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Posted to commits@hbase.apache.org by gi...@apache.org on 2018/04/20 14:47:00 UTC
[19/27] hbase-site git commit: Published site at
914de1141699142bce1486468a742233d9440b23.
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/1facf1d3/devapidocs/src-html/org/apache/hadoop/hbase/quotas/FileArchiverNotifierImpl.QuotaSnapshotSizeSerializationException.html
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diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/quotas/FileArchiverNotifierImpl.QuotaSnapshotSizeSerializationException.html b/devapidocs/src-html/org/apache/hadoop/hbase/quotas/FileArchiverNotifierImpl.QuotaSnapshotSizeSerializationException.html
index e080cd6..73a1036 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/quotas/FileArchiverNotifierImpl.QuotaSnapshotSizeSerializationException.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/quotas/FileArchiverNotifierImpl.QuotaSnapshotSizeSerializationException.html
@@ -42,604 +42,605 @@
<span class="sourceLineNo">034</span>import java.util.function.Predicate;<a name="line.34"></a>
<span class="sourceLineNo">035</span>import java.util.stream.Collectors;<a name="line.35"></a>
<span class="sourceLineNo">036</span><a name="line.36"></a>
-<span class="sourceLineNo">037</span>import org.apache.commons.lang.builder.HashCodeBuilder;<a name="line.37"></a>
-<span class="sourceLineNo">038</span>import org.apache.commons.logging.Log;<a name="line.38"></a>
-<span class="sourceLineNo">039</span>import org.apache.commons.logging.LogFactory;<a name="line.39"></a>
-<span class="sourceLineNo">040</span>import org.apache.hadoop.conf.Configuration;<a name="line.40"></a>
-<span class="sourceLineNo">041</span>import org.apache.hadoop.fs.FileStatus;<a name="line.41"></a>
-<span class="sourceLineNo">042</span>import org.apache.hadoop.fs.FileSystem;<a name="line.42"></a>
-<span class="sourceLineNo">043</span>import org.apache.hadoop.fs.Path;<a name="line.43"></a>
-<span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.TableName;<a name="line.44"></a>
-<span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.client.Connection;<a name="line.45"></a>
-<span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.client.Get;<a name="line.46"></a>
-<span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.client.Put;<a name="line.47"></a>
-<span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.client.Result;<a name="line.48"></a>
-<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.client.Table;<a name="line.49"></a>
-<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.snapshot.SnapshotDescriptionUtils;<a name="line.50"></a>
-<span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.snapshot.SnapshotManifest;<a name="line.51"></a>
-<span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.util.FSUtils;<a name="line.52"></a>
-<span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.util.HFileArchiveUtil;<a name="line.53"></a>
-<span class="sourceLineNo">054</span>import org.apache.hadoop.util.StringUtils;<a name="line.54"></a>
-<span class="sourceLineNo">055</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.55"></a>
-<span class="sourceLineNo">056</span><a name="line.56"></a>
-<span class="sourceLineNo">057</span>import org.apache.hbase.thirdparty.com.google.common.collect.HashMultimap;<a name="line.57"></a>
-<span class="sourceLineNo">058</span>import org.apache.hbase.thirdparty.com.google.common.collect.Multimap;<a name="line.58"></a>
-<span class="sourceLineNo">059</span>import org.apache.hbase.thirdparty.com.google.protobuf.InvalidProtocolBufferException;<a name="line.59"></a>
-<span class="sourceLineNo">060</span><a name="line.60"></a>
-<span class="sourceLineNo">061</span>import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.61"></a>
-<span class="sourceLineNo">062</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.SnapshotProtos.SnapshotDescription;<a name="line.62"></a>
-<span class="sourceLineNo">063</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.SnapshotProtos.SnapshotRegionManifest;<a name="line.63"></a>
-<span class="sourceLineNo">064</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.SnapshotProtos.SnapshotRegionManifest.FamilyFiles;<a name="line.64"></a>
-<span class="sourceLineNo">065</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.SnapshotProtos.SnapshotRegionManifest.StoreFile;<a name="line.65"></a>
-<span class="sourceLineNo">066</span><a name="line.66"></a>
-<span class="sourceLineNo">067</span>/**<a name="line.67"></a>
-<span class="sourceLineNo">068</span> * Tracks file archiving and updates the hbase quota table.<a name="line.68"></a>
-<span class="sourceLineNo">069</span> */<a name="line.69"></a>
-<span class="sourceLineNo">070</span>@InterfaceAudience.Private<a name="line.70"></a>
-<span class="sourceLineNo">071</span>public class FileArchiverNotifierImpl implements FileArchiverNotifier {<a name="line.71"></a>
-<span class="sourceLineNo">072</span> private static final Log LOG = LogFactory.getLog(FileArchiverNotifierImpl.class);<a name="line.72"></a>
-<span class="sourceLineNo">073</span> private final Connection conn;<a name="line.73"></a>
-<span class="sourceLineNo">074</span> private final Configuration conf;<a name="line.74"></a>
-<span class="sourceLineNo">075</span> private final FileSystem fs;<a name="line.75"></a>
-<span class="sourceLineNo">076</span> private final TableName tn;<a name="line.76"></a>
-<span class="sourceLineNo">077</span> private final ReadLock readLock;<a name="line.77"></a>
-<span class="sourceLineNo">078</span> private final WriteLock writeLock;<a name="line.78"></a>
-<span class="sourceLineNo">079</span> private volatile long lastFullCompute = Long.MIN_VALUE;<a name="line.79"></a>
-<span class="sourceLineNo">080</span> private List<String> currentSnapshots = Collections.emptyList();<a name="line.80"></a>
-<span class="sourceLineNo">081</span> private static final Map<String,Object> NAMESPACE_LOCKS = new HashMap<>();<a name="line.81"></a>
-<span class="sourceLineNo">082</span><a name="line.82"></a>
-<span class="sourceLineNo">083</span> /**<a name="line.83"></a>
-<span class="sourceLineNo">084</span> * An Exception thrown when SnapshotSize updates to hbase:quota fail to be written.<a name="line.84"></a>
-<span class="sourceLineNo">085</span> */<a name="line.85"></a>
-<span class="sourceLineNo">086</span> @InterfaceAudience.Private<a name="line.86"></a>
-<span class="sourceLineNo">087</span> public static class QuotaSnapshotSizeSerializationException extends IOException {<a name="line.87"></a>
