c6aee9f63e
Required by origin 3.11 nodetool. Message-Id: <20180801084545.23239-1-calle@scylladb.com>
77 lines
3.1 KiB
Java
77 lines
3.1 KiB
Java
/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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* Copyright 2015 Cloudius Systems
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*
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* Modified by Cloudius Systems
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*/
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package org.apache.cassandra.metrics;
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import java.util.HashMap;
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import java.util.Map;
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import javax.json.JsonArray;
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import javax.json.JsonObject;
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import javax.management.MalformedObjectNameException;
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/**
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* Metrics for compaction.
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*/
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public class CompactionMetrics implements Metrics {
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public CompactionMetrics() {
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}
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@Override
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public void register(MetricsRegistry registry) throws MalformedObjectNameException {
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MetricNameFactory factory = new DefaultNameFactory("Compaction");
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/** Estimated number of compactions remaining to perform */
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registry.register(() -> registry.gauge(Integer.class, "/compaction_manager/metrics/pending_tasks"),
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factory.createMetricName("PendingTasks"));
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/** Number of completed compactions since server [re]start */
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registry.register(() -> registry.gauge("/compaction_manager/metrics/completed_tasks"),
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factory.createMetricName("CompletedTasks"));
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/** Total number of compactions since server [re]start */
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registry.register(() -> registry.meter("/compaction_manager/metrics/total_compactions_completed"),
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factory.createMetricName("TotalCompactionsCompleted"));
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/** Total number of bytes compacted since server [re]start */
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registry.register(() -> registry.meter("/compaction_manager/metrics/bytes_compacted"),
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factory.createMetricName("BytesCompacted"));
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registry.register(() -> registry.gauge((client) -> {
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Map<String, Map<String, Integer>> result = new HashMap<>();
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JsonArray compactions = client.getJsonArray("compaction_manager/compactions");
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for (int i = 0; i < compactions.size(); i++) {
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JsonObject c = compactions.getJsonObject(i);
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String ks = c.getString("ks");
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String cf = c.getString("cf");
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if (!result.containsKey(ks)) {
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result.put(ks, new HashMap<>());
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}
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Map<String, Integer> map = result.get(ks);
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map.put(cf, (int)(c.getJsonNumber("total").longValue() - c.getJsonNumber("completed").longValue()));
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}
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return result;
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}), factory.createMetricName("PendingTasksByTableName"));
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}
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}
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