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Posted to commits@hbase.apache.org by gi...@apache.org on 2018/10/23 14:55:50 UTC
[24/37] hbase-site git commit: Published site at
3b68e5393edba011146962c7457faffc1e3c0ee7.
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/3b2f2cea/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/HStore.StoreFlusherImpl.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/HStore.StoreFlusherImpl.html b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/HStore.StoreFlusherImpl.html
index b595018..c82bf55 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/HStore.StoreFlusherImpl.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/HStore.StoreFlusherImpl.html
@@ -63,2735 +63,2737 @@
<span class="sourceLineNo">055</span>import org.apache.hadoop.conf.Configuration;<a name="line.55"></a>
<span class="sourceLineNo">056</span>import org.apache.hadoop.fs.FileSystem;<a name="line.56"></a>
<span class="sourceLineNo">057</span>import org.apache.hadoop.fs.Path;<a name="line.57"></a>
-<span class="sourceLineNo">058</span>import org.apache.hadoop.hbase.Cell;<a name="line.58"></a>
-<span class="sourceLineNo">059</span>import org.apache.hadoop.hbase.CellComparator;<a name="line.59"></a>
-<span class="sourceLineNo">060</span>import org.apache.hadoop.hbase.CellUtil;<a name="line.60"></a>
-<span class="sourceLineNo">061</span>import org.apache.hadoop.hbase.CompoundConfiguration;<a name="line.61"></a>
-<span class="sourceLineNo">062</span>import org.apache.hadoop.hbase.HConstants;<a name="line.62"></a>
-<span class="sourceLineNo">063</span>import org.apache.hadoop.hbase.MemoryCompactionPolicy;<a name="line.63"></a>
-<span class="sourceLineNo">064</span>import org.apache.hadoop.hbase.TableName;<a name="line.64"></a>
-<span class="sourceLineNo">065</span>import org.apache.hadoop.hbase.backup.FailedArchiveException;<a name="line.65"></a>
-<span class="sourceLineNo">066</span>import org.apache.hadoop.hbase.client.ColumnFamilyDescriptor;<a name="line.66"></a>
-<span class="sourceLineNo">067</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.67"></a>
-<span class="sourceLineNo">068</span>import org.apache.hadoop.hbase.client.Scan;<a name="line.68"></a>
-<span class="sourceLineNo">069</span>import org.apache.hadoop.hbase.conf.ConfigurationManager;<a name="line.69"></a>
-<span class="sourceLineNo">070</span>import org.apache.hadoop.hbase.conf.PropagatingConfigurationObserver;<a name="line.70"></a>
-<span class="sourceLineNo">071</span>import org.apache.hadoop.hbase.io.HeapSize;<a name="line.71"></a>
-<span class="sourceLineNo">072</span>import org.apache.hadoop.hbase.io.compress.Compression;<a name="line.72"></a>
-<span class="sourceLineNo">073</span>import org.apache.hadoop.hbase.io.crypto.Encryption;<a name="line.73"></a>
-<span class="sourceLineNo">074</span>import org.apache.hadoop.hbase.io.hfile.CacheConfig;<a name="line.74"></a>
-<span class="sourceLineNo">075</span>import org.apache.hadoop.hbase.io.hfile.HFile;<a name="line.75"></a>
-<span class="sourceLineNo">076</span>import org.apache.hadoop.hbase.io.hfile.HFileContext;<a name="line.76"></a>
-<span class="sourceLineNo">077</span>import org.apache.hadoop.hbase.io.hfile.HFileContextBuilder;<a name="line.77"></a>
-<span class="sourceLineNo">078</span>import org.apache.hadoop.hbase.io.hfile.HFileDataBlockEncoder;<a name="line.78"></a>
-<span class="sourceLineNo">079</span>import org.apache.hadoop.hbase.io.hfile.HFileDataBlockEncoderImpl;<a name="line.79"></a>
-<span class="sourceLineNo">080</span>import org.apache.hadoop.hbase.io.hfile.HFileScanner;<a name="line.80"></a>
-<span class="sourceLineNo">081</span>import org.apache.hadoop.hbase.io.hfile.InvalidHFileException;<a name="line.81"></a>
-<span class="sourceLineNo">082</span>import org.apache.hadoop.hbase.log.HBaseMarkers;<a name="line.82"></a>
-<span class="sourceLineNo">083</span>import org.apache.hadoop.hbase.monitoring.MonitoredTask;<a name="line.83"></a>