-<span class="sourceLineNo">088</span> private static final long serialVersionUID = 1L;<a name="line.88"></a>
-<span class="sourceLineNo">089</span><a name="line.89"></a>
-<span class="sourceLineNo">090</span> public QuotaSnapshotSizeSerializationException(String msg) {<a name="line.90"></a>
-<span class="sourceLineNo">091</span> super(msg);<a name="line.91"></a>
-<span class="sourceLineNo">092</span> }<a name="line.92"></a>
-<span class="sourceLineNo">093</span> }<a name="line.93"></a>
-<span class="sourceLineNo">094</span><a name="line.94"></a>
-<span class="sourceLineNo">095</span> public FileArchiverNotifierImpl(<a name="line.95"></a>
-<span class="sourceLineNo">096</span> Connection conn, Configuration conf, FileSystem fs, TableName tn) {<a name="line.96"></a>
-<span class="sourceLineNo">097</span> this.conn = conn;<a name="line.97"></a>
-<span class="sourceLineNo">098</span> this.conf = conf;<a name="line.98"></a>
-<span class="sourceLineNo">099</span> this.fs = fs;<a name="line.99"></a>
-<span class="sourceLineNo">100</span> this.tn = tn;<a name="line.100"></a>
-<span class="sourceLineNo">101</span> ReentrantReadWriteLock lock = new ReentrantReadWriteLock();<a name="line.101"></a>
-<span class="sourceLineNo">102</span> readLock = lock.readLock();<a name="line.102"></a>
-<span class="sourceLineNo">103</span> writeLock = lock.writeLock();<a name="line.103"></a>
-<span class="sourceLineNo">104</span> }<a name="line.104"></a>
-<span class="sourceLineNo">105</span><a name="line.105"></a>
-<span class="sourceLineNo">106</span> static synchronized Object getLockForNamespace(String namespace) {<a name="line.106"></a>
-<span class="sourceLineNo">107</span> return NAMESPACE_LOCKS.computeIfAbsent(namespace, (ns) -> new Object());<a name="line.107"></a>
-<span class="sourceLineNo">108</span> }<a name="line.108"></a>
-<span class="sourceLineNo">109</span><a name="line.109"></a>
-<span class="sourceLineNo">110</span> /**<a name="line.110"></a>
-<span class="sourceLineNo">111</span> * Returns a strictly-increasing measure of time extracted by {@link System#nanoTime()}.<a name="line.111"></a>
-<span class="sourceLineNo">112</span> */<a name="line.112"></a>
-<span class="sourceLineNo">113</span> long getLastFullCompute() {<a name="line.113"></a>
-<span class="sourceLineNo">114</span> return lastFullCompute;<a name="line.114"></a>
-<span class="sourceLineNo">115</span> }<a name="line.115"></a>
-<span class="sourceLineNo">116</span><a name="line.116"></a>
-<span class="sourceLineNo">117</span> @Override<a name="line.117"></a>
-<span class="sourceLineNo">118</span> public void addArchivedFiles(Set<Entry<String, Long>> fileSizes) throws IOException {<a name="line.118"></a>
-<span class="sourceLineNo">119</span> long start = System.nanoTime();<a name="line.119"></a>
-<span class="sourceLineNo">120</span> readLock.lock();<a name="line.120"></a>
-<span class="sourceLineNo">121</span> try {<a name="line.121"></a>
-<span class="sourceLineNo">122</span> // We want to catch the case where we got an archival request, but there was a full<a name="line.122"></a>
-<span class="sourceLineNo">123</span> // re-computation in progress that was blocking us. Most likely, the full computation is going<a name="line.123"></a>
-<span class="sourceLineNo">124</span> // to already include the changes we were going to make.<a name="line.124"></a>
-<span class="sourceLineNo">125</span> //<a name="line.125"></a>
-<span class="sourceLineNo">126</span> // Same as "start < lastFullCompute" but avoiding numeric overflow per the<a name="line.126"></a>
-<span class="sourceLineNo">127</span> // System.nanoTime() javadoc<a name="line.127"></a>
-<span class="sourceLineNo">128</span> if (lastFullCompute != Long.MIN_VALUE && start - lastFullCompute < 0) {<a name="line.128"></a>
-<span class="sourceLineNo">129</span> if (LOG.isTraceEnabled()) {<a name="line.129"></a>
-<span class="sourceLineNo">130</span> LOG.trace("A full computation was performed after this request was received."<a name="line.130"></a>
-<span class="sourceLineNo">131</span> + " Ignoring requested updates: " + fileSizes);<a name="line.131"></a>
-<span class="sourceLineNo">132</span> }<a name="line.132"></a>
-<span class="sourceLineNo">133</span> return;<a name="line.133"></a>
-<span class="sourceLineNo">134</span> }<a name="line.134"></a>
-<span class="sourceLineNo">135</span><a name="line.135"></a>
-<span class="sourceLineNo">136</span> if (LOG.isTraceEnabled()) {<a name="line.136"></a>
-<span class="sourceLineNo">137</span> LOG.trace("currentSnapshots: " + currentSnapshots + " fileSize: "+ fileSizes);<a name="line.137"></a>
-<span class="sourceLineNo">138</span> }<a name="line.138"></a>
-<span class="sourceLineNo">139</span><a name="line.139"></a>
-<span class="sourceLineNo">140</span> // Write increment to quota table for the correct snapshot. Only do this if we have snapshots<a name="line.140"></a>
-<span class="sourceLineNo">141</span> // and some files that were archived.<a name="line.141"></a>
-<span class="sourceLineNo">142</span> if (!currentSnapshots.isEmpty() && !fileSizes.isEmpty()) {<a name="line.142"></a>
-<span class="sourceLineNo">143</span> // We get back the files which no snapshot referenced (the files which will be deleted soon)<a name="line.143"></a>
-<span class="sourceLineNo">144</span> groupArchivedFiledBySnapshotAndRecordSize(currentSnapshots, fileSizes);<a name="line.144"></a>
-<span class="sourceLineNo">145</span> }<a name="line.145"></a>
-<span class="sourceLineNo">146</span> } finally {<a name="line.146"></a>
-<span class="sourceLineNo">147</span> readLock.unlock();<a name="line.147"></a>
-<span class="sourceLineNo">148</span> }<a name="line.148"></a>
-<span class="sourceLineNo">149</span> }<a name="line.149"></a>
-<span class="sourceLineNo">150</span><a name="line.150"></a>
-<span class="sourceLineNo">151</span> /**<a name="line.151"></a>
-<span class="sourceLineNo">152</span> * For each file in the map, this updates the first snapshot (lexicographic snapshot name) that<a name="line.152"></a>
-<span class="sourceLineNo">153</span> * references this file. The result of this computation is serialized to the quota table.<a name="line.153"></a>
-<span class="sourceLineNo">154</span> *<a name="line.154"></a>
-<span class="sourceLineNo">155</span> * @param snapshots A collection of HBase snapshots to group the files into<a name="line.155"></a>
-<span class="sourceLineNo">156</span> * @param fileSizes A map of file names to their sizes<a name="line.156"></a>
-<span class="sourceLineNo">157</span> */<a name="line.157"></a>
