You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@hbase.apache.org by gi...@apache.org on 2018/08/18 14:48:32 UTC
[24/41] hbase-site git commit: Published site at
d159b1f8bb9a29f7786a96c910157e12583768a2.
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/7cafc412/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html
index 242189f..05eaf18 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html
@@ -102,499 +102,500 @@
<span class="sourceLineNo">094</span> this.hasMVCCInfo = hasMVCC;<a name="line.94"></a>
<span class="sourceLineNo">095</span> this.scannerOrder = scannerOrder;<a name="line.95"></a>
<span class="sourceLineNo">096</span> this.canOptimizeForNonNullColumn = canOptimizeForNonNullColumn;<a name="line.96"></a>
-<span class="sourceLineNo">097</span> }<a name="line.97"></a>
-<span class="sourceLineNo">098</span><a name="line.98"></a>
-<span class="sourceLineNo">099</span> boolean isPrimaryReplica() {<a name="line.99"></a>
-<span class="sourceLineNo">100</span> return reader.isPrimaryReplicaReader();<a name="line.100"></a>
-<span class="sourceLineNo">101</span> }<a name="line.101"></a>
-<span class="sourceLineNo">102</span><a name="line.102"></a>
-<span class="sourceLineNo">103</span> /**<a name="line.103"></a>
-<span class="sourceLineNo">104</span> * Return an array of scanners corresponding to the given set of store files.<a name="line.104"></a>
-<span class="sourceLineNo">105</span> */<a name="line.105"></a>
-<span class="sourceLineNo">106</span> public static List<StoreFileScanner> getScannersForStoreFiles(Collection<HStoreFile> files,<a name="line.106"></a>
-<span class="sourceLineNo">107</span> boolean cacheBlocks, boolean usePread, long readPt) throws IOException {<a name="line.107"></a>
-<span class="sourceLineNo">108</span> return getScannersForStoreFiles(files, cacheBlocks, usePread, false, false, readPt);<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> * Return an array of scanners corresponding to the given set of store files.<a name="line.112"></a>
-<span class="sourceLineNo">113</span> */<a name="line.113"></a>
-<span class="sourceLineNo">114</span> public static List<StoreFileScanner> getScannersForStoreFiles(Collection<HStoreFile> files,<a name="line.114"></a>
-<span class="sourceLineNo">115</span> boolean cacheBlocks, boolean usePread, boolean isCompaction, boolean useDropBehind,<a name="line.115"></a>
-<span class="sourceLineNo">116</span> long readPt) throws IOException {<a name="line.116"></a>
-<span class="sourceLineNo">117</span> return getScannersForStoreFiles(files, cacheBlocks, usePread, isCompaction, useDropBehind, null,<a name="line.117"></a>
-<span class="sourceLineNo">118</span> readPt);<a name="line.118"></a>
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-<span class="sourceLineNo">120</span><a name="line.120"></a>
-<span class="sourceLineNo">121</span> /**<a name="line.121"></a>
-<span class="sourceLineNo">122</span> * Return an array of scanners corresponding to the given set of store files, And set the<a name="line.122"></a>
-<span class="sourceLineNo">123</span> * ScanQueryMatcher for each store file scanner for further optimization<a name="line.123"></a>
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-<span class="sourceLineNo">125</span> public static List<StoreFileScanner> getScannersForStoreFiles(Collection<HStoreFile> files,<a name="line.125"></a>
-<span class="sourceLineNo">126</span> boolean cacheBlocks, boolean usePread, boolean isCompaction, boolean canUseDrop,<a name="line.126"></a>
-<span class="sourceLineNo">127</span> ScanQueryMatcher matcher, long readPt) throws IOException {<a name="line.127"></a>
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-<span class="sourceLineNo">129</span> return Collections.emptyList();<a name="line.129"></a>
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-<span class="sourceLineNo">131</span> List<StoreFileScanner> scanners = new ArrayList<>(files.size());<a name="line.131"></a>
-<span class="sourceLineNo">132</span> boolean canOptimizeForNonNullColumn = matcher != null ? !matcher.hasNullColumnInQuery() : false;<a name="line.132"></a>
-<span class="sourceLineNo">133</span> PriorityQueue<HStoreFile> sortedFiles =<a name="line.133"></a>
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-<span class="sourceLineNo">136</span> // The sort function needs metadata so we need to open reader first before sorting the list.<a name="line.136"></a>
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-<span class="sourceLineNo">143</span> HStoreFile sf = sortedFiles.remove();<a name="line.143"></a>
-<span class="sourceLineNo">144</span> StoreFileScanner scanner;<a name="line.144"></a>
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-<span class="sourceLineNo">146</span> scanner = sf.getPreadScanner(cacheBlocks, readPt, i, canOptimizeForNonNullColumn);<a name="line.146"></a>
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-<span class="sourceLineNo">164</span> /**<a name="line.164"></a>
-<span class="sourceLineNo">165</span> * Get scanners for compaction. We will create a separated reader for each store file to avoid<a name="line.165"></a>
-<span class="sourceLineNo">166</span> * contention with normal read request.<a name="line.166"></a>
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-<span class="sourceLineNo">170</span> List<StoreFileScanner> scanners = new ArrayList<>(files.size());<a name="line.170"></a>
-<span class="sourceLineNo">171</span> List<HStoreFile> sortedFiles = new ArrayList<>(files);<a name="line.171"></a>
-<span class="sourceLineNo">172</span> Collections.sort(sortedFiles, StoreFileComparators.SEQ_ID);<a name="line.172"></a>
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-<span class="sourceLineNo">175</span> for (int i = 0, n = sortedFiles.size(); i < n; i++) {<a name="line.175"></a>
-<span class="sourceLineNo">176</span> scanners.add(<a name="line.176"></a>
-<span class="sourceLineNo">177</span> sortedFiles.get(i).getStreamScanner(canUseDropBehind, false, true, readPt, i, false));<a name="line.177"></a>
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-<span class="sourceLineNo">181</span> if (!succ) {<a name="line.181"></a>
-<span class="sourceLineNo">182</span> for (StoreFileScanner scanner : scanners) {<a name="line.182"></a>
-<span class="sourceLineNo">183</span> scanner.close();<a name="line.183"></a>
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-<span class="sourceLineNo">191</span> public String toString() {<a name="line.191"></a>
-<span class="sourceLineNo">192</span> return "StoreFileScanner[" + hfs.toString() + ", cur=" + cur + "]";<a name="line.192"></a>
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