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HADOOP-17451. IOStatistics test failures in S3A code. (#2594) 

Caused by HADOOP-16380 and HADOOP-17271.

Fixes tests which fail intermittently based on configs and
in the case of the HugeFile tests, bulk runs with existing
FS instances meant statistic probes sometimes ended up probing those
of a previous FS.

Contributed by Steve Loughran.
This commit is contained in:
Steve Loughran 2021-01-12 17:25:14 +00:00 committed by GitHub
parent 0a6ddfa145
commit d3014e01f3
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GPG Key ID: 4AEE18F83AFDEB23
7 changed files with 80 additions and 62 deletions
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33
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/statistics/impl/StorageStatisticsFromIOStatistics.java
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@ -67,23 +67,46 @@ public class StorageStatisticsFromIOStatistics
public Iterator<LongStatistic> getLongStatistics() {
final Set<Map.Entry<String, Long>> counters = counters()
.entrySet();
return counters.stream().map(e ->
new StorageStatistics.LongStatistic(e.getKey(), e.getValue()))
.collect(Collectors.toSet()).iterator();
final Set<LongStatistic> statisticSet = counters.stream().map(
this::toLongStatistic)
.collect(Collectors.toSet());
// add the gauges
gauges().entrySet().forEach(entry ->
statisticSet.add(toLongStatistic(entry)));
return statisticSet.iterator();
}
/**
* Convert a counter/gauge entry to a long statistics.
* @param e entry
* @return statistic
*/
private LongStatistic toLongStatistic(final Map.Entry<String, Long> e) {
return new LongStatistic(e.getKey(), e.getValue());
}
private Map<String, Long> counters() {
return ioStatistics.counters();
}
private Map<String, Long> gauges() {
return ioStatistics.gauges();
}
@Override
public Long getLong(final String key) {
return counters().get(key);
Long l = counters().get(key);
if (l == null) {
l = gauges().get(key);
}
return l;
}
@Override
public boolean isTracked(final String key) {
return counters().containsKey(key);
return counters().containsKey(key)
|| gauges().containsKey(key);
}
@Override

38
hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/S3AInstrumentation.java
View File

@ -64,10 +64,8 @@ import org.apache.hadoop.metrics2.lib.MutableQuantiles;
import java.io.Closeable;
import java.net.URI;
import java.time.Duration;
import java.util.Arrays;
import java.util.EnumSet;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.UUID;
import java.util.concurrent.atomic.AtomicInteger;
@ -182,20 +180,6 @@ public class S3AInstrumentation implements Closeable, MetricsSource,
*/
private final IOStatisticsStore instanceIOStatistics;
/**
* Gauges to create.
* <p></p>
* All statistics which are not gauges or quantiles
* are registered as counters.
*/
private static final Statistic[] GAUGES_TO_CREATE = {
OBJECT_PUT_REQUESTS_ACTIVE,
OBJECT_PUT_BYTES_PENDING,
STREAM_WRITE_BLOCK_UPLOADS_ACTIVE,
STREAM_WRITE_BLOCK_UPLOADS_PENDING,
STREAM_WRITE_BLOCK_UPLOADS_BYTES_PENDING,
};
/**
* Construct the instrumentation for a filesystem.
* @param name URI of filesystem.
@ -211,10 +195,6 @@ public class S3AInstrumentation implements Closeable, MetricsSource,
// create the builder
IOStatisticsStoreBuilder storeBuilder = iostatisticsStore();
// add the gauges
List<Statistic> gauges = Arrays.asList(GAUGES_TO_CREATE);
gauges.forEach(this::gauge);
// declare all counter statistics
EnumSet.allOf(Statistic.class).stream()
.filter(statistic ->
@ -223,6 +203,14 @@ public class S3AInstrumentation implements Closeable, MetricsSource,
counter(stat);
storeBuilder.withCounters(stat.getSymbol());
});
// declare all gauge statistics
EnumSet.allOf(Statistic.class).stream()
.filter(statistic ->
statistic.getType() == StatisticTypeEnum.TYPE_GAUGE)
.forEach(stat -> {
gauge(stat);
storeBuilder.withGauges(stat.getSymbol());
});
// and durations
EnumSet.allOf(Statistic.class).stream()
@ -1352,15 +1340,13 @@ public class S3AInstrumentation implements Closeable, MetricsSource,
this.filesystemStatistics = filesystemStatistics;
IOStatisticsStore st = iostatisticsStore()
.withCounters(
StreamStatisticNames.STREAM_WRITE_BLOCK_UPLOADS,
STREAM_WRITE_BLOCK_UPLOADS.getSymbol(),
STREAM_WRITE_BYTES.getSymbol(),
STREAM_WRITE_EXCEPTIONS.getSymbol(),
StreamStatisticNames.STREAM_WRITE_BLOCK_UPLOADS_BYTES_PENDING,
STREAM_WRITE_TOTAL_TIME.getSymbol(),
STREAM_WRITE_EXCEPTIONS_COMPLETING_UPLOADS.getSymbol(),
STREAM_WRITE_QUEUE_DURATION.getSymbol(),
STREAM_WRITE_TOTAL_DATA.getSymbol(),
STREAM_WRITE_EXCEPTIONS.getSymbol(),
STREAM_WRITE_EXCEPTIONS_COMPLETING_UPLOADS.getSymbol())
STREAM_WRITE_TOTAL_TIME.getSymbol())
.withGauges(
STREAM_WRITE_BLOCK_UPLOADS_PENDING.getSymbol(),
STREAM_WRITE_BLOCK_UPLOADS_BYTES_PENDING.getSymbol())
@ -1470,7 +1456,7 @@ public class S3AInstrumentation implements Closeable, MetricsSource,
@Override
public void bytesTransferred(long byteCount) {
bytesUploaded.addAndGet(byteCount);
incrementGauge(STREAM_WRITE_BLOCK_UPLOADS_BYTES_PENDING, -byteCount);
incAllGauges(STREAM_WRITE_BLOCK_UPLOADS_BYTES_PENDING, -byteCount);
}
@Override

