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default implementation for HBase index qps allocator (#685)

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* default implementation and configs for HBase index qps allocator

* Test for QPS allocator and address CR

* fix QPS allocator test
This commit is contained in:
Venkat
2019-05-24 18:43:46 -07:00
committed by vinoth chandar
parent 99b0c72aa6
commit f2d91a455e
7 changed files with 461 additions and 30 deletions
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118
hoodie-client/src/main/java/com/uber/hoodie/config/HoodieHBaseIndexConfig.java
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@@ -18,6 +18,7 @@
package com.uber.hoodie.config;
import com.uber.hoodie.index.hbase.DefaultHBaseQPSResourceAllocator;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
@@ -35,6 +36,12 @@ public class HoodieHBaseIndexConfig extends DefaultHoodieConfig {
* be honored for HBase Puts
*/
public static final String HBASE_PUT_BATCH_SIZE_PROP = "hoodie.index.hbase.put.batch.size";
/**
* Property to set which implementation of HBase QPS resource allocator to be used
*/
public static final String HBASE_INDEX_QPS_ALLOCATOR_CLASS = "hoodie.index.hbase.qps.allocator.class";
public static final String DEFAULT_HBASE_INDEX_QPS_ALLOCATOR_CLASS = DefaultHBaseQPSResourceAllocator.class.getName();
/**
* Property to set to enable auto computation of put batch size
*/
@@ -69,6 +76,34 @@ public class HoodieHBaseIndexConfig extends DefaultHoodieConfig {
*/
public static final float DEFAULT_HBASE_QPS_FRACTION = 0.5f;
/**
* Property to decide if HBASE_QPS_FRACTION_PROP is dynamically calculated based on volume
*/
public static final String HOODIE_INDEX_COMPUTE_QPS_DYNAMICALLY = "hoodie.index.hbase.dynamic_qps";
public static final boolean DEFAULT_HOODIE_INDEX_COMPUTE_QPS_DYNAMICALLY = false;
/**
* Min and Max for HBASE_QPS_FRACTION_PROP to stabilize skewed volume workloads
*/
public static final String HBASE_MIN_QPS_FRACTION_PROP = "hoodie.index.hbase.min.qps.fraction";
public static final String DEFAULT_HBASE_MIN_QPS_FRACTION_PROP = "0.002";
public static final String HBASE_MAX_QPS_FRACTION_PROP = "hoodie.index.hbase.max.qps.fraction";
public static final String DEFAULT_HBASE_MAX_QPS_FRACTION_PROP = "0.06";
/**
* Hoodie index desired puts operation time in seconds
*/
public static final String HOODIE_INDEX_DESIRED_PUTS_TIME_IN_SECS = "hoodie.index.hbase.desired_puts_time_in_secs";
public static final int DEFAULT_HOODIE_INDEX_DESIRED_PUTS_TIME_IN_SECS = 600;
public static final String HBASE_SLEEP_MS_PUT_BATCH_PROP = "hoodie.index.hbase.sleep.ms.for.put.batch";
public static final String HBASE_SLEEP_MS_GET_BATCH_PROP = "hoodie.index.hbase.sleep.ms.for.get.batch";
public static final String HOODIE_INDEX_HBASE_ZK_SESSION_TIMEOUT_MS = "hoodie.index.hbase.zk.session_timeout_ms";
