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| <pre><span class="source-line-no">001</span><span id="line-1">/*</span> |
| <span class="source-line-no">002</span><span id="line-2"> * Licensed to the Apache Software Foundation (ASF) under one</span> |
| <span class="source-line-no">003</span><span id="line-3"> * or more contributor license agreements. See the NOTICE file</span> |
| <span class="source-line-no">004</span><span id="line-4"> * distributed with this work for additional information</span> |
| <span class="source-line-no">005</span><span id="line-5"> * regarding copyright ownership. The ASF licenses this file</span> |
| <span class="source-line-no">006</span><span id="line-6"> * to you under the Apache License, Version 2.0 (the</span> |
| <span class="source-line-no">007</span><span id="line-7"> * "License"); you may not use this file except in compliance</span> |
| <span class="source-line-no">008</span><span id="line-8"> * with the License. You may obtain a copy of the License at</span> |
| <span class="source-line-no">009</span><span id="line-9"> *</span> |
| <span class="source-line-no">010</span><span id="line-10"> * http://www.apache.org/licenses/LICENSE-2.0</span> |
| <span class="source-line-no">011</span><span id="line-11"> *</span> |
| <span class="source-line-no">012</span><span id="line-12"> * Unless required by applicable law or agreed to in writing, software</span> |
| <span class="source-line-no">013</span><span id="line-13"> * distributed under the License is distributed on an "AS IS" BASIS,</span> |
| <span class="source-line-no">014</span><span id="line-14"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span> |
| <span class="source-line-no">015</span><span id="line-15"> * See the License for the specific language governing permissions and</span> |
| <span class="source-line-no">016</span><span id="line-16"> * limitations under the License.</span> |
| <span class="source-line-no">017</span><span id="line-17"> */</span> |
| <span class="source-line-no">018</span><span id="line-18">package org.apache.hadoop.hbase.quotas;</span> |
| <span class="source-line-no">019</span><span id="line-19"></span> |
| <span class="source-line-no">020</span><span id="line-20">import java.io.IOException;</span> |
| <span class="source-line-no">021</span><span id="line-21">import java.util.Map;</span> |
| <span class="source-line-no">022</span><span id="line-22">import java.util.Map.Entry;</span> |
| <span class="source-line-no">023</span><span id="line-23">import java.util.Objects;</span> |
| <span class="source-line-no">024</span><span id="line-24">import java.util.concurrent.locks.ReentrantReadWriteLock;</span> |
| <span class="source-line-no">025</span><span id="line-25">import java.util.concurrent.locks.ReentrantReadWriteLock.ReadLock;</span> |
| <span class="source-line-no">026</span><span id="line-26">import java.util.concurrent.locks.ReentrantReadWriteLock.WriteLock;</span> |
| <span class="source-line-no">027</span><span id="line-27">import java.util.stream.Collectors;</span> |
| <span class="source-line-no">028</span><span id="line-28">import org.apache.hadoop.hbase.client.Connection;</span> |
| <span class="source-line-no">029</span><span id="line-29">import org.apache.hadoop.hbase.client.RegionInfo;</span> |
| <span class="source-line-no">030</span><span id="line-30">import org.apache.hadoop.hbase.quotas.SpaceQuotaSnapshot.SpaceQuotaStatus;</span> |
| <span class="source-line-no">031</span><span id="line-31">import org.apache.yetus.audience.InterfaceAudience;</span> |
| <span class="source-line-no">032</span><span id="line-32"></span> |
| <span class="source-line-no">033</span><span id="line-33">import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;</span> |
| <span class="source-line-no">034</span><span id="line-34">import org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.Quotas;</span> |
| <span class="source-line-no">035</span><span id="line-35">import org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuota;</span> |
| <span class="source-line-no">036</span><span id="line-36"></span> |
| <span class="source-line-no">037</span><span id="line-37">/**</span> |
| <span class="source-line-no">038</span><span id="line-38"> * {@link QuotaSnapshotStore} implementation for namespaces.</span> |
| <span class="source-line-no">039</span><span id="line-39"> */</span> |
| <span class="source-line-no">040</span><span id="line-40">@InterfaceAudience.Private</span> |