10
hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/impl/ITestPartialRenamesDeletes.java
View File

@ -76,6 +76,7 @@ import static org.apache.hadoop.fs.s3a.impl.MultiObjectDeleteSupport.removeUndel
import static org.apache.hadoop.fs.s3a.impl.MultiObjectDeleteSupport.toPathList;
import static org.apache.hadoop.fs.s3a.test.ExtraAssertions.assertFileCount;
import static org.apache.hadoop.fs.s3a.test.ExtraAssertions.extractCause;
import static org.apache.hadoop.fs.statistics.IOStatisticsLogging.ioStatisticsSourceToString;
import static org.apache.hadoop.io.IOUtils.cleanupWithLogger;
import static org.apache.hadoop.test.LambdaTestUtils.eval;
@ -683,7 +684,8 @@ public class ITestPartialRenamesDeletes extends AbstractS3ATestBase {
readOnlyFiles.size());
rejectionCount.assertDiffEquals("Wrong rejection count",
readOnlyFiles.size());
reset(rejectionCount, deleteVerbCount, deleteObjectCount);
reset(rejectionCount, deleteVerbCount, deleteObjectCount,
bulkDeleteVerbCount);
}
// all the files are still there? (avoid in scale test due to cost)
if (!scaleTest) {
@ -692,9 +694,13 @@ public class ITestPartialRenamesDeletes extends AbstractS3ATestBase {
describe("Trying to delete upper-level directory");
ex = expectDeleteForbidden(basePath);
String iostats = ioStatisticsSourceToString(roleFS);
if (multiDelete) {
// multi-delete status checks
deleteVerbCount.assertDiffEquals("Wrong delete count", 1);
deleteVerbCount.assertDiffEquals("Wrong delete request count", 0);
bulkDeleteVerbCount.assertDiffEquals(
"Wrong count of delete operations in " + iostats, 1);
MultiObjectDeleteException mde = extractCause(
MultiObjectDeleteException.class, ex);
List<MultiObjectDeleteSupport.KeyPath> undeletedKeyPaths =

5
hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/performance/AbstractS3ACostTest.java
View File