-<span class="sourceLineNo">158</span> void groupArchivedFiledBySnapshotAndRecordSize(<a name="line.158"></a>
-<span class="sourceLineNo">159</span> List<String> snapshots, Set<Entry<String, Long>> fileSizes) throws IOException {<a name="line.159"></a>
-<span class="sourceLineNo">160</span> // Make a copy as we'll modify it.<a name="line.160"></a>
-<span class="sourceLineNo">161</span> final Map<String,Long> filesToUpdate = new HashMap<>(fileSizes.size());<a name="line.161"></a>
-<span class="sourceLineNo">162</span> for (Entry<String,Long> entry : fileSizes) {<a name="line.162"></a>
-<span class="sourceLineNo">163</span> filesToUpdate.put(entry.getKey(), entry.getValue());<a name="line.163"></a>
-<span class="sourceLineNo">164</span> }<a name="line.164"></a>
-<span class="sourceLineNo">165</span> // Track the change in size to each snapshot<a name="line.165"></a>
-<span class="sourceLineNo">166</span> final Map<String,Long> snapshotSizeChanges = new HashMap<>();<a name="line.166"></a>
-<span class="sourceLineNo">167</span> for (String snapshot : snapshots) {<a name="line.167"></a>
-<span class="sourceLineNo">168</span> // For each file in `filesToUpdate`, check if `snapshot` refers to it.<a name="line.168"></a>
-<span class="sourceLineNo">169</span> // If `snapshot` does, remove it from `filesToUpdate` and add it to `snapshotSizeChanges`.<a name="line.169"></a>
-<span class="sourceLineNo">170</span> bucketFilesToSnapshot(snapshot, filesToUpdate, snapshotSizeChanges);<a name="line.170"></a>
-<span class="sourceLineNo">171</span> if (filesToUpdate.isEmpty()) {<a name="line.171"></a>
-<span class="sourceLineNo">172</span> // If we have no more files recently archived, we have nothing more to check<a name="line.172"></a>
-<span class="sourceLineNo">173</span> break;<a name="line.173"></a>
-<span class="sourceLineNo">174</span> }<a name="line.174"></a>
-<span class="sourceLineNo">175</span> }<a name="line.175"></a>
-<span class="sourceLineNo">176</span> // We have computed changes to the snapshot size, we need to record them.<a name="line.176"></a>
-<span class="sourceLineNo">177</span> if (!snapshotSizeChanges.isEmpty()) {<a name="line.177"></a>
-<span class="sourceLineNo">178</span> if (LOG.isTraceEnabled()) {<a name="line.178"></a>
-<span class="sourceLineNo">179</span> LOG.trace("Writing snapshot size changes for: " + snapshotSizeChanges);<a name="line.179"></a>
-<span class="sourceLineNo">180</span> }<a name="line.180"></a>
-<span class="sourceLineNo">181</span> persistSnapshotSizeChanges(snapshotSizeChanges);<a name="line.181"></a>
-<span class="sourceLineNo">182</span> }<a name="line.182"></a>
-<span class="sourceLineNo">183</span> }<a name="line.183"></a>
-<span class="sourceLineNo">184</span><a name="line.184"></a>
-<span class="sourceLineNo">185</span> /**<a name="line.185"></a>
-<span class="sourceLineNo">186</span> * For the given snapshot, find all files which this {@code snapshotName} references. After a file<a name="line.186"></a>
-<span class="sourceLineNo">187</span> * is found to be referenced by the snapshot, it is removed from {@code filesToUpdate} and<a name="line.187"></a>
-<span class="sourceLineNo">188</span> * {@code snapshotSizeChanges} is updated in concert.<a name="line.188"></a>
-<span class="sourceLineNo">189</span> *<a name="line.189"></a>
-<span class="sourceLineNo">190</span> * @param snapshotName The snapshot to check<a name="line.190"></a>
-<span class="sourceLineNo">191</span> * @param filesToUpdate A mapping of archived files to their size<a name="line.191"></a>
-<span class="sourceLineNo">192</span> * @param snapshotSizeChanges A mapping of snapshots and their change in size<a name="line.192"></a>
-<span class="sourceLineNo">193</span> */<a name="line.193"></a>
-<span class="sourceLineNo">194</span> void bucketFilesToSnapshot(<a name="line.194"></a>
-<span class="sourceLineNo">195</span> String snapshotName, Map<String,Long> filesToUpdate, Map<String,Long> snapshotSizeChanges)<a name="line.195"></a>
-<span class="sourceLineNo">196</span> throws IOException {<a name="line.196"></a>
-<span class="sourceLineNo">197</span> // A quick check to avoid doing work if the caller unnecessarily invoked this method.<a name="line.197"></a>
-<span class="sourceLineNo">198</span> if (filesToUpdate.isEmpty()) {<a name="line.198"></a>
-<span class="sourceLineNo">199</span> return;<a name="line.199"></a>
-<span class="sourceLineNo">200</span> }<a name="line.200"></a>
-<span class="sourceLineNo">201</span><a name="line.201"></a>
-<span class="sourceLineNo">202</span> Path snapshotDir = SnapshotDescriptionUtils.getCompletedSnapshotDir(<a name="line.202"></a>
-<span class="sourceLineNo">203</span> snapshotName, FSUtils.getRootDir(conf));<a name="line.203"></a>
-<span class="sourceLineNo">204</span> SnapshotDescription sd = SnapshotDescriptionUtils.readSnapshotInfo(fs, snapshotDir);<a name="line.204"></a>
-<span class="sourceLineNo">205</span> SnapshotManifest manifest = SnapshotManifest.open(conf, fs, snapshotDir, sd);<a name="line.205"></a>
-<span class="sourceLineNo">206</span> // For each region referenced by the snapshot<a name="line.206"></a>
-<span class="sourceLineNo">207</span> for (SnapshotRegionManifest rm : manifest.getRegionManifests()) {<a name="line.207"></a>
-<span class="sourceLineNo">208</span> // For each column family in this region<a name="line.208"></a>
-<span class="sourceLineNo">209</span> for (FamilyFiles ff : rm.getFamilyFilesList()) {<a name="line.209"></a>
-<span class="sourceLineNo">210</span> // And each store file in that family<a name="line.210"></a>
-<span class="sourceLineNo">211</span> for (StoreFile sf : ff.getStoreFilesList()) {<a name="line.211"></a>
-<span class="sourceLineNo">212</span> Long valueOrNull = filesToUpdate.remove(sf.getName());<a name="line.212"></a>
-<span class="sourceLineNo">213</span> if (valueOrNull != null) {<a name="line.213"></a>
-<span class="sourceLineNo">214</span> // This storefile was recently archived, we should update this snapshot with its size<a name="line.214"></a>
-<span class="sourceLineNo">215</span> snapshotSizeChanges.merge(snapshotName, valueOrNull, Long::sum);<a name="line.215"></a>
-<span class="sourceLineNo">216</span> }<a name="line.216"></a>
-<span class="sourceLineNo">217</span> // Short-circuit, if we have no more files that were archived, we don't need to iterate<a name="line.217"></a>
-<span class="sourceLineNo">218</span> // over the rest of the snapshot.<a name="line.218"></a>
-<span class="sourceLineNo">219</span> if (filesToUpdate.isEmpty()) {<a name="line.219"></a>
