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Add TableMetrics - c3 version of ColumnFamilyMetrics

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Using new, slimmer, metrics binding
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elcallio 2016-10-11 13:48:24 +02:00 committed by Calle Wilund
parent a44c18c621
commit 319dadb79c
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src/main/java/org/apache/cassandra/metrics/TableMetrics.java Normal file
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/*
* 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.cassandra.metrics;
import static com.scylladb.jmx.api.APIClient.getReader;
import java.util.function.BiFunction;
import java.util.function.Function;
import javax.management.MalformedObjectNameException;
import javax.management.ObjectName;
import org.apache.cassandra.db.ColumnFamilyStore;
import com.scylladb.jmx.api.APIClient;
/**
* Metrics for {@link ColumnFamilyStore}.
*/
public class TableMetrics implements Metrics {
private final MetricNameFactory factory;
private final MetricNameFactory aliasFactory;
private static final MetricNameFactory globalFactory = new AllTableMetricNameFactory("Table");
private static final MetricNameFactory globalAliasFactory = new AllTableMetricNameFactory("ColumnFamily");
private static final LatencyMetrics globalLatency[] = new LatencyMetrics[] {
new LatencyMetrics("Read", compose("read_latency"), globalFactory, globalAliasFactory),
new LatencyMetrics("Write", compose("read_latency"), globalFactory, globalAliasFactory),
new LatencyMetrics("Range", compose("read_latency"), globalFactory, globalAliasFactory), };
private final String cfName;
private final LatencyMetrics latencyMetrics[];
public TableMetrics(String keyspace, String columnFamily, boolean isIndex) {
this.factory = new TableMetricNameFactory(keyspace, columnFamily, isIndex, "Table");
this.aliasFactory = new TableMetricNameFactory(keyspace, columnFamily, isIndex, "ColumnFamily");
this.cfName = keyspace + ":" + columnFamily;
latencyMetrics = new LatencyMetrics[] {
new LatencyMetrics("Read", compose("read_latency"), cfName, factory, aliasFactory),
new LatencyMetrics("Write", compose("write_latency"), cfName, factory, aliasFactory),
new LatencyMetrics("Range", compose("range_latency"), cfName, factory, aliasFactory),
new LatencyMetrics("CasPrepare", compose("cas_prepare"), cfName, factory, aliasFactory),
new LatencyMetrics("CasPropose", compose("cas_propose"), cfName, factory, aliasFactory),
new LatencyMetrics("CasCommit", compose("cas_commit"), cfName, factory, aliasFactory), };
}
@Override
public void register(MetricsRegistry registry) throws MalformedObjectNameException {
Registry r = new Registry(registry, factory, aliasFactory, cfName);
registerCommon(r);
registerLocal(r);
}
@Override
public void registerGlobals(MetricsRegistry registry) throws MalformedObjectNameException {
Registry r = new Registry(registry, globalFactory, globalAliasFactory, null);
registerCommon(r);
for (LatencyMetrics l : globalLatency) {
l.register(registry);
}
}
private static String compose(String base, String name) {
String s = "/column_family/metrics/" + base;
return name != null ? s + "/" + name : s;
}
private static String compose(String base) {
return compose(base, null);
}
/**
* Creates metrics for given {@link ColumnFamilyStore}.