@ -475,7 +475,7 @@ public class AbstractS3ACostTest extends AbstractS3ATestBase {
/**
* Execute a closure expecting a specific number of HEAD/LIST calls
* on <i>raw</i> S3 stores only.
* on <i>raw</i> S3 stores only. The operation is always evaluated.
* @param cost expected cost
* @param eval closure to evaluate
* @param <T> return type of closure
@ -484,7 +484,8 @@ public class AbstractS3ACostTest extends AbstractS3ATestBase {
protected <T> T verifyRaw(
OperationCost cost,
Callable<T> eval) throws Exception {
return verifyMetrics(eval, whenRaw(cost));
return verifyMetrics(eval,
whenRaw(cost), OperationCostValidator.always());
}
/**

14
hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/performance/ITestS3ADeleteCost.java
View File

@ -121,17 +121,21 @@ public class ITestS3ADeleteCost extends AbstractS3ACostTest {
with(DIRECTORIES_DELETED, 0),
with(FILES_DELETED, 1),
// a single DELETE call is made to delete the object
with(OBJECT_DELETE_REQUEST, DELETE_OBJECT_REQUEST),
// keeping: create no parent dirs or delete parents
withWhenKeeping(DIRECTORIES_CREATED, 0),
withWhenKeeping(OBJECT_DELETE_OBJECTS, DELETE_OBJECT_REQUEST),
withWhenKeeping(OBJECT_BULK_DELETE_REQUEST, 0),
// deleting: create a parent and delete any of its parents
withWhenDeleting(DIRECTORIES_CREATED, 1),
// two objects will be deleted
withWhenDeleting(OBJECT_DELETE_OBJECTS,
DELETE_OBJECT_REQUEST
+ DELETE_MARKER_REQUEST)
// a bulk delete for all parents is issued.
// the number of objects in it depends on the depth of the tree;
// don't worry about that
withWhenDeleting(OBJECT_BULK_DELETE_REQUEST, DELETE_MARKER_REQUEST)
);
// there is an empty dir for a parent
S3AFileStatus status = verifyRawInnerGetFileStatus(dir, true,
StatusProbeEnum.ALL, GET_FILE_STATUS_ON_DIR);

29
hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/scale/AbstractSTestS3AHugeFiles.java
View File