public static final int DEFAULT_ZK_SESSION_TIMEOUT_MS = 60 * 1000;
public static final String HOODIE_INDEX_HBASE_ZK_CONNECTION_TIMEOUT_MS =
"hoodie.index.hbase.zk.connection_timeout_ms";
public static final int DEFAULT_ZK_CONNECTION_TIMEOUT_MS = 15 * 1000;
public static final String HBASE_ZK_PATH_QPS_ROOT = "hoodie.index.hbase.zkpath.qps_root";
public static final String DEFAULT_HBASE_ZK_PATH_QPS_ROOT = "/QPS_ROOT";
public HoodieHBaseIndexConfig(final Properties props) {
super(props);
}
@@ -111,26 +146,68 @@ public class HoodieHBaseIndexConfig extends DefaultHoodieConfig {
return this;
}
public HoodieHBaseIndexConfig.Builder hbaseIndexGetBatchSize(int getBatchSize) {
public Builder hbaseZkZnodeQPSPath(String zkZnodeQPSPath) {
props.setProperty(HBASE_ZK_PATH_QPS_ROOT, zkZnodeQPSPath);
return this;
}
public Builder hbaseIndexGetBatchSize(int getBatchSize) {
props.setProperty(HBASE_GET_BATCH_SIZE_PROP, String.valueOf(getBatchSize));
return this;
}
public HoodieHBaseIndexConfig.Builder hbaseIndexPutBatchSize(int putBatchSize) {
public Builder hbaseIndexPutBatchSize(int putBatchSize) {
props.setProperty(HBASE_PUT_BATCH_SIZE_PROP, String.valueOf(putBatchSize));
return this;
}
public HoodieHBaseIndexConfig.Builder hbaseIndexPutBatchSizeAutoCompute(
boolean putBatchSizeAutoCompute) {
props.setProperty(HBASE_PUT_BATCH_SIZE_AUTO_COMPUTE_PROP,
String.valueOf(putBatchSizeAutoCompute));
public Builder hbaseIndexPutBatchSizeAutoCompute(boolean putBatchSizeAutoCompute) {
props.setProperty(HBASE_PUT_BATCH_SIZE_AUTO_COMPUTE_PROP, String.valueOf(putBatchSizeAutoCompute));
return this;
}
public HoodieHBaseIndexConfig.Builder hbaseIndexQPSFraction(float qpsFraction) {
props.setProperty(HoodieHBaseIndexConfig.HBASE_QPS_FRACTION_PROP,
String.valueOf(qpsFraction));
public Builder hbaseIndexDesiredPutsTime(int desiredPutsTime) {
props.setProperty(HOODIE_INDEX_DESIRED_PUTS_TIME_IN_SECS, String.valueOf(desiredPutsTime));
return this;
}
public Builder hbaseIndexShouldComputeQPSDynamically(boolean shouldComputeQPsDynamically) {
props.setProperty(HOODIE_INDEX_COMPUTE_QPS_DYNAMICALLY, String.valueOf(shouldComputeQPsDynamically));
return this;
}
public Builder hbaseIndexQPSFraction(float qpsFraction) {
props.setProperty(HBASE_QPS_FRACTION_PROP, String.valueOf(qpsFraction));
return this;
}
public Builder hbaseIndexMinQPSFraction(float minQPSFraction) {
props.setProperty(HBASE_MIN_QPS_FRACTION_PROP, String.valueOf(minQPSFraction));
return this;
}
public Builder hbaseIndexMaxQPSFraction(float maxQPSFraction) {
props.setProperty(HBASE_MAX_QPS_FRACTION_PROP, String.valueOf(maxQPSFraction));
return this;
}
public Builder hbaseIndexSleepMsBetweenPutBatch(int sleepMsBetweenPutBatch) {
props.setProperty(HBASE_SLEEP_MS_PUT_BATCH_PROP, String.valueOf(sleepMsBetweenPutBatch));
return this;
}