-<span class="sourceLineNo">084</span>import org.apache.hadoop.hbase.quotas.RegionSizeStore;<a name="line.84"></a>
-<span class="sourceLineNo">085</span>import org.apache.hadoop.hbase.regionserver.compactions.CompactionContext;<a name="line.85"></a>
-<span class="sourceLineNo">086</span>import org.apache.hadoop.hbase.regionserver.compactions.CompactionLifeCycleTracker;<a name="line.86"></a>
-<span class="sourceLineNo">087</span>import org.apache.hadoop.hbase.regionserver.compactions.CompactionProgress;<a name="line.87"></a>
-<span class="sourceLineNo">088</span>import org.apache.hadoop.hbase.regionserver.compactions.CompactionRequestImpl;<a name="line.88"></a>
-<span class="sourceLineNo">089</span>import org.apache.hadoop.hbase.regionserver.compactions.DefaultCompactor;<a name="line.89"></a>
-<span class="sourceLineNo">090</span>import org.apache.hadoop.hbase.regionserver.compactions.OffPeakHours;<a name="line.90"></a>
-<span class="sourceLineNo">091</span>import org.apache.hadoop.hbase.regionserver.querymatcher.ScanQueryMatcher;<a name="line.91"></a>
-<span class="sourceLineNo">092</span>import org.apache.hadoop.hbase.regionserver.throttle.ThroughputController;<a name="line.92"></a>
-<span class="sourceLineNo">093</span>import org.apache.hadoop.hbase.regionserver.wal.WALUtil;<a name="line.93"></a>
-<span class="sourceLineNo">094</span>import org.apache.hadoop.hbase.security.EncryptionUtil;<a name="line.94"></a>
-<span class="sourceLineNo">095</span>import org.apache.hadoop.hbase.security.User;<a name="line.95"></a>
-<span class="sourceLineNo">096</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.96"></a>
-<span class="sourceLineNo">097</span>import org.apache.hadoop.hbase.util.ChecksumType;<a name="line.97"></a>
-<span class="sourceLineNo">098</span>import org.apache.hadoop.hbase.util.ClassSize;<a name="line.98"></a>
-<span class="sourceLineNo">099</span>import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.99"></a>
-<span class="sourceLineNo">100</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.100"></a>
-<span class="sourceLineNo">101</span>import org.apache.hadoop.hbase.util.ReflectionUtils;<a name="line.101"></a>
-<span class="sourceLineNo">102</span>import org.apache.hadoop.util.StringUtils;<a name="line.102"></a>
-<span class="sourceLineNo">103</span>import org.apache.hadoop.util.StringUtils.TraditionalBinaryPrefix;<a name="line.103"></a>
-<span class="sourceLineNo">104</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.104"></a>
-<span class="sourceLineNo">105</span>import org.slf4j.Logger;<a name="line.105"></a>
-<span class="sourceLineNo">106</span>import org.slf4j.LoggerFactory;<a name="line.106"></a>
-<span class="sourceLineNo">107</span>import org.apache.hbase.thirdparty.com.google.common.annotations.VisibleForTesting;<a name="line.107"></a>
-<span class="sourceLineNo">108</span>import org.apache.hbase.thirdparty.com.google.common.base.Preconditions;<a name="line.108"></a>
-<span class="sourceLineNo">109</span>import org.apache.hbase.thirdparty.com.google.common.collect.ImmutableCollection;<a name="line.109"></a>
-<span class="sourceLineNo">110</span>import org.apache.hbase.thirdparty.com.google.common.collect.ImmutableList;<a name="line.110"></a>
-<span class="sourceLineNo">111</span>import org.apache.hbase.thirdparty.com.google.common.collect.Lists;<a name="line.111"></a>
-<span class="sourceLineNo">112</span>import org.apache.hbase.thirdparty.com.google.common.collect.Maps;<a name="line.112"></a>
-<span class="sourceLineNo">113</span>import org.apache.hbase.thirdparty.com.google.common.collect.Sets;<a name="line.113"></a>
-<span class="sourceLineNo">114</span>import org.apache.hbase.thirdparty.org.apache.commons.collections4.CollectionUtils;<a name="line.114"></a>
-<span class="sourceLineNo">115</span>import org.apache.hbase.thirdparty.org.apache.commons.collections4.IterableUtils;<a name="line.115"></a>