-<span class="sourceLineNo">220</span> return;<a name="line.220"></a>
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-<span class="sourceLineNo">222</span> }<a name="line.222"></a>
-<span class="sourceLineNo">223</span> }<a name="line.223"></a>
-<span class="sourceLineNo">224</span> }<a name="line.224"></a>
-<span class="sourceLineNo">225</span> }<a name="line.225"></a>
-<span class="sourceLineNo">226</span><a name="line.226"></a>
-<span class="sourceLineNo">227</span> /**<a name="line.227"></a>
-<span class="sourceLineNo">228</span> * Reads the current size for each snapshot to update, generates a new update based on that value,<a name="line.228"></a>
-<span class="sourceLineNo">229</span> * and then writes the new update.<a name="line.229"></a>
-<span class="sourceLineNo">230</span> *<a name="line.230"></a>
-<span class="sourceLineNo">231</span> * @param snapshotSizeChanges A map of snapshot name to size change<a name="line.231"></a>
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-<span class="sourceLineNo">233</span> void persistSnapshotSizeChanges(Map<String,Long> snapshotSizeChanges) throws IOException {<a name="line.233"></a>
-<span class="sourceLineNo">234</span> try (Table quotaTable = conn.getTable(QuotaTableUtil.QUOTA_TABLE_NAME)) {<a name="line.234"></a>
-<span class="sourceLineNo">235</span> // Create a list (with a more typical ordering implied)<a name="line.235"></a>
-<span class="sourceLineNo">236</span> final List<Entry<String,Long>> snapshotSizeEntries = new ArrayList<>(<a name="line.236"></a>
-<span class="sourceLineNo">237</span> snapshotSizeChanges.entrySet());<a name="line.237"></a>
-<span class="sourceLineNo">238</span> // Create the Gets for each snapshot we need to update<a name="line.238"></a>
-<span class="sourceLineNo">239</span> final List<Get> snapshotSizeGets = snapshotSizeEntries.stream()<a name="line.239"></a>
-<span class="sourceLineNo">240</span> .map((e) -> QuotaTableUtil.makeGetForSnapshotSize(tn, e.getKey()))<a name="line.240"></a>
-<span class="sourceLineNo">241</span> .collect(Collectors.toList());<a name="line.241"></a>
-<span class="sourceLineNo">242</span> final Iterator<Entry<String,Long>> iterator = snapshotSizeEntries.iterator();<a name="line.242"></a>
-<span class="sourceLineNo">243</span> // A List to store each Put we'll create from the Get's we retrieve<a name="line.243"></a>
-<span class="sourceLineNo">244</span> final List<Put> updates = new ArrayList<>(snapshotSizeEntries.size());<a name="line.244"></a>
-<span class="sourceLineNo">245</span><a name="line.245"></a>
-<span class="sourceLineNo">246</span> // TODO Push this down to the RegionServer with a coprocessor:<a name="line.246"></a>
-<span class="sourceLineNo">247</span> //<a name="line.247"></a>
-<span class="sourceLineNo">248</span> // We would really like to piggy-back on the row-lock already being grabbed<a name="line.248"></a>
-<span class="sourceLineNo">249</span> // to handle the update of the row in the quota table. However, because the value<a name="line.249"></a>
-<span class="sourceLineNo">250</span> // is a serialized protobuf, the standard Increment API doesn't work for us. With a CP, we<a name="line.250"></a>
-<span class="sourceLineNo">251</span> // can just send the size deltas to the RS and atomically update the serialized PB object<a name="line.251"></a>
-<span class="sourceLineNo">252</span> // while relying on the row-lock for synchronization.<a name="line.252"></a>
-<span class="sourceLineNo">253</span> //<a name="line.253"></a>
-<span class="sourceLineNo">254</span> // Synchronizing on the namespace string is a "minor smell" but passable as this is<a name="line.254"></a>
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-<span class="sourceLineNo">498</span> // For each region referenced by the snapshot<a name="line.498"></a>
-<span class="sourceLineNo">499</span> for (SnapshotRegionManifest rm : manifest.getRegionManifests()) {<a name="line.499"></a>
-<span class="sourceLineNo">500</span> StoreFileReference regionReference = new StoreFileReference(<a name="line.500"></a>
-<span class="sourceLineNo">501</span> ProtobufUtil.toRegionInfo(rm.getRegionInfo()).getEncodedName());<a name="line.501"></a>
-<span class="sourceLineNo">502</span><a name="line.502"></a>
-<span class="sourceLineNo">503</span> // For each column family in this region<a name="line.503"></a>
-<span class="sourceLineNo">504</span> for (FamilyFiles ff : rm.getFamilyFilesList()) {<a name="line.504"></a>
-<span class="sourceLineNo">505</span> final String familyName = ff.getFamilyName().toStringUtf8();<a name="line.505"></a>
-<span class="sourceLineNo">506</span> // And each store file in that family<a name="line.506"></a>
-<span class="sourceLineNo">507</span> for (StoreFile sf : ff.getStoreFilesList()) {<a name="line.507"></a>
-<span class="sourceLineNo">508</span> String storeFileName = sf.getName();<a name="line.508"></a>
-<span class="sourceLineNo">509</span> // A snapshot only "inherits" a files size if it uniquely refers to it (no table<a name="line.509"></a>
-<span class="sourceLineNo">510</span> // and no other snapshot references it).<a name="line.510"></a>
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-<span class="sourceLineNo">516</span> // Only add this Region reference if we retained any files.<a name="line.516"></a>
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-<span class="sourceLineNo">531</span> .stream()<a name="line.531"></a>
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-<span class="sourceLineNo">606</span> void addFamilyStoreFile(String family, String storeFileName) {<a name="line.606"></a>
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-<span class="sourceLineNo">612</span> return new HashCodeBuilder().append(regionName).append(familyToFiles).toHashCode();<a name="line.612"></a>
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-<span class="sourceLineNo">623</span> StoreFileReference other = (StoreFileReference) o;<a name="line.623"></a>
-<span class="sourceLineNo">624</span> return regionName.equals(other.regionName) && familyToFiles.equals(other.familyToFiles);<a name="line.624"></a>
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-<span class="sourceLineNo">627</span> @Override<a name="line.627"></a>
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-<span class="sourceLineNo">629</span> StringBuilder sb = new StringBuilder();<a name="line.629"></a>
-<span class="sourceLineNo">630</span> return sb.append("StoreFileReference[region=").append(regionName).append(", files=")<a name="line.630"></a>