public Builder withQPSResourceAllocatorType(String qpsResourceAllocatorClass) {
props.setProperty(HBASE_INDEX_QPS_ALLOCATOR_CLASS, qpsResourceAllocatorClass);
return this;
}
public Builder hbaseIndexZkSessionTimeout(int zkSessionTimeout) {
props.setProperty(HOODIE_INDEX_HBASE_ZK_SESSION_TIMEOUT_MS, String.valueOf(zkSessionTimeout));
return this;
}
public Builder hbaseIndexZkConnectionTimeout(int zkConnectionTimeout) {
props.setProperty(HOODIE_INDEX_HBASE_ZK_CONNECTION_TIMEOUT_MS, String.valueOf(zkConnectionTimeout));
return this;
}
@@ -166,14 +243,25 @@ public class HoodieHBaseIndexConfig extends DefaultHoodieConfig {
setDefaultOnCondition(props, !props.containsKey(HBASE_PUT_BATCH_SIZE_PROP),
HBASE_PUT_BATCH_SIZE_PROP, String.valueOf(DEFAULT_HBASE_BATCH_SIZE));
setDefaultOnCondition(props, !props.containsKey(HBASE_PUT_BATCH_SIZE_AUTO_COMPUTE_PROP),
HBASE_PUT_BATCH_SIZE_AUTO_COMPUTE_PROP,
String.valueOf(DEFAULT_HBASE_PUT_BATCH_SIZE_AUTO_COMPUTE));
HBASE_PUT_BATCH_SIZE_AUTO_COMPUTE_PROP, String.valueOf(DEFAULT_HBASE_PUT_BATCH_SIZE_AUTO_COMPUTE));
setDefaultOnCondition(props, !props.containsKey(HBASE_QPS_FRACTION_PROP),
HBASE_QPS_FRACTION_PROP, String.valueOf(DEFAULT_HBASE_QPS_FRACTION));
setDefaultOnCondition(props,
!props.containsKey(HBASE_MAX_QPS_PER_REGION_SERVER_PROP),
HBASE_MAX_QPS_PER_REGION_SERVER_PROP, String.valueOf(
DEFAULT_HBASE_MAX_QPS_PER_REGION_SERVER));
setDefaultOnCondition(props, !props.containsKey(HBASE_MAX_QPS_PER_REGION_SERVER_PROP),
HBASE_MAX_QPS_PER_REGION_SERVER_PROP, String.valueOf(DEFAULT_HBASE_MAX_QPS_PER_REGION_SERVER));
setDefaultOnCondition(props, !props.containsKey(HOODIE_INDEX_COMPUTE_QPS_DYNAMICALLY),
HOODIE_INDEX_COMPUTE_QPS_DYNAMICALLY, String.valueOf(DEFAULT_HOODIE_INDEX_COMPUTE_QPS_DYNAMICALLY));
setDefaultOnCondition(props, !props.containsKey(HBASE_INDEX_QPS_ALLOCATOR_CLASS),
HBASE_INDEX_QPS_ALLOCATOR_CLASS, String.valueOf(DEFAULT_HBASE_INDEX_QPS_ALLOCATOR_CLASS));
setDefaultOnCondition(props, !props.containsKey(HOODIE_INDEX_DESIRED_PUTS_TIME_IN_SECS),
HOODIE_INDEX_DESIRED_PUTS_TIME_IN_SECS, String.valueOf(DEFAULT_HOODIE_INDEX_DESIRED_PUTS_TIME_IN_SECS));
setDefaultOnCondition(props, !props.containsKey(HBASE_ZK_PATH_QPS_ROOT),
HBASE_ZK_PATH_QPS_ROOT, String.valueOf(DEFAULT_HBASE_ZK_PATH_QPS_ROOT));
setDefaultOnCondition(props, !props.containsKey(HOODIE_INDEX_HBASE_ZK_SESSION_TIMEOUT_MS),
HOODIE_INDEX_HBASE_ZK_SESSION_TIMEOUT_MS, String.valueOf(DEFAULT_ZK_SESSION_TIMEOUT_MS));
setDefaultOnCondition(props, !props.containsKey(HOODIE_INDEX_HBASE_ZK_CONNECTION_TIMEOUT_MS),
HOODIE_INDEX_HBASE_ZK_CONNECTION_TIMEOUT_MS, String.valueOf(DEFAULT_ZK_CONNECTION_TIMEOUT_MS));
setDefaultOnCondition(props, !props.containsKey(HBASE_INDEX_QPS_ALLOCATOR_CLASS),
HBASE_INDEX_QPS_ALLOCATOR_CLASS, String.valueOf(DEFAULT_HBASE_INDEX_QPS_ALLOCATOR_CLASS));
return config;
}

