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HBASE-18762 Canary sink type cast error 

Changed the type hierarchy of Canary sinks to reduce confusion and avoid
cast errors.

Testing Done: Ran the TestCanaryTool.java test suite and confirmed that
the working is correct.

Signed-off-by: Andrew Purtell <apurtell@apache.org>
Amending-Author: Andrew Purtell <apurtell@apache.org>
This commit is contained in:
Chinmay Kulkarni 2017-09-15 16:35:17 -07:00 committed by Andrew Purtell
parent d6d62a5467
commit 414e0ca292
1 changed files with 102 additions and 91 deletions
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193
hbase-server/src/main/java/org/apache/hadoop/hbase/tool/Canary.java
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@ -114,23 +114,12 @@ public final class Canary implements Tool {
public interface Sink {
public long getReadFailureCount();
public long incReadFailureCount();
public void publishReadFailure(ServerName serverName, HRegionInfo region, Exception e);
public void publishReadFailure(ServerName serverName, HRegionInfo region, HColumnDescriptor column, Exception e);
public void updateReadFailedHostList(HRegionInfo region, String serverName);
public Map<String,String> getReadFailures();
public void publishReadTiming(ServerName serverName, HRegionInfo region, HColumnDescriptor column, long msTime);
public void updateReadFailures(String regionName, String serverName);
public long getWriteFailureCount();
public void publishWriteFailure(ServerName serverName, HRegionInfo region, Exception e);
public void publishWriteFailure(ServerName serverName, HRegionInfo region, HColumnDescriptor column, Exception e);
public void publishWriteTiming(ServerName serverName, HRegionInfo region, HColumnDescriptor column, long msTime);
public void updateWriteFailedHostList(HRegionInfo region, String serverName);
public long incWriteFailureCount();
public Map<String,String> getWriteFailures();
}
// new extended sink for output regionserver mode info
// do not change the Sink interface directly due to maintaining the API
public interface ExtendedSink extends Sink {
public void publishReadFailure(String table, String server);
public void publishReadTiming(String table, String server, long msTime);
public void updateWriteFailures(String regionName, String serverName);
}
// Simple implementation of canary sink that allows to plot on
@ -152,38 +141,14 @@ public final class Canary implements Tool {
return readFailureCount.incrementAndGet();
}
@Override
public void publishReadFailure(ServerName serverName, HRegionInfo region, Exception e) {
readFailureCount.incrementAndGet();
LOG.error(String.format("read from region %s on regionserver %s failed", region.getRegionNameAsString(), serverName), e);
}
@Override
public void publishReadFailure(ServerName serverName, HRegionInfo region, HColumnDescriptor column, Exception e) {
readFailureCount.incrementAndGet();
LOG.error(String.format("read from region %s on regionserver %s column family %s failed",
region.getRegionNameAsString(), serverName, column.getNameAsString()), e);
}
@Override
public void updateReadFailedHostList(HRegionInfo region, String serverName) {
readFailures.put(region.getRegionNameAsString(), serverName);
}
@Override
public void publishReadTiming(ServerName serverName, HRegionInfo region, HColumnDescriptor column, long msTime) {
LOG.info(String.format("read from region %s on regionserver %s column family %s in %dms",
region.getRegionNameAsString(), serverName, column.getNameAsString(), msTime));
}
@Override
public Map<String, String> getReadFailures() {
return readFailures;
}
@Override
public Map<String, String> getWriteFailures() {
return writeFailures;
public void updateReadFailures(String regionName, String serverName) {
readFailures.put(regionName, serverName);
}
@Override
@ -192,53 +157,42 @@ public final class Canary implements Tool {
}
@Override
public void publishWriteFailure(ServerName serverName, HRegionInfo region, Exception e) {
writeFailureCount.incrementAndGet();
LOG.error(String.format("write to region %s on regionserver %s failed", region.getRegionNameAsString(), serverName), e);