-<span class="sourceLineNo">631</span> .append(familyToFiles).append("]").toString();<a name="line.631"></a>
-<span class="sourceLineNo">632</span> }<a name="line.632"></a>
-<span class="sourceLineNo">633</span> }<a name="line.633"></a>
-<span class="sourceLineNo">634</span>}<a name="line.634"></a>
+<span class="sourceLineNo">037</span>import org.apache.commons.lang3.builder.HashCodeBuilder;<a name="line.37"></a>
+<span class="sourceLineNo">038</span>import org.apache.hadoop.conf.Configuration;<a name="line.38"></a>
+<span class="sourceLineNo">039</span>import org.apache.hadoop.fs.FileStatus;<a name="line.39"></a>
+<span class="sourceLineNo">040</span>import org.apache.hadoop.fs.FileSystem;<a name="line.40"></a>
+<span class="sourceLineNo">041</span>import org.apache.hadoop.fs.Path;<a name="line.41"></a>
+<span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.TableName;<a name="line.42"></a>
+<span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.client.Connection;<a name="line.43"></a>
+<span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.client.Get;<a name="line.44"></a>
+<span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.client.Put;<a name="line.45"></a>
+<span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.client.Result;<a name="line.46"></a>
+<span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.client.Table;<a name="line.47"></a>
+<span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.snapshot.SnapshotDescriptionUtils;<a name="line.48"></a>
+<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.snapshot.SnapshotManifest;<a name="line.49"></a>
+<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.util.FSUtils;<a name="line.50"></a>
+<span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.util.HFileArchiveUtil;<a name="line.51"></a>
+<span class="sourceLineNo">052</span>import org.apache.hadoop.util.StringUtils;<a name="line.52"></a>
+<span class="sourceLineNo">053</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.53"></a>
+<span class="sourceLineNo">054</span><a name="line.54"></a>
+<span class="sourceLineNo">055</span>import org.slf4j.Logger;<a name="line.55"></a>
+<span class="sourceLineNo">056</span>import org.slf4j.LoggerFactory;<a name="line.56"></a>
+<span class="sourceLineNo">057</span><a name="line.57"></a>
+<span class="sourceLineNo">058</span>import org.apache.hbase.thirdparty.com.google.common.collect.HashMultimap;<a name="line.58"></a>
+<span class="sourceLineNo">059</span>import org.apache.hbase.thirdparty.com.google.common.collect.Multimap;<a name="line.59"></a>
+<span class="sourceLineNo">060</span>import org.apache.hbase.thirdparty.com.google.protobuf.InvalidProtocolBufferException;<a name="line.60"></a>
+<span class="sourceLineNo">061</span><a name="line.61"></a>
+<span class="sourceLineNo">062</span>import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.62"></a>
+<span class="sourceLineNo">063</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.SnapshotProtos.SnapshotDescription;<a name="line.63"></a>
+<span class="sourceLineNo">064</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.SnapshotProtos.SnapshotRegionManifest;<a name="line.64"></a>
+<span class="sourceLineNo">065</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.SnapshotProtos.SnapshotRegionManifest.FamilyFiles;<a name="line.65"></a>
+<span class="sourceLineNo">066</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.SnapshotProtos.SnapshotRegionManifest.StoreFile;<a name="line.66"></a>
+<span class="sourceLineNo">067</span><a name="line.67"></a>
+<span class="sourceLineNo">068</span>/**<a name="line.68"></a>
+<span class="sourceLineNo">069</span> * Tracks file archiving and updates the hbase quota table.<a name="line.69"></a>
+<span class="sourceLineNo">070</span> */<a name="line.70"></a>
+<span class="sourceLineNo">071</span>@InterfaceAudience.Private<a name="line.71"></a>
+<span class="sourceLineNo">072</span>public class FileArchiverNotifierImpl implements FileArchiverNotifier {<a name="line.72"></a>
+<span class="sourceLineNo">073</span> private static final Logger LOG = LoggerFactory.getLogger(FileArchiverNotifierImpl.class);<a name="line.73"></a>
+<span class="sourceLineNo">074</span> private final Connection conn;<a name="line.74"></a>
+<span class="sourceLineNo">075</span> private final Configuration conf;<a name="line.75"></a>
+<span class="sourceLineNo">076</span> private final FileSystem fs;<a name="line.76"></a>
+<span class="sourceLineNo">077</span> private final TableName tn;<a name="line.77"></a>
+<span class="sourceLineNo">078</span> private final ReadLock readLock;<a name="line.78"></a>
+<span class="sourceLineNo">079</span> private final WriteLock writeLock;<a name="line.79"></a>
+<span class="sourceLineNo">080</span> private volatile long lastFullCompute = Long.MIN_VALUE;<a name="line.80"></a>
+<span class="sourceLineNo">081</span> private List<String> currentSnapshots = Collections.emptyList();<a name="line.81"></a>
+<span class="sourceLineNo">082</span> private static final Map<String,Object> NAMESPACE_LOCKS = new HashMap<>();<a name="line.82"></a>
+<span class="sourceLineNo">083</span><a name="line.83"></a>
+<span class="sourceLineNo">084</span> /**<a name="line.84"></a>
+<span class="sourceLineNo">085</span> * An Exception thrown when SnapshotSize updates to hbase:quota fail to be written.<a name="line.85"></a>
+<span class="sourceLineNo">086</span> */<a name="line.86"></a>
+<span class="sourceLineNo">087</span> @InterfaceAudience.Private<a name="line.87"></a>
+<span class="sourceLineNo">088</span> public static class QuotaSnapshotSizeSerializationException extends IOException {<a name="line.88"></a>
+<span class="sourceLineNo">089</span> private static final long serialVersionUID = 1L;<a name="line.89"></a>
+<span class="sourceLineNo">090</span><a name="line.90"></a>
+<span class="sourceLineNo">091</span> public QuotaSnapshotSizeSerializationException(String msg) {<a name="line.91"></a>
+<span class="sourceLineNo">092</span> super(msg);<a name="line.92"></a>
+<span class="sourceLineNo">093</span> }<a name="line.93"></a>
+<span class="sourceLineNo">094</span> }<a name="line.94"></a>
+<span class="sourceLineNo">095</span><a name="line.95"></a>
+<span class="sourceLineNo">096</span> public FileArchiverNotifierImpl(<a name="line.96"></a>
+<span class="sourceLineNo">097</span> Connection conn, Configuration conf, FileSystem fs, TableName tn) {<a name="line.97"></a>
+<span class="sourceLineNo">098</span> this.conn = conn;<a name="line.98"></a>
+<span class="sourceLineNo">099</span> this.conf = conf;<a name="line.99"></a>