32
hoodie-client/src/main/java/com/uber/hoodie/config/HoodieWriteConfig.java
View File

@@ -315,6 +315,30 @@ public class HoodieWriteConfig extends DefaultHoodieConfig {
return Boolean.valueOf(props.getProperty(HoodieHBaseIndexConfig.HBASE_PUT_BATCH_SIZE_AUTO_COMPUTE_PROP));
}
public String getHBaseQPSResourceAllocatorClass() {
return props.getProperty(HoodieHBaseIndexConfig.HBASE_INDEX_QPS_ALLOCATOR_CLASS);
}
public String getHBaseQPSZKnodePath() {
return props.getProperty(HoodieHBaseIndexConfig.HBASE_ZK_PATH_QPS_ROOT);
}
public String getHBaseZkZnodeSessionTimeout() {
return props.getProperty(HoodieHBaseIndexConfig.HOODIE_INDEX_HBASE_ZK_SESSION_TIMEOUT_MS);
}
public String getHBaseZkZnodeConnectionTimeout() {
return props.getProperty(HoodieHBaseIndexConfig.HOODIE_INDEX_HBASE_ZK_CONNECTION_TIMEOUT_MS);
}
public boolean getHBaseIndexShouldComputeQPSDynamically() {
return Boolean.valueOf(props.getProperty(HoodieHBaseIndexConfig.HOODIE_INDEX_COMPUTE_QPS_DYNAMICALLY));
}
public int getHBaseIndexDesiredPutsTime() {
return Integer.valueOf(props.getProperty(HoodieHBaseIndexConfig.HOODIE_INDEX_DESIRED_PUTS_TIME_IN_SECS));
}
/**
* Fraction of the global share of QPS that should be allocated to this job.
* Let's say there are 3 jobs which have input size in terms of number of rows
@@ -325,6 +349,14 @@ public class HoodieWriteConfig extends DefaultHoodieConfig {
return Float.parseFloat(props.getProperty(HoodieHBaseIndexConfig.HBASE_QPS_FRACTION_PROP));
}
public float getHBaseIndexMinQPSFraction() {
return Float.parseFloat(props.getProperty(HoodieHBaseIndexConfig.HBASE_MIN_QPS_FRACTION_PROP));
}
public float getHBaseIndexMaxQPSFraction() {
return Float.parseFloat(props.getProperty(HoodieHBaseIndexConfig.HBASE_MAX_QPS_FRACTION_PROP));
}
/**
* This should be same across various jobs. This is intended to limit the aggregate
* QPS generated across various Hoodie jobs to an Hbase Region Server

52
hoodie-client/src/main/java/com/uber/hoodie/index/hbase/DefaultHBaseQPSResourceAllocator.java Normal file
View File

@@ -0,0 +1,52 @@
/*
* Copyright (c) 2019 Uber Technologies, Inc. (hoodie-dev-group@uber.com)
*
* Licensed 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 com.uber.hoodie.index.hbase;
import com.uber.hoodie.config.HoodieWriteConfig;
import org.apache.log4j.LogManager;
import org.apache.log4j.Logger;
public class DefaultHBaseQPSResourceAllocator implements HBaseIndexQPSResourceAllocator {
private HoodieWriteConfig hoodieWriteConfig;
private static Logger logger = LogManager.getLogger(DefaultHBaseQPSResourceAllocator.class);
public DefaultHBaseQPSResourceAllocator(HoodieWriteConfig hoodieWriteConfig) {
this.hoodieWriteConfig = hoodieWriteConfig;
}
@Override
public float calculateQPSFractionForPutsTime(final long numPuts, final int numRegionServers) {
// Just return the configured qps_fraction without calculating it runtime
return hoodieWriteConfig.getHbaseIndexQPSFraction();
}
@Override
public float acquireQPSResources(final float desiredQPSFraction, final long numPuts) {
// Return the requested QPSFraction in this default implementation
return desiredQPSFraction;
}
@Override
public void releaseQPSResources() {
// Do nothing, as there are no resources locked in default implementation
logger.info(String.format("Release QPS resources called for %s with default implementation, do nothing",
this.hoodieWriteConfig.getHbaseTableName()));
}
}

74
hoodie-client/src/main/java/com/uber/hoodie/index/hbase/HBaseIndex.java
View File