*
* @param cfs
* ColumnFamilyStore to measure metrics
*/
static class Registry extends MetricsRegistry {
@SuppressWarnings("unused")
private Function<APIClient, Long> newGauge(final String url) {
return newGauge(Long.class, url);
}
public <T> Function<APIClient, T> newGauge(BiFunction<APIClient, String, T> function, String url) {
return c -> {
return function.apply(c, url);
};
}
private <T> Function<APIClient, T> newGauge(Class<T> type, final String url) {
return newGauge(getReader(type), url);
}
final MetricNameFactory factory;
final MetricNameFactory aliasFactory;
final String cfName;
public Registry(MetricsRegistry other, MetricNameFactory factory, MetricNameFactory aliasFactory,
String cfName) {
super(other);
this.cfName = cfName;
this.factory = factory;
this.aliasFactory = aliasFactory;
}
public void createTableGauge(String name, String uri) throws MalformedObjectNameException {
createTableGauge(name, name, uri);
}
public void createTableGauge(String name, String alias, String uri) throws MalformedObjectNameException {
createTableGauge(Long.class, name, alias, uri);
}
public <T> void createTableGauge(Class<T> c, String name, String uri) throws MalformedObjectNameException {
createTableGauge(c, c, name, name, uri);
}
public <T> void createTableGauge(Class<T> c, String name, String alias, String uri) throws MalformedObjectNameException {
createTableGauge(c, name, alias, uri, getReader(c));
}
public <T> void createTableGauge(Class<T> c, String name, String uri, BiFunction<APIClient, String, T> f)
throws MalformedObjectNameException {
createTableGauge(c, name, name, uri, f);
}
public <T> void createTableGauge(Class<T> c, String name, String alias, String uri,
BiFunction<APIClient, String, T> f) throws MalformedObjectNameException {
register(() -> gauge(newGauge(f, compose(uri, cfName))), factory.createMetricName(name),
aliasFactory.createMetricName(alias));
}
public <L, G> void createTableGauge(Class<L> c1, Class<G> c2, String name, String alias, String uri)
throws MalformedObjectNameException {
if (cfName != null) {
createTableGauge(c1, name, alias, uri, getReader(c1));
} else { // global case
createTableGauge(c2, name, alias, uri, getReader(c2));
}
}
public void createTableCounter(String name, String uri) throws MalformedObjectNameException {
createTableCounter(name, name, uri);
}
public void createTableCounter(String name, String alias, String uri) throws MalformedObjectNameException {
register(() -> counter(compose(uri, cfName)), factory.createMetricName(name),
aliasFactory.createMetricName(alias));
}
public void createTableHistogram(String name, String uri, boolean considerZeros)
throws MalformedObjectNameException {
createTableHistogram(name, name, uri, considerZeros);
}
public void createTableHistogram(String name, String alias, String uri, boolean considerZeros)
throws MalformedObjectNameException {
register(() -> histogram(compose(uri, cfName), considerZeros), factory.createMetricName(name),
aliasFactory.createMetricName(alias));
}
public void createTimer(String name, String uri) throws MalformedObjectNameException {
register(() -> timer(compose(uri, cfName)), factory.createMetricName(name));
}
}
private void registerLocal(Registry registry) throws MalformedObjectNameException {
registry.createTableGauge(long[].class, "EstimatedPartitionSizeHistogram", "EstimatedRowSizeHistogram",
"estimated_row_size_histogram", APIClient::getEstimatedHistogramAsLongArrValue);
registry.createTableGauge("EstimatedPartitionCount", "EstimatedRowCount", "estimated_row_count");
registry.createTableGauge(long[].class, "EstimatedColumnCountHistogram", "estimated_column_count_histogram",
APIClient::getEstimatedHistogramAsLongArrValue);
registry.createTableGauge(Double.class, "KeyCacheHitRate", "key_cache_hit_rate");
registry.createTimer("CoordinatorReadLatency", "coordinator/read");
registry.createTimer("CoordinatorScanLatency", "coordinator/scan");
registry.createTimer("WaitingOnFreeMemtableSpace", "waiting_on_free_memtable");
for (LatencyMetrics l : latencyMetrics) {
l.register(registry);
}
}
private static void registerCommon(Registry registry) throws MalformedObjectNameException {
registry.createTableGauge("MemtableColumnsCount", "memtable_columns_count");
registry.createTableGauge("MemtableOnHeapSize", "memtable_on_heap_size");
registry.createTableGauge("MemtableOffHeapSize", "memtable_off_heap_size");
registry.createTableGauge("MemtableLiveDataSize", "memtable_live_data_size");