+<span class="sourceLineNo">100</span> this.fs = fs;<a name="line.100"></a>
+<span class="sourceLineNo">101</span> this.tn = tn;<a name="line.101"></a>
+<span class="sourceLineNo">102</span> ReentrantReadWriteLock lock = new ReentrantReadWriteLock();<a name="line.102"></a>
+<span class="sourceLineNo">103</span> readLock = lock.readLock();<a name="line.103"></a>
+<span class="sourceLineNo">104</span> writeLock = lock.writeLock();<a name="line.104"></a>
+<span class="sourceLineNo">105</span> }<a name="line.105"></a>
+<span class="sourceLineNo">106</span><a name="line.106"></a>
+<span class="sourceLineNo">107</span> static synchronized Object getLockForNamespace(String namespace) {<a name="line.107"></a>
+<span class="sourceLineNo">108</span> return NAMESPACE_LOCKS.computeIfAbsent(namespace, (ns) -> new Object());<a name="line.108"></a>
+<span class="sourceLineNo">109</span> }<a name="line.109"></a>
+<span class="sourceLineNo">110</span><a name="line.110"></a>
+<span class="sourceLineNo">111</span> /**<a name="line.111"></a>
+<span class="sourceLineNo">112</span> * Returns a strictly-increasing measure of time extracted by {@link System#nanoTime()}.<a name="line.112"></a>
+<span class="sourceLineNo">113</span> */<a name="line.113"></a>
+<span class="sourceLineNo">114</span> long getLastFullCompute() {<a name="line.114"></a>
+<span class="sourceLineNo">115</span> return lastFullCompute;<a name="line.115"></a>
+<span class="sourceLineNo">116</span> }<a name="line.116"></a>
+<span class="sourceLineNo">117</span><a name="line.117"></a>
+<span class="sourceLineNo">118</span> @Override<a name="line.118"></a>
+<span class="sourceLineNo">119</span> public void addArchivedFiles(Set<Entry<String, Long>> fileSizes) throws IOException {<a name="line.119"></a>
+<span class="sourceLineNo">120</span> long start = System.nanoTime();<a name="line.120"></a>
+<span class="sourceLineNo">121</span> readLock.lock();<a name="line.121"></a>
+<span class="sourceLineNo">122</span> try {<a name="line.122"></a>
+<span class="sourceLineNo">123</span> // We want to catch the case where we got an archival request, but there was a full<a name="line.123"></a>
+<span class="sourceLineNo">124</span> // re-computation in progress that was blocking us. Most likely, the full computation is going<a name="line.124"></a>
+<span class="sourceLineNo">125</span> // to already include the changes we were going to make.<a name="line.125"></a>
+<span class="sourceLineNo">126</span> //<a name="line.126"></a>
+<span class="sourceLineNo">127</span> // Same as "start < lastFullCompute" but avoiding numeric overflow per the<a name="line.127"></a>
+<span class="sourceLineNo">128</span> // System.nanoTime() javadoc<a name="line.128"></a>
+<span class="sourceLineNo">129</span> if (lastFullCompute != Long.MIN_VALUE && start - lastFullCompute < 0) {<a name="line.129"></a>
+<span class="sourceLineNo">130</span> if (LOG.isTraceEnabled()) {<a name="line.130"></a>
+<span class="sourceLineNo">131</span> LOG.trace("A full computation was performed after this request was received."<a name="line.131"></a>
+<span class="sourceLineNo">132</span> + " Ignoring requested updates: " + fileSizes);<a name="line.132"></a>
+<span class="sourceLineNo">133</span> }<a name="line.133"></a>
+<span class="sourceLineNo">134</span> return;<a name="line.134"></a>
+<span class="sourceLineNo">135</span> }<a name="line.135"></a>
+<span class="sourceLineNo">136</span><a name="line.136"></a>
+<span class="sourceLineNo">137</span> if (LOG.isTraceEnabled()) {<a name="line.137"></a>
+<span class="sourceLineNo">138</span> LOG.trace("currentSnapshots: " + currentSnapshots + " fileSize: "+ fileSizes);<a name="line.138"></a>
+<span class="sourceLineNo">139</span> }<a name="line.139"></a>
+<span class="sourceLineNo">140</span><a name="line.140"></a>
+<span class="sourceLineNo">141</span> // Write increment to quota table for the correct snapshot. Only do this if we have snapshots<a name="line.141"></a>
+<span class="sourceLineNo">142</span> // and some files that were archived.<a name="line.142"></a>
+<span class="sourceLineNo">143</span> if (!currentSnapshots.isEmpty() && !fileSizes.isEmpty()) {<a name="line.143"></a>
+<span class="sourceLineNo">144</span> // We get back the files which no snapshot referenced (the files which will be deleted soon)<a name="line.144"></a>
+<span class="sourceLineNo">145</span> groupArchivedFiledBySnapshotAndRecordSize(currentSnapshots, fileSizes);<a name="line.145"></a>
+<span class="sourceLineNo">146</span> }<a name="line.146"></a>
+<span class="sourceLineNo">147</span> } finally {<a name="line.147"></a>
+<span class="sourceLineNo">148</span> readLock.unlock();<a name="line.148"></a>
+<span class="sourceLineNo">149</span> }<a name="line.149"></a>
+<span class="sourceLineNo">150</span> }<a name="line.150"></a>
+<span class="sourceLineNo">151</span><a name="line.151"></a>
+<span class="sourceLineNo">152</span> /**<a name="line.152"></a>
+<span class="sourceLineNo">153</span> * For each file in the map, this updates the first snapshot (lexicographic snapshot name) that<a name="line.153"></a>
+<span class="sourceLineNo">154</span> * references this file. The result of this computation is serialized to the quota table.<a name="line.154"></a>
+<span class="sourceLineNo">155</span> *<a name="line.155"></a>
+<span class="sourceLineNo">156</span> * @param snapshots A collection of HBase snapshots to group the files into<a name="line.156"></a>
+<span class="sourceLineNo">157</span> * @param fileSizes A map of file names to their sizes<a name="line.157"></a>
+<span class="sourceLineNo">158</span> */<a name="line.158"></a>
+<span class="sourceLineNo">159</span> void groupArchivedFiledBySnapshotAndRecordSize(<a name="line.159"></a>
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+<span class="sourceLineNo">161</span> // Make a copy as we'll modify it.<a name="line.161"></a>
+<span class="sourceLineNo">162</span> final Map<String,Long> filesToUpdate = new HashMap<>(fileSizes.size());<a name="line.162"></a>
+<span class="sourceLineNo">163</span> for (Entry<String,Long> entry : fileSizes) {<a name="line.163"></a>
+<span class="sourceLineNo">164</span> filesToUpdate.put(entry.getKey(), entry.getValue());<a name="line.164"></a>
+<span class="sourceLineNo">165</span> }<a name="line.165"></a>
+<span class="sourceLineNo">166</span> // Track the change in size to each snapshot<a name="line.166"></a>
+<span class="sourceLineNo">167</span> final Map<String,Long> snapshotSizeChanges = new HashMap<>();<a name="line.167"></a>