@@ -28,6 +28,7 @@ import com.uber.hoodie.common.model.HoodieRecordPayload;
import com.uber.hoodie.common.table.HoodieTableMetaClient;
import com.uber.hoodie.common.table.HoodieTimeline;
import com.uber.hoodie.common.table.timeline.HoodieInstant;
import com.uber.hoodie.common.util.ReflectionUtils;
import com.uber.hoodie.config.HoodieIndexConfig;
import com.uber.hoodie.config.HoodieWriteConfig;
import com.uber.hoodie.exception.HoodieDependentSystemUnavailableException;
@@ -60,6 +61,8 @@ import org.apache.spark.api.java.JavaRDD;
import org.apache.spark.api.java.JavaSparkContext;
import org.apache.spark.api.java.function.Function2;
import scala.Tuple2;
/**
* Hoodie Index implementation backed by HBase
*/
@@ -99,10 +102,24 @@ public class HBaseIndex<T extends HoodieRecordPayload> extends HoodieIndex<T> {
}
private void init(HoodieWriteConfig config) {
multiPutBatchSize = config.getHbaseIndexGetBatchSize();
qpsFraction = config.getHbaseIndexQPSFraction();
maxQpsPerRegionServer = config.getHbaseIndexMaxQPSPerRegionServer();
putBatchSizeCalculator = new HbasePutBatchSizeCalculator();
this.multiPutBatchSize = config.getHbaseIndexGetBatchSize();
this.qpsFraction = config.getHbaseIndexQPSFraction();
this.maxQpsPerRegionServer = config.getHbaseIndexMaxQPSPerRegionServer();
this.putBatchSizeCalculator = new HbasePutBatchSizeCalculator();
}
@VisibleForTesting
public HBaseIndexQPSResourceAllocator createQPSResourceAllocator(HoodieWriteConfig config) {
try {
logger.info("createQPSResourceAllocator :" + config.getHBaseQPSResourceAllocatorClass());
final HBaseIndexQPSResourceAllocator resourceAllocator =
(HBaseIndexQPSResourceAllocator) ReflectionUtils.loadClass(
config.getHBaseQPSResourceAllocatorClass(), config);
return resourceAllocator;
} catch (Exception e) {
logger.warn("error while instantiating HBaseIndexQPSResourceAllocator", e);
}
return new DefaultHBaseQPSResourceAllocator(config);
}
@Override
@@ -351,12 +368,27 @@ public class HBaseIndex<T extends HoodieRecordPayload> extends HoodieIndex<T> {
@Override
public JavaRDD<WriteStatus> updateLocation(JavaRDD<WriteStatus> writeStatusRDD, JavaSparkContext jsc,
HoodieTable<T> hoodieTable) {
setPutBatchSize(writeStatusRDD, jsc);
return writeStatusRDD.mapPartitionsWithIndex(updateLocationFunction(), true);
final HBaseIndexQPSResourceAllocator hBaseIndexQPSResourceAllocator = createQPSResourceAllocator(this.config);
JavaRDD<WriteStatus> writeStatusResultRDD;
setPutBatchSize(writeStatusRDD, hBaseIndexQPSResourceAllocator, jsc);
logger.info("multiPutBatchSize: before puts" + multiPutBatchSize);
JavaRDD<WriteStatus> writeStatusJavaRDD = writeStatusRDD.mapPartitionsWithIndex(
updateLocationFunction(), true);
// Forcing a spark action so HBase puts are triggered before releasing resources
if (this.config.getHBaseIndexShouldComputeQPSDynamically()) {
logger.info("writestatus count: " + writeStatusJavaRDD.count());
writeStatusResultRDD = writeStatusRDD;
} else {
writeStatusResultRDD = writeStatusJavaRDD;
}
// Release QPS resources as HBAse puts are done at this point
hBaseIndexQPSResourceAllocator.releaseQPSResources();
return writeStatusResultRDD;
}
private void setPutBatchSize(JavaRDD<WriteStatus> writeStatusRDD,
final JavaSparkContext jsc) {
HBaseIndexQPSResourceAllocator hBaseIndexQPSResourceAllocator,
final JavaSparkContext jsc) {
if (config.getHbaseIndexPutBatchSizeAutoCompute()) {
SparkConf conf = jsc.getConf();
int maxExecutors = conf.getInt(DEFAULT_SPARK_EXECUTOR_INSTANCES_CONFIG_NAME, 1);
@@ -370,22 +402,36 @@ public class HBaseIndex<T extends HoodieRecordPayload> extends HoodieIndex<T> {
If a writeStatus has any insert, it implies that the corresponding task contacts HBase for
doing puts, since we only do puts for inserts from HBaseIndex.
*/
int hbasePutAccessParallelism = getHBasePutAccessParallelism(writeStatusRDD);
final Tuple2<Long, Integer> numPutsParallelismTuple = getHBasePutAccessParallelism(writeStatusRDD);
final long numPuts = numPutsParallelismTuple._1;
final int hbasePutsParallelism = numPutsParallelismTuple._2;
this.numRegionServersForTable = getNumRegionServersAliveForTable();
final float desiredQPSFraction = hBaseIndexQPSResourceAllocator
.calculateQPSFractionForPutsTime(numPuts, this.numRegionServersForTable);
logger.info("Desired QPSFraction :" + desiredQPSFraction);
logger.info("Number HBase puts :" + numPuts);
logger.info("Hbase Puts Parallelism :" + hbasePutsParallelism);
final float availableQpsFraction = hBaseIndexQPSResourceAllocator
.acquireQPSResources(desiredQPSFraction, numPuts);
logger.info("Allocated QPS Fraction :" + availableQpsFraction);
multiPutBatchSize = putBatchSizeCalculator
.getBatchSize(
getNumRegionServersAliveForTable(),
numRegionServersForTable,
maxQpsPerRegionServer,
hbasePutAccessParallelism,
hbasePutsParallelism,
maxExecutors,
SLEEP_TIME_MILLISECONDS,
qpsFraction);
availableQpsFraction);
logger.info("multiPutBatchSize :" + multiPutBatchSize);
}
}
@VisibleForTesting
public int getHBasePutAccessParallelism(final JavaRDD<WriteStatus> writeStatusRDD) {
return Math.toIntExact(Math.max(writeStatusRDD
.filter(w -> w.getStat().getNumInserts() > 0).count(), 1));
public Tuple2<Long, Integer> getHBasePutAccessParallelism(final JavaRDD<WriteStatus> writeStatusRDD) {
final JavaPairRDD<Long, Integer> insertOnlyWriteStatusRDD =
writeStatusRDD.filter(w -> w.getStat().getNumInserts() > 0)
.mapToPair(w -> new Tuple2<>(w.getStat().getNumInserts(), 1));
return insertOnlyWriteStatusRDD.reduce((w, c) -> new Tuple2<>(w._1 + c._1, w._2 + c._2));
}
public static class HbasePutBatchSizeCalculator implements Serializable {