@ -37,7 +37,6 @@ import org.apache.hadoop.fs.FSDataInputStream;
import org.apache.hadoop.fs.FSDataOutputStream;
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.fs.StorageStatistics;
import org.apache.hadoop.fs.contract.ContractTestUtils;
import org.apache.hadoop.fs.s3a.S3AFileSystem;
import org.apache.hadoop.fs.s3a.S3ATestUtils;
@ -49,10 +48,11 @@ import org.apache.hadoop.util.Progressable;
import static org.apache.hadoop.fs.contract.ContractTestUtils.*;
import static org.apache.hadoop.fs.s3a.Constants.*;
import static org.apache.hadoop.fs.s3a.S3ATestUtils.*;
import static org.apache.hadoop.fs.s3a.Statistic.STREAM_WRITE_BLOCK_UPLOADS_BYTES_PENDING;
import static org.apache.hadoop.fs.statistics.IOStatisticAssertions.lookupCounterStatistic;
import static org.apache.hadoop.fs.statistics.IOStatisticAssertions.verifyStatisticGaugeValue;
import static org.apache.hadoop.fs.statistics.IOStatisticsLogging.demandStringifyIOStatistics;
import static org.apache.hadoop.fs.statistics.IOStatisticsLogging.ioStatisticsSourceToString;
import static org.apache.hadoop.fs.statistics.IOStatisticsSupport.retrieveIOStatistics;
import static org.apache.hadoop.fs.statistics.IOStatisticsSupport.snapshotIOStatistics;
/**
* Scale test which creates a huge file.
@ -169,7 +169,8 @@ public abstract class AbstractSTestS3AHugeFiles extends S3AScaleTestBase {
// there's lots of logging here, so that a tail -f on the output log
// can give a view of what is happening.
S3AFileSystem fs = getFileSystem();
StorageStatistics storageStatistics = fs.getStorageStatistics();
IOStatistics iostats = fs.getIOStatistics();
String putRequests = Statistic.OBJECT_PUT_REQUESTS.getSymbol();
String putBytes = Statistic.OBJECT_PUT_BYTES.getSymbol();
Statistic putRequestsActive = Statistic.OBJECT_PUT_REQUESTS_ACTIVE;
@ -205,9 +206,9 @@ public abstract class AbstractSTestS3AHugeFiles extends S3AScaleTestBase {
percentage,
writtenMB,
filesizeMB,
storageStatistics.getLong(putBytes),
iostats.counters().get(putBytes),
gaugeValue(putBytesPending),
storageStatistics.getLong(putRequests),
iostats.counters().get(putRequests),
gaugeValue(putRequestsActive),
elapsedTime,
writtenMB / elapsedTime));
@ -227,27 +228,27 @@ public abstract class AbstractSTestS3AHugeFiles extends S3AScaleTestBase {
logFSState();
bandwidth(timer, filesize);
LOG.info("Statistics after stream closed: {}", streamStatistics);
IOStatistics iostats = snapshotIOStatistics(
retrieveIOStatistics(getFileSystem()));
LOG.info("IOStatistics after upload: {}",
demandStringifyIOStatistics(iostats));
long putRequestCount = storageStatistics.getLong(putRequests);
Long putByteCount = storageStatistics.getLong(putBytes);
long putRequestCount = lookupCounterStatistic(iostats, putRequests);
long putByteCount = lookupCounterStatistic(iostats, putBytes);
Assertions.assertThat(putRequestCount)
.describedAs("Put request count from filesystem stats %s",
iostats)
.isGreaterThan(0);
Assertions.assertThat(putByteCount)
.describedAs("putByteCount count from filesystem stats %s",
iostats)
.describedAs("%s count from filesystem stats %s",
putBytes, iostats)
.isGreaterThan(0);
LOG.info("PUT {} bytes in {} operations; {} MB/operation",
putByteCount, putRequestCount,
putByteCount / (putRequestCount * _1MB));
LOG.info("Time per PUT {} nS",
toHuman(timer.nanosPerOperation(putRequestCount)));
assertEquals("active put requests in \n" + fs,
0, gaugeValue(putRequestsActive));
verifyStatisticGaugeValue(iostats, putRequestsActive.getSymbol(), 0);
verifyStatisticGaugeValue(iostats,
STREAM_WRITE_BLOCK_UPLOADS_BYTES_PENDING.getSymbol(), 0);
progress.verifyNoFailures(
"Put file " + fileToCreate + " of size " + filesize);
if (streamStatistics != null) {

13
hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/scale/S3AScaleTestBase.java
View File

@ -23,11 +23,9 @@ import org.apache.hadoop.fs.FSDataInputStream;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.fs.s3a.AbstractS3ATestBase;
import org.apache.hadoop.fs.s3a.S3AInputStream;
import org.apache.hadoop.fs.s3a.S3AInstrumentation;
import org.apache.hadoop.fs.s3a.S3ATestConstants;
import org.apache.hadoop.fs.s3a.Statistic;
import org.apache.hadoop.fs.s3a.statistics.S3AInputStreamStatistics;
import org.apache.hadoop.metrics2.lib.MutableGaugeLong;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@ -35,6 +33,7 @@ import org.slf4j.LoggerFactory;
import java.io.InputStream;
import static org.apache.hadoop.fs.s3a.S3ATestUtils.*;
import static org.apache.hadoop.fs.statistics.IOStatisticAssertions.lookupGaugeStatistic;
/**
* Base class for scale tests; here is where the common scale configuration
@ -184,17 +183,15 @@ public class S3AScaleTestBase extends AbstractS3ATestBase {
}
/**
* Get the gauge value of a statistic. Raises an assertion if
* Get the gauge value of a statistic from the
* IOStatistics of the filesystem. Raises an assertion if
* there is no such gauge.
* @param statistic statistic to look up
* @return the value.
*/
public long gaugeValue(Statistic statistic) {
S3AInstrumentation instrumentation = getFileSystem().getInstrumentation();
MutableGaugeLong gauge = instrumentation.lookupGauge(statistic.getSymbol());
assertNotNull("No gauge " + statistic
+ " in " + instrumentation.dump("", " = ", "\n", true), gauge);
return gauge.value();
return lookupGaugeStatistic(getFileSystem().getIOStatistics(),
statistic.getSymbol());
}
/**