public long incWriteFailureCount() {
return writeFailureCount.incrementAndGet();
}
@Override
public void publishWriteFailure(ServerName serverName, HRegionInfo region, HColumnDescriptor column, Exception e) {
writeFailureCount.incrementAndGet();
LOG.error(String.format("write to region %s on regionserver %s column family %s failed",
region.getRegionNameAsString(), serverName, column.getNameAsString()), e);
public Map<String, String> getWriteFailures() {
return writeFailures;
}
@Override
public void publishWriteTiming(ServerName serverName, HRegionInfo region, HColumnDescriptor column, long msTime) {
LOG.info(String.format("write to region %s on regionserver %s column family %s in %dms",
region.getRegionNameAsString(), serverName, column.getNameAsString(), msTime));
public void updateWriteFailures(String regionName, String serverName) {
writeFailures.put(regionName, serverName);
}
@Override
public void updateWriteFailedHostList(HRegionInfo region, String serverName) {
writeFailures.put(region.getRegionNameAsString(), serverName);
}
}
// a ExtendedSink implementation
public static class RegionServerStdOutSink extends StdOutSink implements ExtendedSink {
@Override
public static class RegionServerStdOutSink extends StdOutSink {
public void publishReadFailure(String table, String server) {
incReadFailureCount();
LOG.error(String.format("Read from table:%s on region server:%s", table, server));
}
@Override
public void publishReadTiming(String table, String server, long msTime) {
LOG.info(String.format("Read from table:%s on region server:%s in %dms",
table, server, msTime));
}
}
public static class ZookeeperStdOutSink extends StdOutSink implements ExtendedSink {
@Override public void publishReadFailure(String zNode, String server) {
public static class ZookeeperStdOutSink extends StdOutSink {
public void publishReadFailure(String zNode, String server) {
incReadFailureCount();
LOG.error(String.format("Read from zNode:%s on zookeeper instance:%s", zNode, server));
}
@Override public void publishReadTiming(String znode, String server, long msTime) {
public void publishReadTiming(String znode, String server, long msTime) {
LOG.info(String.format("Read from zNode:%s on zookeeper instance:%s in %dms",
znode, server, msTime));
}
@ -249,6 +203,38 @@ public final class Canary implements Tool {
private Map<String, AtomicLong> perTableReadLatency = new HashMap<>();
private AtomicLong writeLatency = new AtomicLong();
public void publishReadFailure(ServerName serverName, HRegionInfo region, Exception e) {
incReadFailureCount();
LOG.error(String.format("read from region %s on regionserver %s failed", region.getRegionNameAsString(), serverName), e);
}
public void publishReadFailure(ServerName serverName, HRegionInfo region, HColumnDescriptor column, Exception e) {
incReadFailureCount();
LOG.error(String.format("read from region %s on regionserver %s column family %s failed",
region.getRegionNameAsString(), serverName, column.getNameAsString()), e);
}
public void publishReadTiming(ServerName serverName, HRegionInfo region, HColumnDescriptor column, long msTime) {
LOG.info(String.format("read from region %s on regionserver %s column family %s in %dms",
region.getRegionNameAsString(), serverName, column.getNameAsString(), msTime));
}
public void publishWriteFailure(ServerName serverName, HRegionInfo region, Exception e) {
incWriteFailureCount();
LOG.error(String.format("write to region %s on regionserver %s failed", region.getRegionNameAsString(), serverName), e);
}
public void publishWriteFailure(ServerName serverName, HRegionInfo region, HColumnDescriptor column, Exception e) {
incWriteFailureCount();
LOG.error(String.format("write to region %s on regionserver %s column family %s failed",
region.getRegionNameAsString(), serverName, column.getNameAsString()), e);
}
public void publishWriteTiming(ServerName serverName, HRegionInfo region, HColumnDescriptor column, long msTime) {
LOG.info(String.format("write to region %s on regionserver %s column family %s in %dms",