-<span class="sourceLineNo">116</span>import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.116"></a>
-<span class="sourceLineNo">117</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.CompactionDescriptor;<a name="line.117"></a>
-<span class="sourceLineNo">118</span><a name="line.118"></a>
-<span class="sourceLineNo">119</span>/**<a name="line.119"></a>
-<span class="sourceLineNo">120</span> * A Store holds a column family in a Region. Its a memstore and a set of zero<a name="line.120"></a>
-<span class="sourceLineNo">121</span> * or more StoreFiles, which stretch backwards over time.<a name="line.121"></a>
-<span class="sourceLineNo">122</span> *<a name="line.122"></a>
-<span class="sourceLineNo">123</span> * <p>There's no reason to consider append-logging at this level; all logging<a name="line.123"></a>
-<span class="sourceLineNo">124</span> * and locking is handled at the HRegion level. Store just provides<a name="line.124"></a>
-<span class="sourceLineNo">125</span> * services to manage sets of StoreFiles. One of the most important of those<a name="line.125"></a>
-<span class="sourceLineNo">126</span> * services is compaction services where files are aggregated once they pass<a name="line.126"></a>
-<span class="sourceLineNo">127</span> * a configurable threshold.<a name="line.127"></a>
-<span class="sourceLineNo">128</span> *<a name="line.128"></a>
-<span class="sourceLineNo">129</span> * <p>Locking and transactions are handled at a higher level. This API should<a name="line.129"></a>
-<span class="sourceLineNo">130</span> * not be called directly but by an HRegion manager.<a name="line.130"></a>
-<span class="sourceLineNo">131</span> */<a name="line.131"></a>
-<span class="sourceLineNo">132</span>@InterfaceAudience.Private<a name="line.132"></a>
-<span class="sourceLineNo">133</span>public class HStore implements Store, HeapSize, StoreConfigInformation, PropagatingConfigurationObserver {<a name="line.133"></a>
-<span class="sourceLineNo">134</span> public static final String MEMSTORE_CLASS_NAME = "hbase.regionserver.memstore.class";<a name="line.134"></a>
-<span class="sourceLineNo">135</span> public static final String COMPACTCHECKER_INTERVAL_MULTIPLIER_KEY =<a name="line.135"></a>
-<span class="sourceLineNo">136</span> "hbase.server.compactchecker.interval.multiplier";<a name="line.136"></a>
-<span class="sourceLineNo">137</span> public static final String BLOCKING_STOREFILES_KEY = "hbase.hstore.blockingStoreFiles";<a name="line.137"></a>
-<span class="sourceLineNo">138</span> public static final String BLOCK_STORAGE_POLICY_KEY = "hbase.hstore.block.storage.policy";<a name="line.138"></a>
-<span class="sourceLineNo">139</span> // keep in accordance with HDFS default storage policy<a name="line.139"></a>
-<span class="sourceLineNo">140</span> public static final String DEFAULT_BLOCK_STORAGE_POLICY = "HOT";<a name="line.140"></a>
-<span class="sourceLineNo">141</span> public static final int DEFAULT_COMPACTCHECKER_INTERVAL_MULTIPLIER = 1000;<a name="line.141"></a>
-<span class="sourceLineNo">142</span> public static final int DEFAULT_BLOCKING_STOREFILE_COUNT = 16;<a name="line.142"></a>
-<span class="sourceLineNo">143</span><a name="line.143"></a>
-<span class="sourceLineNo">144</span> private static final Logger LOG = LoggerFactory.getLogger(HStore.class);<a name="line.144"></a>
-<span class="sourceLineNo">145</span><a name="line.145"></a>
-<span class="sourceLineNo">146</span> protected final MemStore memstore;<a name="line.146"></a>
-<span class="sourceLineNo">147</span> // This stores directory in the filesystem.<a name="line.147"></a>
-<span class="sourceLineNo">148</span> protected final HRegion region;<a name="line.148"></a>
-<span class="sourceLineNo">149</span> private final ColumnFamilyDescriptor family;<a name="line.149"></a>
-<span class="sourceLineNo">150</span> private final HRegionFileSystem fs;<a name="line.150"></a>