| <span class="source-line-no">041</span><span id="line-41">public class NamespaceQuotaSnapshotStore implements QuotaSnapshotStore<String> {</span> |
| <span class="source-line-no">042</span><span id="line-42"> private final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();</span> |
| <span class="source-line-no">043</span><span id="line-43"> private final ReadLock rlock = lock.readLock();</span> |
| <span class="source-line-no">044</span><span id="line-44"> private final WriteLock wlock = lock.writeLock();</span> |
| <span class="source-line-no">045</span><span id="line-45"></span> |
| <span class="source-line-no">046</span><span id="line-46"> private final Connection conn;</span> |
| <span class="source-line-no">047</span><span id="line-47"> private final QuotaObserverChore chore;</span> |
| <span class="source-line-no">048</span><span id="line-48"> private Map<RegionInfo, Long> regionUsage;</span> |
| <span class="source-line-no">049</span><span id="line-49"></span> |
| <span class="source-line-no">050</span><span id="line-50"> public NamespaceQuotaSnapshotStore(Connection conn, QuotaObserverChore chore,</span> |
| <span class="source-line-no">051</span><span id="line-51"> Map<RegionInfo, Long> regionUsage) {</span> |
| <span class="source-line-no">052</span><span id="line-52"> this.conn = Objects.requireNonNull(conn);</span> |
| <span class="source-line-no">053</span><span id="line-53"> this.chore = Objects.requireNonNull(chore);</span> |
| <span class="source-line-no">054</span><span id="line-54"> this.regionUsage = Objects.requireNonNull(regionUsage);</span> |
| <span class="source-line-no">055</span><span id="line-55"> }</span> |
| <span class="source-line-no">056</span><span id="line-56"></span> |
| <span class="source-line-no">057</span><span id="line-57"> @Override</span> |
| <span class="source-line-no">058</span><span id="line-58"> public SpaceQuota getSpaceQuota(String namespace) throws IOException {</span> |
| <span class="source-line-no">059</span><span id="line-59"> Quotas quotas = getQuotaForNamespace(namespace);</span> |
| <span class="source-line-no">060</span><span id="line-60"> if (quotas != null && quotas.hasSpace()) {</span> |
| <span class="source-line-no">061</span><span id="line-61"> return quotas.getSpace();</span> |
| <span class="source-line-no">062</span><span id="line-62"> }</span> |
| <span class="source-line-no">063</span><span id="line-63"> return null;</span> |
| <span class="source-line-no">064</span><span id="line-64"> }</span> |
| <span class="source-line-no">065</span><span id="line-65"></span> |
| <span class="source-line-no">066</span><span id="line-66"> /**</span> |
| <span class="source-line-no">067</span><span id="line-67"> * Fetches the namespace quota. Visible for mocking/testing.</span> |
| <span class="source-line-no">068</span><span id="line-68"> */</span> |
| <span class="source-line-no">069</span><span id="line-69"> Quotas getQuotaForNamespace(String namespace) throws IOException {</span> |
| <span class="source-line-no">070</span><span id="line-70"> return QuotaTableUtil.getNamespaceQuota(conn, namespace);</span> |
| <span class="source-line-no">071</span><span id="line-71"> }</span> |
| <span class="source-line-no">072</span><span id="line-72"></span> |
| <span class="source-line-no">073</span><span id="line-73"> @Override</span> |
| <span class="source-line-no">074</span><span id="line-74"> public SpaceQuotaSnapshot getCurrentState(String namespace) {</span> |
| <span class="source-line-no">075</span><span id="line-75"> // Defer the "current state" to the chore</span> |
| <span class="source-line-no">076</span><span id="line-76"> return this.chore.getNamespaceQuotaSnapshot(namespace);</span> |
| <span class="source-line-no">077</span><span id="line-77"> }</span> |
| <span class="source-line-no">078</span><span id="line-78"></span> |
| <span class="source-line-no">079</span><span id="line-79"> @Override</span> |
| <span class="source-line-no">080</span><span id="line-80"> public SpaceQuotaSnapshot getTargetState(String subject, SpaceQuota spaceQuota)</span> |
| <span class="source-line-no">081</span><span id="line-81"> throws IOException {</span> |
| <span class="source-line-no">082</span><span id="line-82"> rlock.lock();</span> |
| <span class="source-line-no">083</span><span id="line-83"> try {</span> |
| <span class="source-line-no">084</span><span id="line-84"> final long sizeLimitInBytes = spaceQuota.getSoftLimit();</span> |