region.getRegionNameAsString(), serverName, column.getNameAsString(), msTime));
}
public Map<String, AtomicLong> getReadLatencyMap() {
return this.perTableReadLatency;
}
@ -414,7 +400,7 @@ public final class Canary implements Tool {
sink.publishReadTiming(serverName, region, column, stopWatch.getTime());
} catch (Exception e) {
sink.publishReadFailure(serverName, region, column, e);
sink.updateReadFailedHostList(region, serverName.getHostname());
sink.updateReadFailures(region.getRegionNameAsString(), serverName.getHostname());
} finally {
if (rs != null) {
rs.close();
@ -471,7 +457,7 @@ public final class Canary implements Tool {
table.close();
} catch (IOException e) {
sink.publishWriteFailure(serverName, region, e);
sink.updateWriteFailedHostList(region, serverName.getHostname());
sink.updateWriteFailures(region.getRegionNameAsString(), serverName.getHostname() );
}
return null;
}
@ -484,11 +470,11 @@ public final class Canary implements Tool {
private Connection connection;
private String serverName;
private HRegionInfo region;
private ExtendedSink sink;
private RegionServerStdOutSink sink;
private AtomicLong successes;
RegionServerTask(Connection connection, String serverName, HRegionInfo region,
ExtendedSink sink, AtomicLong successes) {
RegionServerStdOutSink sink, AtomicLong successes) {
this.connection = connection;
this.serverName = serverName;
this.region = region;
@ -894,21 +880,21 @@ public final class Canary implements Tool {
System.arraycopy(args, index, monitorTargets, 0, length);
}
if (this.regionServerMode) {
if (this.sink instanceof RegionServerStdOutSink || this.regionServerMode) {
monitor =
new RegionServerMonitor(connection, monitorTargets, this.useRegExp,
(ExtendedSink) this.sink, this.executor, this.regionServerAllRegions,
(StdOutSink) this.sink, this.executor, this.regionServerAllRegions,
this.treatFailureAsError);
} else if (this.zookeeperMode) {
} else if (this.sink instanceof ZookeeperStdOutSink || this.zookeeperMode) {
monitor =
new ZookeeperMonitor(connection, monitorTargets, this.useRegExp,
(ZookeeperStdOutSink) this.sink, this.executor, this.treatFailureAsError);
(StdOutSink) this.sink, this.executor, this.treatFailureAsError);
} else {
monitor =
new RegionMonitor(connection, monitorTargets, this.useRegExp,
(RegionStdOutSink) this.sink, this.executor, this.writeSniffing,
this.writeTableName, this.treatFailureAsError, this.configuredReadTableTimeouts,
this.configuredWriteTableTimeout);
new RegionMonitor(connection, monitorTargets, this.useRegExp,
(StdOutSink) this.sink, this.executor, this.writeSniffing,
this.writeTableName, this.treatFailureAsError, this.configuredReadTableTimeouts,
this.configuredWriteTableTimeout);
}
return monitor;
}
@ -1003,8 +989,9 @@ public final class Canary implements Tool {
private long configuredWriteTableTimeout;
public RegionMonitor(Connection connection, String[] monitorTargets, boolean useRegExp,
RegionStdOutSink sink, ExecutorService executor, boolean writeSniffing, TableName writeTableName,
boolean treatFailureAsError, HashMap<String, Long> configuredReadTableTimeouts, long configuredWriteTableTimeout) {
StdOutSink sink, ExecutorService executor, boolean writeSniffing, TableName writeTableName,
boolean treatFailureAsError, HashMap<String, Long> configuredReadTableTimeouts,
long configuredWriteTableTimeout) {
super(connection, monitorTargets, useRegExp, sink, executor, treatFailureAsError);
Configuration conf = connection.getConfiguration();
this.writeSniffing = writeSniffing;
@ -1035,7 +1022,13 @@ public final class Canary implements Tool {
if (this.initAdmin()) {
try {
List<Future<Void>> taskFutures = new LinkedList<>();
RegionStdOutSink regionSink = this.getSink();
RegionStdOutSink regionSink = null;
try {
regionSink = this.getSink();
} catch (RuntimeException e) {
LOG.error("Run RegionMonitor failed!", e);
this.errorCode = ERROR_EXIT_CODE;
}
if (this.targets != null && this.targets.length > 0) {
String[] tables = generateMonitorTables(this.targets);
// Check to see that each table name passed in the -readTableTimeouts argument is also passed as a monitor target.
