From eb3beb9c2478fcf84bde458c88590d85eff20539 Mon Sep 17 00:00:00 2001 From: Michael Stack Date: Mon, 29 Nov 2010 20:46:00 +0000 Subject: [PATCH] HBASE-3223 Get VersionInfo for Running HBase Process git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1040280 13f79535-47bb-0310-9956-ffa450edef68 --- .../hadoop/hbase/metrics/HBaseInfo.java | 96 +++++++++++++++++++ .../hadoop/hbase/metrics/MetricsString.java | 56 +++++++++++ 2 files changed, 152 insertions(+) create mode 100644 src/main/java/org/apache/hadoop/hbase/metrics/HBaseInfo.java create mode 100644 src/main/java/org/apache/hadoop/hbase/metrics/MetricsString.java diff --git a/src/main/java/org/apache/hadoop/hbase/metrics/HBaseInfo.java b/src/main/java/org/apache/hadoop/hbase/metrics/HBaseInfo.java new file mode 100644 index 00000000000..fb65a652d3d --- /dev/null +++ b/src/main/java/org/apache/hadoop/hbase/metrics/HBaseInfo.java @@ -0,0 +1,96 @@ +/** + * Copyright 2010 The Apache Software Foundation + * + * 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.hadoop.hbase.metrics; + +import org.apache.hadoop.hbase.metrics.MetricsMBeanBase; +import org.apache.hadoop.metrics.MetricsContext; +import org.apache.hadoop.metrics.MetricsRecord; +import org.apache.hadoop.metrics.MetricsUtil; +import org.apache.hadoop.metrics.util.MBeanUtil; +import org.apache.hadoop.metrics.util.MetricsRegistry; + +import javax.management.ObjectName; + +/** + * Exports HBase system information as an MBean for JMX observation. + */ +public class HBaseInfo { + protected static class HBaseInfoMBean extends MetricsMBeanBase { + private final ObjectName mbeanName; + + public HBaseInfoMBean(MetricsRegistry registry, String rsName) { + super(registry, "HBaseInfo"); + mbeanName = MBeanUtil.registerMBean("HBase", + "Info", this); + } + + public void shutdown() { + if (mbeanName != null) + MBeanUtil.unregisterMBean(mbeanName); + } + } + + protected final MetricsRecord mr; + protected final HBaseInfoMBean mbean; + protected MetricsRegistry registry = new MetricsRegistry(); + + private static HBaseInfo theInstance = null; + public synchronized static HBaseInfo init() { + if (theInstance == null) { + theInstance = new HBaseInfo(); + } + return theInstance; + } + + // HBase jar info + private MetricsString date = new MetricsString("date", registry, + org.apache.hadoop.hbase.util.VersionInfo.getDate()); + private MetricsString revision = new MetricsString("revision", registry, + org.apache.hadoop.hbase.util.VersionInfo.getRevision()); + private MetricsString url = new MetricsString("url", registry, + org.apache.hadoop.hbase.util.VersionInfo.getUrl()); + private MetricsString user = new MetricsString("user", registry, + org.apache.hadoop.hbase.util.VersionInfo.getUser()); + private MetricsString version = new MetricsString("version", registry, + org.apache.hadoop.hbase.util.VersionInfo.getVersion()); + + // Info on the HDFS jar that HBase has (aka: HDFS Client) + private MetricsString hdfsDate = new MetricsString("hdfsDate", registry, + org.apache.hadoop.util.VersionInfo.getDate()); + private MetricsString hdfsRev = new MetricsString("hdfsRevision", registry, + org.apache.hadoop.util.VersionInfo.getRevision()); + private MetricsString hdfsUrl = new MetricsString("hdfsUrl", registry, + org.apache.hadoop.util.VersionInfo.getUrl()); + private MetricsString hdfsUser = new MetricsString("hdfsUser", registry, + org.apache.hadoop.util.VersionInfo.getUser()); + private MetricsString hdfsVer = new MetricsString("hdfsVersion", registry, + org.apache.hadoop.util.VersionInfo.getVersion()); + + protected HBaseInfo() { + MetricsContext context = MetricsUtil.getContext("hbase"); + mr = MetricsUtil.createRecord(context, "info"); + String name = Thread.currentThread().getName(); + mr.setTag("Info", name); + + // export for JMX + mbean = new HBaseInfoMBean(this.registry, name); + } + +} diff --git a/src/main/java/org/apache/hadoop/hbase/metrics/MetricsString.java b/src/main/java/org/apache/hadoop/hbase/metrics/MetricsString.java new file mode 100644 index 00000000000..2ee8066f59d --- /dev/null +++ b/src/main/java/org/apache/hadoop/hbase/metrics/MetricsString.java @@ -0,0 +1,56 @@ +/** + * 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.hadoop.hbase.metrics; + +import org.apache.commons.logging.Log; +import org.apache.commons.logging.LogFactory; +import org.apache.hadoop.metrics.MetricsRecord; +import org.apache.hadoop.metrics.util.MetricsBase; +import org.apache.hadoop.metrics.util.MetricsRegistry; + +/** + * Publishes a string to the metrics collector + */ +public class MetricsString extends MetricsBase { + private static final Log LOG = LogFactory.getLog("org.apache.hadoop.hbase.metrics"); + + private String value; + + public MetricsString(final String name, final MetricsRegistry registry, + final String value) { + super(name, NO_DESCRIPTION); + this.value = value; + registry.add(name, this); + } + public MetricsString(final String name, final String description, + final MetricsRegistry registry, final String value) { + super(name, description); + this.value = value; + registry.add(name, this); + } + + public String getValue() { + return this.value; + } + + @Override + public synchronized void pushMetric(final MetricsRecord mr) { + // NOOP + // MetricsMBeanBase.getAttribute is where we actually fill the data + } +} \ No newline at end of file