51
hoodie-client/src/main/java/com/uber/hoodie/index/hbase/HBaseIndexQPSResourceAllocator.java Normal file
View File

@@ -0,0 +1,51 @@
/*
* Copyright (c) 2019 Uber Technologies, Inc. (hoodie-dev-group@uber.com)
*
* Licensed 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 com.uber.hoodie.index.hbase;
import java.io.Serializable;
/**
* <code>HBaseIndexQPSResourceAllocator</code> defines methods to manage resource allocation for HBase index operations
*/
public interface HBaseIndexQPSResourceAllocator extends Serializable {
/**
* This method returns the QPS Fraction value that needs to be acquired such that the respective
* HBase index operation can be completed in desiredPutsTime.
*
* @param numPuts Number of inserts to be written to HBase index
* @param desiredPutsTimeInSecs Total expected time for the HBase inserts operation
* @return QPS fraction that needs to be acquired.
*/
float calculateQPSFractionForPutsTime(final long numPuts, final int desiredPutsTimeInSecs);
/**
* This method acquires the requested QPS Fraction against HBase cluster for index operation.
*
* @param desiredQPSFraction QPS fraction that needs to be requested and acquired
* @param numPuts Number of inserts to be written to HBase index
* @return value of the acquired QPS Fraction.
*/
float acquireQPSResources(final float desiredQPSFraction, final long numPuts);
/**
* This method releases the acquired QPS Fraction
*/
void releaseQPSResources();
}