registry.createTableGauge("AllMemtablesHeapSize", "all_memtables_on_heap_size");
registry.createTableGauge("AllMemtablesOffHeapSize", "all_memtables_off_heap_size");
registry.createTableGauge("AllMemtablesLiveDataSize", "all_memtables_live_data_size");
registry.createTableCounter("MemtableSwitchCount", "memtable_switch_count");
registry.createTableHistogram("SSTablesPerReadHistogram", "sstables_per_read_histogram", true);
registry.createTableGauge(Double.class, "CompressionRatio", "compression_ratio");
registry.createTableCounter("PendingFlushes", "pending_flushes");
registry.createTableGauge(Integer.class, Long.class, "PendingCompactions", "PendingCompactions",
"pending_compactions");
registry.createTableGauge(Integer.class, Long.class, "LiveSSTableCount", "LiveSSTableCount",
"live_ss_table_count");
registry.createTableCounter("LiveDiskSpaceUsed", "live_disk_space_used");
registry.createTableCounter("TotalDiskSpaceUsed", "total_disk_space_used");
registry.createTableGauge("MinPartitionSize", "MinRowSize", "min_row_size");
registry.createTableGauge("MaxPartitionSize", "MaxRowSize", "max_row_size");
registry.createTableGauge("MeanPartitionSize", "MeanRowSize", "mean_row_size");
registry.createTableGauge("BloomFilterFalsePositives", "bloom_filter_false_positives");
registry.createTableGauge("RecentBloomFilterFalsePositives", "recent_bloom_filter_false_positives");
registry.createTableGauge(Double.class, "BloomFilterFalseRatio", "bloom_filter_false_ratio");
registry.createTableGauge(Double.class, "RecentBloomFilterFalseRatio", "recent_bloom_filter_false_ratio");
registry.createTableGauge("BloomFilterDiskSpaceUsed", "bloom_filter_disk_space_used");
registry.createTableGauge("BloomFilterOffHeapMemoryUsed", "bloom_filter_off_heap_memory_used");
registry.createTableGauge("IndexSummaryOffHeapMemoryUsed", "index_summary_off_heap_memory_used");
registry.createTableGauge("CompressionMetadataOffHeapMemoryUsed", "compression_metadata_off_heap_memory_used");
registry.createTableGauge("SpeculativeRetries", "speculative_retries");
registry.createTableHistogram("TombstoneScannedHistogram", "tombstone_scanned_histogram", false);
registry.createTableHistogram("LiveScannedHistogram", "live_scanned_histogram", false);
registry.createTableHistogram("ColUpdateTimeDeltaHistogram", "col_update_time_delta_histogram", false);
// We do not want to capture view mutation specific metrics for a view
// They only makes sense to capture on the base table
// TODO: views
// if (!cfs.metadata.isView())
// {
// viewLockAcquireTime = createTableTimer("ViewLockAcquireTime",
// cfs.keyspace.metric.viewLockAcquireTime);
// viewReadTime = createTableTimer("ViewReadTime",
// cfs.keyspace.metric.viewReadTime);
// }
registry.createTableGauge("SnapshotsSize", "snapshots_size");
registry.createTableCounter("RowCacheHitOutOfRange", "row_cache_hit_out_of_range");
registry.createTableCounter("RowCacheHit", "row_cache_hit");
registry.createTableCounter("RowCacheMiss", "row_cache_miss");
}
static class TableMetricNameFactory implements MetricNameFactory {
private final String keyspaceName;
private final String tableName;
private final boolean isIndex;
private final String type;
public TableMetricNameFactory(String keyspaceName, String tableName, boolean isIndex, String type) {
this.keyspaceName = keyspaceName;
this.tableName = tableName;
this.isIndex = isIndex;
this.type = type;
}
@Override
public ObjectName createMetricName(String metricName) throws MalformedObjectNameException {
String groupName = TableMetrics.class.getPackage().getName();
String type = isIndex ? "Index" + this.type : this.type;
StringBuilder mbeanName = new StringBuilder();
mbeanName.append(groupName).append(":");
mbeanName.append("type=").append(type);
mbeanName.append(",keyspace=").append(keyspaceName);
mbeanName.append(",scope=").append(tableName);
mbeanName.append(",name=").append(metricName);
return new ObjectName(mbeanName.toString());
}
}
static class AllTableMetricNameFactory implements MetricNameFactory {
private final String type;
public AllTableMetricNameFactory(String type) {
this.type = type;
}
@Override
public ObjectName createMetricName(String metricName) throws MalformedObjectNameException {
String groupName = TableMetrics.class.getPackage().getName();
StringBuilder mbeanName = new StringBuilder();
mbeanName.append(groupName).append(":");
mbeanName.append("type=" + type);
mbeanName.append(",name=").append(metricName);
return new ObjectName(mbeanName.toString());
}
}
public enum Sampler {
READS, WRITES
}
}