+<span class="sourceLineNo">168</span> for (String snapshot : snapshots) {<a name="line.168"></a>
+<span class="sourceLineNo">169</span> // For each file in `filesToUpdate`, check if `snapshot` refers to it.<a name="line.169"></a>
+<span class="sourceLineNo">170</span> // If `snapshot` does, remove it from `filesToUpdate` and add it to `snapshotSizeChanges`.<a name="line.170"></a>
+<span class="sourceLineNo">171</span> bucketFilesToSnapshot(snapshot, filesToUpdate, snapshotSizeChanges);<a name="line.171"></a>
+<span class="sourceLineNo">172</span> if (filesToUpdate.isEmpty()) {<a name="line.172"></a>
+<span class="sourceLineNo">173</span> // If we have no more files recently archived, we have nothing more to check<a name="line.173"></a>
+<span class="sourceLineNo">174</span> break;<a name="line.174"></a>
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+<span class="sourceLineNo">179</span> if (LOG.isTraceEnabled()) {<a name="line.179"></a>
+<span class="sourceLineNo">180</span> LOG.trace("Writing snapshot size changes for: " + snapshotSizeChanges);<a name="line.180"></a>
+<span class="sourceLineNo">181</span> }<a name="line.181"></a>
+<span class="sourceLineNo">182</span> persistSnapshotSizeChanges(snapshotSizeChanges);<a name="line.182"></a>
+<span class="sourceLineNo">183</span> }<a name="line.183"></a>
+<span class="sourceLineNo">184</span> }<a name="line.184"></a>
+<span class="sourceLineNo">185</span><a name="line.185"></a>
+<span class="sourceLineNo">186</span> /**<a name="line.186"></a>
+<span class="sourceLineNo">187</span> * For the given snapshot, find all files which this {@code snapshotName} references. After a file<a name="line.187"></a>
+<span class="sourceLineNo">188</span> * is found to be referenced by the snapshot, it is removed from {@code filesToUpdate} and<a name="line.188"></a>
+<span class="sourceLineNo">189</span> * {@code snapshotSizeChanges} is updated in concert.<a name="line.189"></a>
+<span class="sourceLineNo">190</span> *<a name="line.190"></a>
+<span class="sourceLineNo">191</span> * @param snapshotName The snapshot to check<a name="line.191"></a>
+<span class="sourceLineNo">192</span> * @param filesToUpdate A mapping of archived files to their size<a name="line.192"></a>
+<span class="sourceLineNo">193</span> * @param snapshotSizeChanges A mapping of snapshots and their change in size<a name="line.193"></a>
+<span class="sourceLineNo">194</span> */<a name="line.194"></a>
+<span class="sourceLineNo">195</span> void bucketFilesToSnapshot(<a name="line.195"></a>
+<span class="sourceLineNo">196</span> String snapshotName, Map<String,Long> filesToUpdate, Map<String,Long> snapshotSizeChanges)<a name="line.196"></a>
+<span class="sourceLineNo">197</span> throws IOException {<a name="line.197"></a>
+<span class="sourceLineNo">198</span> // A quick check to avoid doing work if the caller unnecessarily invoked this method.<a name="line.198"></a>
+<span class="sourceLineNo">199</span> if (filesToUpdate.isEmpty()) {<a name="line.199"></a>
+<span class="sourceLineNo">200</span> return;<a name="line.200"></a>
+<span class="sourceLineNo">201</span> }<a name="line.201"></a>
+<span class="sourceLineNo">202</span><a name="line.202"></a>
+<span class="sourceLineNo">203</span> Path snapshotDir = SnapshotDescriptionUtils.getCompletedSnapshotDir(<a name="line.203"></a>
+<span class="sourceLineNo">204</span> snapshotName, FSUtils.getRootDir(conf));<a name="line.204"></a>
+<span class="sourceLineNo">205</span> SnapshotDescription sd = SnapshotDescriptionUtils.readSnapshotInfo(fs, snapshotDir);<a name="line.205"></a>
+<span class="sourceLineNo">206</span> SnapshotManifest manifest = SnapshotManifest.open(conf, fs, snapshotDir, sd);<a name="line.206"></a>
+<span class="sourceLineNo">207</span> // For each region referenced by the snapshot<a name="line.207"></a>
+<span class="sourceLineNo">208</span> for (SnapshotRegionManifest rm : manifest.getRegionManifests()) {<a name="line.208"></a>
+<span class="sourceLineNo">209</span> // For each column family in this region<a name="line.209"></a>
+<span class="sourceLineNo">210</span> for (FamilyFiles ff : rm.getFamilyFilesList()) {<a name="line.210"></a>
+<span class="sourceLineNo">211</span> // And each store file in that family<a name="line.211"></a>
+<span class="sourceLineNo">212</span> for (StoreFile sf : ff.getStoreFilesList()) {<a name="line.212"></a>
+<span class="sourceLineNo">213</span> Long valueOrNull = filesToUpdate.remove(sf.getName());<a name="line.213"></a>
+<span class="sourceLineNo">214</span> if (valueOrNull != null) {<a name="line.214"></a>
+<span class="sourceLineNo">215</span> // This storefile was recently archived, we should update this snapshot with its size<a name="line.215"></a>
+<span class="sourceLineNo">216</span> snapshotSizeChanges.merge(snapshotName, valueOrNull, Long::sum);<a name="line.216"></a>
+<span class="sourceLineNo">217</span> }<a name="line.217"></a>
+<span class="sourceLineNo">218</span> // Short-circuit, if we have no more files that were archived, we don't need to iterate<a name="line.218"></a>
+<span class="sourceLineNo">219</span> // over the rest of the snapshot.<a name="line.219"></a>
+<span class="sourceLineNo">220</span> if (filesToUpdate.isEmpty()) {<a name="line.220"></a>
+<span class="sourceLineNo">221</span> return;<a name="line.221"></a>
+<span class="sourceLineNo">222</span> }<a name="line.222"></a>
+<span class="sourceLineNo">223</span> }<a name="line.223"></a>
+<span class="sourceLineNo">224</span> }<a name="line.224"></a>
+<span class="sourceLineNo">225</span> }<a name="line.225"></a>
+<span class="sourceLineNo">226</span> }<a name="line.226"></a>
+<span class="sourceLineNo">227</span><a name="line.227"></a>
+<span class="sourceLineNo">228</span> /**<a name="line.228"></a>
+<span class="sourceLineNo">229</span> * Reads the current size for each snapshot to update, generates a new update based on that value,<a name="line.229"></a>
+<span class="sourceLineNo">230</span> * and then writes the new update.<a name="line.230"></a>
+<span class="sourceLineNo">231</span> *<a name="line.231"></a>
+<span class="sourceLineNo">232</span> * @param snapshotSizeChanges A map of snapshot name to size change<a name="line.232"></a>
+<span class="sourceLineNo">233</span> */<a name="line.233"></a>
+<span class="sourceLineNo">234</span> void persistSnapshotSizeChanges(Map<String,Long> snapshotSizeChanges) throws IOException {<a name="line.234"></a>
+<span class="sourceLineNo">235</span> try (Table quotaTable = conn.getTable(QuotaTableUtil.QUOTA_TABLE_NAME)) {<a name="line.235"></a>