| <span class="source-line-no">085</span><span id="line-85"> long sum = 0L;</span> |
| <span class="source-line-no">086</span><span id="line-86"> for (Entry<RegionInfo, Long> entry : filterBySubject(subject)) {</span> |
| <span class="source-line-no">087</span><span id="line-87"> sum += entry.getValue();</span> |
| <span class="source-line-no">088</span><span id="line-88"> }</span> |
| <span class="source-line-no">089</span><span id="line-89"> // Add in the size for any snapshots against this table</span> |
| <span class="source-line-no">090</span><span id="line-90"> sum += QuotaTableUtil.getNamespaceSnapshotSize(conn, subject);</span> |
| <span class="source-line-no">091</span><span id="line-91"> // Observance is defined as the size of the table being less than the limit</span> |
| <span class="source-line-no">092</span><span id="line-92"> SpaceQuotaStatus status = sum <= sizeLimitInBytes</span> |
| <span class="source-line-no">093</span><span id="line-93"> ? SpaceQuotaStatus.notInViolation()</span> |
| <span class="source-line-no">094</span><span id="line-94"> : new SpaceQuotaStatus(ProtobufUtil.toViolationPolicy(spaceQuota.getViolationPolicy()));</span> |
| <span class="source-line-no">095</span><span id="line-95"> return new SpaceQuotaSnapshot(status, sum, sizeLimitInBytes);</span> |
| <span class="source-line-no">096</span><span id="line-96"> } finally {</span> |
| <span class="source-line-no">097</span><span id="line-97"> rlock.unlock();</span> |
| <span class="source-line-no">098</span><span id="line-98"> }</span> |
| <span class="source-line-no">099</span><span id="line-99"> }</span> |
| <span class="source-line-no">100</span><span id="line-100"></span> |
| <span class="source-line-no">101</span><span id="line-101"> @Override</span> |
| <span class="source-line-no">102</span><span id="line-102"> public Iterable<Entry<RegionInfo, Long>> filterBySubject(String namespace) {</span> |
| <span class="source-line-no">103</span><span id="line-103"> rlock.lock();</span> |
| <span class="source-line-no">104</span><span id="line-104"> try {</span> |
| <span class="source-line-no">105</span><span id="line-105"> return regionUsage.entrySet().stream()</span> |
| <span class="source-line-no">106</span><span id="line-106"> .filter(entry -> namespace.equals(entry.getKey().getTable().getNamespaceAsString()))</span> |
| <span class="source-line-no">107</span><span id="line-107"> .collect(Collectors.toList());</span> |
| <span class="source-line-no">108</span><span id="line-108"> } finally {</span> |
| <span class="source-line-no">109</span><span id="line-109"> rlock.unlock();</span> |
| <span class="source-line-no">110</span><span id="line-110"> }</span> |
| <span class="source-line-no">111</span><span id="line-111"> }</span> |
| <span class="source-line-no">112</span><span id="line-112"></span> |
| <span class="source-line-no">113</span><span id="line-113"> @Override</span> |
| <span class="source-line-no">114</span><span id="line-114"> public void setCurrentState(String namespace, SpaceQuotaSnapshot snapshot) {</span> |
| <span class="source-line-no">115</span><span id="line-115"> // Defer the "current state" to the chore</span> |
| <span class="source-line-no">116</span><span id="line-116"> this.chore.setNamespaceQuotaSnapshot(namespace, snapshot);</span> |
| <span class="source-line-no">117</span><span id="line-117"> }</span> |
| <span class="source-line-no">118</span><span id="line-118"></span> |
| <span class="source-line-no">119</span><span id="line-119"> @Override</span> |
| <span class="source-line-no">120</span><span id="line-120"> public void setRegionUsage(Map<RegionInfo, Long> regionUsage) {</span> |
| <span class="source-line-no">121</span><span id="line-121"> wlock.lock();</span> |
| <span class="source-line-no">122</span><span id="line-122"> try {</span> |
| <span class="source-line-no">123</span><span id="line-123"> this.regionUsage = Objects.requireNonNull(regionUsage);</span> |
| <span class="source-line-no">124</span><span id="line-124"> } finally {</span> |
| <span class="source-line-no">125</span><span id="line-125"> wlock.unlock();</span> |
| <span class="source-line-no">126</span><span id="line-126"> }</span> |
| <span class="source-line-no">127</span><span id="line-127"> }</span> |
| <span class="source-line-no">128</span><span id="line-128">}</span> |
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| </pre> |
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