@ -1297,7 +1290,7 @@ public final class Canary implements Tool {
private final int timeout;
protected ZookeeperMonitor(Connection connection, String[] monitorTargets, boolean useRegExp,
ExtendedSink sink, ExecutorService executor, boolean treatFailureAsError) {
StdOutSink sink, ExecutorService executor, boolean treatFailureAsError) {
super(connection, monitorTargets, useRegExp, sink, executor, treatFailureAsError);
Configuration configuration = connection.getConfiguration();
znode =
@ -1315,8 +1308,16 @@ public final class Canary implements Tool {
@Override public void run() {
List<ZookeeperTask> tasks = Lists.newArrayList();
ZookeeperStdOutSink zkSink = null;
try {
zkSink = this.getSink();
} catch (RuntimeException e) {
LOG.error("Run ZooKeeperMonitor failed!", e);
this.errorCode = ERROR_EXIT_CODE;
}
this.initialized = true;
for (final String host : hosts) {
tasks.add(new ZookeeperTask(connection, host, znode, timeout, getSink()));
tasks.add(new ZookeeperTask(connection, host, znode, timeout, zkSink));
}
try {
for (Future<Void> future : this.executor.invokeAll(tasks)) {
@ -1335,7 +1336,6 @@ public final class Canary implements Tool {
this.done = true;
}
private ZookeeperStdOutSink getSink() {
if (!(sink instanceof ZookeeperStdOutSink)) {
throw new RuntimeException("Can only write to zookeeper sink");
@ -1351,22 +1351,32 @@ public final class Canary implements Tool {
private boolean allRegions;
public RegionServerMonitor(Connection connection, String[] monitorTargets, boolean useRegExp,
ExtendedSink sink, ExecutorService executor, boolean allRegions,
StdOutSink sink, ExecutorService executor, boolean allRegions,
boolean treatFailureAsError) {
super(connection, monitorTargets, useRegExp, sink, executor, treatFailureAsError);
this.allRegions = allRegions;
}
private ExtendedSink getSink() {
return (ExtendedSink) this.sink;
private RegionServerStdOutSink getSink() {
if (!(sink instanceof RegionServerStdOutSink)) {
throw new RuntimeException("Can only write to regionserver sink");
}
return ((RegionServerStdOutSink) sink);
}
@Override
public void run() {
if (this.initAdmin() && this.checkNoTableNames()) {
RegionServerStdOutSink regionServerSink = null;
try {
regionServerSink = this.getSink();
} catch (RuntimeException e) {
LOG.error("Run RegionServerMonitor failed!", e);
this.errorCode = ERROR_EXIT_CODE;
}
Map<String, List<HRegionInfo>> rsAndRMap = this.filterRegionServerByName();
this.initialized = true;
this.monitorRegionServers(rsAndRMap);
this.monitorRegionServers(rsAndRMap, regionServerSink);
}
this.done = true;
}
@ -1404,9 +1414,10 @@ public final class Canary implements Tool {
return foundTableNames.size() == 0;
}
private void monitorRegionServers(Map<String, List<HRegionInfo>> rsAndRMap) {
List<RegionServerTask> tasks = new ArrayList<RegionServerTask>();
Map<String, AtomicLong> successMap = new HashMap<String, AtomicLong>();
private void monitorRegionServers(Map<String, List<HRegionInfo>> rsAndRMap,
RegionServerStdOutSink regionServerSink) {
List<RegionServerTask> tasks = new ArrayList<>();
Map<String, AtomicLong> successMap = new HashMap<>();
Random rand = new Random();
for (Map.Entry<String, List<HRegionInfo>> entry : rsAndRMap.entrySet()) {
String serverName = entry.getKey();
@ -1419,7 +1430,7 @@ public final class Canary implements Tool {
tasks.add(new RegionServerTask(this.connection,
serverName,
region,
getSink(),
regionServerSink,
successes));
}
} else {
@ -1428,7 +1439,7 @@ public final class Canary implements Tool {
tasks.add(new RegionServerTask(this.connection,
serverName,
region,
getSink(),
regionServerSink,
successes));
}
}
@ -1572,4 +1583,4 @@ public final class Canary implements Tool {
executor.shutdown();
System.exit(exitCode);
}
}
}