| /* |
| * 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 |
| * |
| * https://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.accumulo.tserver; |
| |
| import java.util.function.ToDoubleFunction; |
| |
| import org.apache.accumulo.core.metrics.MetricsProducer; |
| import org.apache.accumulo.core.spi.cache.BlockCache; |
| |
| import io.micrometer.core.instrument.FunctionCounter; |
| import io.micrometer.core.instrument.MeterRegistry; |
| |
| public class BlockCacheMetrics implements MetricsProducer { |
| |
| BlockCache indexCache; |
| BlockCache dataCache; |
| BlockCache summaryCache; |
| |
| public BlockCacheMetrics(BlockCache indexCache, BlockCache dataCache, BlockCache summaryCache) { |
| this.indexCache = indexCache; |
| this.dataCache = dataCache; |
| this.summaryCache = summaryCache; |
| } |
| |
| @Override |
| public void registerMetrics(MeterRegistry registry) { |
| ToDoubleFunction<BlockCache> getHitCount = cache -> cache.getStats().hitCount(); |
| ToDoubleFunction<BlockCache> getRequestCount = cache -> cache.getStats().requestCount(); |
| ToDoubleFunction<BlockCache> getEvictionCount = cache -> cache.getStats().evictionCount(); |
| |
| FunctionCounter.builder(METRICS_BLOCKCACHE_INDEX_HITCOUNT, indexCache, getHitCount) |
| .description("Index block cache hit count").register(registry); |
| FunctionCounter.builder(METRICS_BLOCKCACHE_INDEX_REQUESTCOUNT, indexCache, getRequestCount) |
| .description("Index block cache request count").register(registry); |
| FunctionCounter.builder(METRICS_BLOCKCACHE_INDEX_EVICTIONCOUNT, indexCache, getEvictionCount) |
| .description("Index block cache eviction count").register(registry); |
| |
| FunctionCounter.builder(METRICS_BLOCKCACHE_DATA_HITCOUNT, dataCache, getHitCount) |
| .description("Data block cache hit count").register(registry); |
| FunctionCounter.builder(METRICS_BLOCKCACHE_DATA_REQUESTCOUNT, dataCache, getRequestCount) |
| .description("Data block cache request count").register(registry); |
| FunctionCounter.builder(METRICS_BLOCKCACHE_DATA_EVICTIONCOUNT, dataCache, getEvictionCount) |
| .description("Data block cache eviction count").register(registry); |
| |
| FunctionCounter.builder(METRICS_BLOCKCACHE_SUMMARY_HITCOUNT, summaryCache, getHitCount) |
| .description("Summary block cache hit count").register(registry); |
| FunctionCounter.builder(METRICS_BLOCKCACHE_SUMMARY_REQUESTCOUNT, summaryCache, getRequestCount) |
| .description("Summary block cache request count").register(registry); |
| FunctionCounter |
| .builder(METRICS_BLOCKCACHE_SUMMARY_EVICTIONCOUNT, summaryCache, getEvictionCount) |
| .description("Summary block cache eviction count").register(registry); |
| } |
| } |