-<span class="sourceLineNo">151</span> protected Configuration conf;<a name="line.151"></a>
-<span class="sourceLineNo">152</span> protected CacheConfig cacheConf;<a name="line.152"></a>
-<span class="sourceLineNo">153</span> private long lastCompactSize = 0;<a name="line.153"></a>
-<span class="sourceLineNo">154</span> volatile boolean forceMajor = false;<a name="line.154"></a>
-<span class="sourceLineNo">155</span> /* how many bytes to write between status checks */<a name="line.155"></a>
-<span class="sourceLineNo">156</span> static int closeCheckInterval = 0;<a name="line.156"></a>
-<span class="sourceLineNo">157</span> private AtomicLong storeSize = new AtomicLong();<a name="line.157"></a>
-<span class="sourceLineNo">158</span> private AtomicLong totalUncompressedBytes = new AtomicLong();<a name="line.158"></a>
-<span class="sourceLineNo">159</span><a name="line.159"></a>
-<span class="sourceLineNo">160</span> /**<a name="line.160"></a>
-<span class="sourceLineNo">161</span> * RWLock for store operations.<a name="line.161"></a>
-<span class="sourceLineNo">162</span> * Locked in shared mode when the list of component stores is looked at:<a name="line.162"></a>
-<span class="sourceLineNo">163</span> * - all reads/writes to table data<a name="line.163"></a>
-<span class="sourceLineNo">164</span> * - checking for split<a name="line.164"></a>
-<span class="sourceLineNo">165</span> * Locked in exclusive mode when the list of component stores is modified:<a name="line.165"></a>
-<span class="sourceLineNo">166</span> * - closing<a name="line.166"></a>
-<span class="sourceLineNo">167</span> * - completing a compaction<a name="line.167"></a>
-<span class="sourceLineNo">168</span> */<a name="line.168"></a>
-<span class="sourceLineNo">169</span> final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();<a name="line.169"></a>
-<span class="sourceLineNo">170</span> /**<a name="line.170"></a>
-<span class="sourceLineNo">171</span> * Lock specific to archiving compacted store files. This avoids races around<a name="line.171"></a>
-<span class="sourceLineNo">172</span> * the combination of retrieving the list of compacted files and moving them to<a name="line.172"></a>
-<span class="sourceLineNo">173</span> * the archive directory. Since this is usually a background process (other than<a name="line.173"></a>
-<span class="sourceLineNo">174</span> * on close), we don't want to handle this with the store write lock, which would<a name="line.174"></a>
-<span class="sourceLineNo">175</span> * block readers and degrade performance.<a name="line.175"></a>
-<span class="sourceLineNo">176</span> *<a name="line.176"></a>
-<span class="sourceLineNo">177</span> * Locked by:<a name="line.177"></a>
-<span class="sourceLineNo">178</span> * - CompactedHFilesDispatchHandler via closeAndArchiveCompactedFiles()<a name="line.178"></a>
-<span class="sourceLineNo">179</span> * - close()<a name="line.179"></a>
-<span class="sourceLineNo">180</span> */<a name="line.180"></a>
-<span class="sourceLineNo">181</span> final ReentrantLock archiveLock = new ReentrantLock();<a name="line.181"></a>
-<span class="sourceLineNo">182</span><a name="line.182"></a>
-<span class="sourceLineNo">183</span> private final boolean verifyBulkLoads;<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> * Use this counter to track concurrent puts. If TRACE-log is enabled, if we are over the<a name="line.186"></a>
-<span class="sourceLineNo">187</span> * threshold set by hbase.region.store.parallel.put.print.threshold (Default is 50) we will<a name="line.187"></a>
-<span class="sourceLineNo">188</span> * log a message that identifies the Store experience this high-level of concurrency.<a name="line.188"></a>
-<span class="sourceLineNo">189</span> */<a name="line.189"></a>
-<span class="sourceLineNo">190</span> private final AtomicInteger currentParallelPutCount = new AtomicInteger(0);<a name="line.190"></a>