+<span class="sourceLineNo">236</span> // Create a list (with a more typical ordering implied)<a name="line.236"></a>
+<span class="sourceLineNo">237</span> final List<Entry<String,Long>> snapshotSizeEntries = new ArrayList<>(<a name="line.237"></a>
+<span class="sourceLineNo">238</span> snapshotSizeChanges.entrySet());<a name="line.238"></a>
+<span class="sourceLineNo">239</span> // Create the Gets for each snapshot we need to update<a name="line.239"></a>
+<span class="sourceLineNo">240</span> final List<Get> snapshotSizeGets = snapshotSizeEntries.stream()<a name="line.240"></a>
+<span class="sourceLineNo">241</span> .map((e) -> QuotaTableUtil.makeGetForSnapshotSize(tn, e.getKey()))<a name="line.241"></a>
+<span class="sourceLineNo">242</span> .collect(Collectors.toList());<a name="line.242"></a>
+<span class="sourceLineNo">243</span> final Iterator<Entry<String,Long>> iterator = snapshotSizeEntries.iterator();<a name="line.243"></a>
+<span class="sourceLineNo">244</span> // A List to store each Put we'll create from the Get's we retrieve<a name="line.244"></a>
+<span class="sourceLineNo">245</span> final List<Put> updates = new ArrayList<>(snapshotSizeEntries.size());<a name="line.245"></a>
+<span class="sourceLineNo">246</span><a name="line.246"></a>
+<span class="sourceLineNo">247</span> // TODO Push this down to the RegionServer with a coprocessor:<a name="line.247"></a>
+<span class="sourceLineNo">248</span> //<a name="line.248"></a>
+<span class="sourceLineNo">249</span> // We would really like to piggy-back on the row-lock already being grabbed<a name="line.249"></a>
+<span class="sourceLineNo">250</span> // to handle the update of the row in the quota table. However, because the value<a name="line.250"></a>
+<span class="sourceLineNo">251</span> // is a serialized protobuf, the standard Increment API doesn't work for us. With a CP, we<a name="line.251"></a>
+<span class="sourceLineNo">252</span> // can just send the size deltas to the RS and atomically update the serialized PB object<a name="line.252"></a>
+<span class="sourceLineNo">253</span> // while relying on the row-lock for synchronization.<a name="line.253"></a>
+<span class="sourceLineNo">254</span> //<a name="line.254"></a>
+<span class="sourceLineNo">255</span> // Synchronizing on the namespace string is a "minor smell" but passable as this is<a name="line.255"></a>
+<span class="sourceLineNo">256</span> // only invoked via a single caller (the active Master). Using the namespace name lets us<a name="line.256"></a>
+<span class="sourceLineNo">257</span> // have some parallelism without worry of on caller seeing stale data from the quota table.<a name="line.257"></a>
+<span class="sourceLineNo">258</span> synchronized (getLockForNamespace(tn.getNamespaceAsString())) {<a name="line.258"></a>
+<span class="sourceLineNo">259</span> final Result[] existingSnapshotSizes = quotaTable.get(snapshotSizeGets);<a name="line.259"></a>
+<span class="sourceLineNo">260</span> long totalSizeChange = 0;<a name="line.260"></a>
+<span class="sourceLineNo">261</span> // Read the current size values (if they exist) to generate the new value<a name="line.261"></a>
+<span class="sourceLineNo">262</span> for (Result result : existingSnapshotSizes) {<a name="line.262"></a>
+<span class="sourceLineNo">263</span> Entry<String,Long> entry = iterator.next();<a name="line.263"></a>
+<span class="sourceLineNo">264</span> String snapshot = entry.getKey();<a name="line.264"></a>
+<span class="sourceLineNo">265</span> Long size = entry.getValue();<a name="line.265"></a>
+<span class="sourceLineNo">266</span> // Track the total size change for the namespace this table belongs in<a name="line.266"></a>
+<span class="sourceLineNo">267</span> totalSizeChange += size;<a name="line.267"></a>
+<span class="sourceLineNo">268</span> // Get the size of the previous value (or zero)<a name="line.268"></a>
+<span class="sourceLineNo">269</span> long previousSize = getSnapshotSizeFromResult(result);<a name="line.269"></a>
+<span class="sourceLineNo">270</span> // Create an update. A file was archived from the table, so the table's size goes<a name="line.270"></a>
+<span class="sourceLineNo">271</span> // down, but the snapshot's size goes up.<a name="line.271"></a>
+<span class="sourceLineNo">272</span> updates.add(QuotaTableUtil.createPutForSnapshotSize(tn, snapshot, previousSize + size));<a name="line.272"></a>
+<span class="sourceLineNo">273</span> }<a name="line.273"></a>
+<span class="sourceLineNo">274</span><a name="line.274"></a>
+<span class="sourceLineNo">275</span> // Create an update for the summation of all snapshots in the namespace<a name="line.275"></a>
+<span class="sourceLineNo">276</span> if (totalSizeChange != 0) {<a name="line.276"></a>
+<span class="sourceLineNo">277</span> long previousSize = getPreviousNamespaceSnapshotSize(<a name="line.277"></a>
+<span class="sourceLineNo">278</span> quotaTable, tn.getNamespaceAsString());<a name="line.278"></a>
+<span class="sourceLineNo">279</span> updates.add(QuotaTableUtil.createPutForNamespaceSnapshotSize(<a name="line.279"></a>
+<span class="sourceLineNo">280</span> tn.getNamespaceAsString(), previousSize + totalSizeChange));<a name="line.280"></a>
+<span class="sourceLineNo">281</span> }<a name="line.281"></a>
+<span class="sourceLineNo">282</span><a name="line.282"></a>
+<span class="sourceLineNo">283</span> // Send all of the quota table updates in one batch.<a name="line.283"></a>
+<span class="sourceLineNo">284</span> List<Object> failures = new ArrayList<>();<a name="line.284"></a>
+<span class="sourceLineNo">285</span> final Object[] results = new Object[updates.size()];<a name="line.285"></a>
+<span class="sourceLineNo">286</span> quotaTable.batch(updates, results);<a name="line.286"></a>
+<span class="sourceLineNo">287</span> for (Object result : results) {<a name="line.287"></a>
+<span class="sourceLineNo">288</span> // A null result is an error condition (all RPC attempts failed)<a name="line.288"></a>
+<span class="sourceLineNo">289</span> if (!(result instanceof Result)) {<a name="line.289"></a>
+<span class="sourceLineNo">290</span> failures.add(result);<a name="line.290"></a>
+<span class="sourceLineNo">291</span> }<a name="line.291"></a>
+<span class="sourceLineNo">292</span> }<a name="line.292"></a>
+<span class="sourceLineNo">293</span> // Propagate a failure if any updates failed<a name="line.293"></a>
+<span class="sourceLineNo">294</span> if (!failures.isEmpty()) {<a name="line.294"></a>
+<span class="sourceLineNo">295</span>
<TRUNCATED>