatedRegionBytes, final Completion completion) {
if (stats != null) {
stats.startBucketCreate(regionCount);
}
final long start = System.nanoTime();
delegate.createRedundantBucket(targetMember, i, colocatedRegionBytes, new Completion() {
@Override
public void onSuccess() {
long totalBytes = 0;
long elapsed = System.nanoTime() - start;
if (logger.isDebugEnabled()) {
logger.debug("Rebalancing {} redundant bucket {} created on {}", leaderRegion, i,
targetMember);
}
for (PartitionRebalanceDetailsImpl details : detailSet) {
String regionPath = details.getRegionPath();
Long lrb = colocatedRegionBytes.get(regionPath);
if (lrb != null) { // region could have gone away - esp during shutdow
long regionBytes = lrb.longValue();
// Only add the elapsed time to the leader region.
details.incCreates(regionBytes, details.getRegion().equals(leaderRegion) ? elapsed : 0);
totalBytes += regionBytes;
}
}
if (stats != null) {
stats.endBucketCreate(regionCount, true, totalBytes, elapsed);
}
// invoke onSuccess on the received completion callback
completion.onSuccess();
}
@Override
public void onFailure() {
long elapsed = System.nanoTime() - start;
if (logger.isDebugEnabled()) {
logger.info("Rebalancing {} redundant bucket {} failed creation on {}", leaderRegion, i,
targetMember);
}
if (stats != null) {
stats.endBucketCreate(regionCount, false, 0, elapsed);
}
// invoke onFailure on the received completion callback
completion.onFailure();
}
});
}
@Override
public boolean removeBucket(InternalDistributedMember targetMember, int i,
Map colocatedRegionBytes) {
boolean result = false;
long elapsed = 0;
long totalBytes = 0;
if (stats != null) {
stats.startBucketRemove(regionCount);
}
try {
long start = System.nanoTime();
result = delegate.removeBucket(targetMember, i, colocatedRegionBytes);
elapsed = System.nanoTime() - start;
if (result) {
if (logger.isDebugEnabled()) {
logger.debug("Rebalancing {} redundant bucket {} removed from {}", leaderRegion, i,
targetMember);
}
for (PartitionRebalanceDetailsImpl details : detailSet) {
String regionPath = details.getRegionPath();
Long lrb = colocatedRegionBytes.get(regionPath);
if (lrb != null) { // region could have gone away - esp during shutdow
long regionBytes = lrb.longValue();
// Only add the elapsed time to the leader region.
details.incRemoves(regionBytes, details.getRegion().equals(leaderRegion) ? elapsed : 0);
totalBytes += regionBytes;
}
}
} else {
if (logger.isDebugEnabled()) {
logger.debug("Rebalancing {} redundant bucket {} failed removal o{}", leaderRegion, i,
targetMember);
}
}
} finally {
if (stats != null) {
stats.endBucketRemove(regionCount, result, totalBytes, elapsed);
}
}
return result;
}
@Override
public boolean movePrimary(InternalDistributedMember source, InternalDistributedMember target,
int bucketId) {
boolean result = false;
long elapsed = 0;
if (stats != null) {
stats.startPrimaryTransfer(regionCount);
}
try {
long start = System.nanoTime();
result = delegate.movePrimary(source, target, bucketId);
elapsed = System.nanoTime() - start;
if (result) {
if (logger.isDebugEnabled()) {
logger.debug("Rebalancing {} primary bucket {} moved from {} to {}", leaderRegion,
bucketId, source, target);
}
for (PartitionRebalanceDetailsImpl details : detailSet) {
details.incPrimaryTransfers(details.getRegion().equals(leaderRegion) ? elapsed : 0);
}
} else {
if (logger.isDebugEnabled()) {
logger.debug("Rebalancing {} primary bucket {} failed to move from {} to {}",
leaderRegion, bucketId, source, target);
}
}
} finally {
if (stats != null) {
stats.endPrimaryTransfer(regionCount, result, elapsed);
}
}
return result;
}
@Override
public void waitForOperations() {
delegate.waitForOperations();
}
public Set getDetailSet() {
return this.detailSet;
}
}