-<span class="sourceLineNo">191</span> private final int parallelPutCountPrintThreshold;<a name="line.191"></a>
-<span class="sourceLineNo">192</span><a name="line.192"></a>
-<span class="sourceLineNo">193</span> private ScanInfo scanInfo;<a name="line.193"></a>
-<span class="sourceLineNo">194</span><a name="line.194"></a>
-<span class="sourceLineNo">195</span> // All access must be synchronized.<a name="line.195"></a>
-<span class="sourceLineNo">196</span> // TODO: ideally, this should be part of storeFileManager, as we keep passing this to it.<a name="line.196"></a>
-<span class="sourceLineNo">197</span> private final List<HStoreFile> filesCompacting = Lists.newArrayList();<a name="line.197"></a>
-<span class="sourceLineNo">198</span><a name="line.198"></a>
-<span class="sourceLineNo">199</span> // All access must be synchronized.<a name="line.199"></a>
-<span class="sourceLineNo">200</span> private final Set<ChangedReadersObserver> changedReaderObservers =<a name="line.200"></a>
-<span class="sourceLineNo">201</span> Collections.newSetFromMap(new ConcurrentHashMap<ChangedReadersObserver, Boolean>());<a name="line.201"></a>
-<span class="sourceLineNo">202</span><a name="line.202"></a>
-<span class="sourceLineNo">203</span> protected final int blocksize;<a name="line.203"></a>
-<span class="sourceLineNo">204</span> private HFileDataBlockEncoder dataBlockEncoder;<a name="line.204"></a>
-<span class="sourceLineNo">205</span><a name="line.205"></a>
-<span class="sourceLineNo">206</span> /** Checksum configuration */<a name="line.206"></a>
-<span class="sourceLineNo">207</span> protected ChecksumType checksumType;<a name="line.207"></a>
-<span class="sourceLineNo">208</span> protected int bytesPerChecksum;<a name="line.208"></a>
-<span class="sourceLineNo">209</span><a name="line.209"></a>
-<span class="sourceLineNo">210</span> // Comparing KeyValues<a name="line.210"></a>
-<span class="sourceLineNo">211</span> protected final CellComparator comparator;<a name="line.211"></a>
-<span class="sourceLineNo">212</span><a name="line.212"></a>
-<span class="sourceLineNo">213</span> final StoreEngine<?, ?, ?, ?> storeEngine;<a name="line.213"></a>
-<span class="sourceLineNo">214</span><a name="line.214"></a>
-<span class="sourceLineNo">215</span> private static final AtomicBoolean offPeakCompactionTracker = new AtomicBoolean();<a name="line.215"></a>
-<span class="sourceLineNo">216</span> private volatile OffPeakHours offPeakHours;<a name="line.216"></a>
-<span class="sourceLineNo">217</span><a name="line.217"></a>
-<span class="sourceLineNo">218</span> private static final int DEFAULT_FLUSH_RETRIES_NUMBER = 10;<a name="line.218"></a>
-<span class="sourceLineNo">219</span> private int flushRetriesNumber;<a name="line.219"></a>
-<span class="sourceLineNo">220</span> private int pauseTime;<a name="line.220"></a>
-<span class="sourceLineNo">221</span><a name="line.221"></a>
-<span class="sourceLineNo">222</span> private long blockingFileCount;<a name="line.222"></a>
-<span class="sourceLineNo">223</span> private int compactionCheckMultiplier;<a name="line.223"></a>
-<span class="sourceLineNo">224</span> protected Encryption.Context cryptoContext = Encryption.Context.NONE;<a name="line.224"></a>
-<span class="sourceLineNo">225</span><a name="line.225"></a>
-<span class="sourceLineNo">226</span> private AtomicLong flushedCellsCount = new AtomicLong();<a name="line.226"></a>
-<span class="sourceLineNo">227</span> private AtomicLong compactedCellsCount = new AtomicLong();<a name="line.227"></a>
-<span class="sourceLineNo">228</span> private AtomicLong majorCompactedCellsCount = new AtomicLong();<a name="line.228"></a>
-<span class="sourceLineNo">229</span> private AtomicLong flushedCellsSize = new AtomicLong();<a name="line.229"></a>
-<span class="sourceLineNo">230</span> private AtomicLong flushedOutputFileSize = new AtomicLong();<a name="line.230"></a>
-<span class="sourceLineNo">231</span> private AtomicLong compactedCellsSize = new AtomicLong();<a name="line.231"></a>
-<span class="sourceLineNo">232</span> private AtomicLong majorCompactedCellsSize = new AtomicLong();<a name="line.232"></a>
-<span class="sourceLineNo">233</span><a name="line.233"></a>
-<span class="sourceLineNo">234</span> /**<a name="line.234"></a>
-<span class="sourceLineNo">235</span> * Constructor<a name="line.235"></a>
-<span class="sourceLineNo">236</span> * @param region<a name="line.236"></a>
-<span class="sourceLineNo">237</span> * @param family HColumnDescriptor for this column<a name="line.237"></a>
-<span class="sourceLineNo">238</span> * @param confParam configuration object<a name="line.238"></a>
-<span class="sourceLineNo">239</span> * failed. Can be null.<a name="line.239"></a>
-<span class="sourceLineNo">240</span> * @throws IOException<a name="line.240"></a>
-<span class="sourceLineNo">241</span> */<a name="line.241"></a>
-<span class="sourceLineNo">242</span> protected HStore(final HRegion region, final ColumnFamilyDescriptor family,<a name="line.242"></a>
-<span class="sourceLineNo">243</span> final Configuration confParam) throws IOException {<a name="line.243"></a>
-<span class="sourceLineNo">244</span><a name="line.244"></a>
-<span class="sourceLineNo">245</span> this.fs = region.getRegionFileSystem();<a name="line.245"></a>
-<span class="sourceLineNo">246</span><a name="line.246"></a>
-<span class="sourceLineNo">247</span> // Assemble the store's home directory and Ensure it exists.<a name="line.247"></a>
-<span class="sourceLineNo">248</span> fs.createStoreDir(family.getNameAsString());<a name="line.248"></a>
-<span class="sourceLineNo">249</span> this.region = region;<a name="line.249"></a>
-<span class="sourceLineNo">250</span> this.family = family;<a name="line.250"></a>
-<span class="sourceLineNo">251</span> // 'conf' renamed to 'confParam' b/c we use this.conf in the constructor<a name="line.251"></a>
-<span class="sourceLineNo">252</span> // CompoundConfiguration will look for keys in reverse order of addition, so we'd<a name="line.252"></a>
-<span class="sourceLineNo">253</span> // add global config first, then table and cf overrides, then cf metadata.<a name="line.253"></a>
-<span class="sourceLineNo">254</span> this.conf = new CompoundConfiguration()<a name="line.254"></a>
-<span class="sourceLineNo">255</span> .add(confParam)<a name="line.255"></a>
-<span class="sourceLineNo">256</span> .addBytesMap(region.getTableDescriptor().getValues())<a name="line.256"></a>
-<span class="sourceLineNo">257</span> .addStringMap(family.getConfiguration())<a name="line.257"></a>
-<span class="sourceLineNo">258</span> .addBytesMap(family.getValues());<a name="line.258"></a>
-<span class="sourceLineNo">259</span> this.blocksize = family.getBlocksize();<a name="line.259"></a>
-<span class="sourceLineNo">260</span><a name="line.260"></a>
-<span class="sourceLineNo">261</span> // set block storage policy for store directory<a name="line.261"></a>
-<span class="sourceLineNo">262</span> String policyName = family.getStoragePolicy();<a name="line.262"></a>
-<span class="sourceLineNo">263</span> if (null == policyName) {<a name="line.263"></a>
-<span class="sourceLineNo">264</span> policyName = this.conf.get(BLOCK_STORAGE_POLICY_KEY, DEFAULT_BLOCK_STORAGE_POLICY);<a name="line.264"></a>
-<span class="sourceLineNo">265</span> }<a name="line.265"></a>
-<span class="sourceLineNo">266</span> this.fs.setStoragePolicy(family.getNameAsString(), policyName.trim());<a name="line.266"></a>
-<span class="sourceLineNo">267</span><a name="line.267"></a>
-<span class="sourceLineNo">268</span> this.dataBlockEncoder = new HFileDataBlockEncoderImpl(family.getDataBlockEncoding());<a name="line.268"></a>
-<span class="sourceLineNo">269</span><a name="line.269"></a>
-<span class="sourceLineNo">270</span> this.comparator = region.getCellComparator();<a name="line.270"></a>
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