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 2018/07/03 20:06:56 UTC
[41/51] [partial] hbase-site git commit: Published site at
0f23784182ab88649de340d75804e0ff20dcd0fc.
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/bcb555af/devapidocs/org/apache/hadoop/hbase/io/hfile/bucket/BucketCache.WriterThread.html
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</td>
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+<td class="colFirst"><code>private void</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketCache.WriterThread.html#putIntoBackingMap-org.apache.hadoop.hbase.io.hfile.BlockCacheKey-org.apache.hadoop.hbase.io.hfile.bucket.BucketCache.BucketEntry-">putIntoBackingMap</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/BlockCacheKey.html" title="class in org.apache.hadoop.hbase.io.hfile">BlockCacheKey</a> key,
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+<div class="block">Put the new bucket entry into backingMap.</div>
+</td>
+</tr>
+<tr id="i3" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketCache.WriterThread.html#run--">run</a></span>()</code> </td>
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+ <a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketCache.BucketEntry.html" title="class in org.apache.hadoop.hbase.io.hfile.bucket">BucketCache.BucketEntry</a> bucketEntry)</pre>
+<div class="block">Put the new bucket entry into backingMap. Notice that we are allowed to replace the existing
+ cache with a new block for the same cache key. there's a corner case: one thread cache a
+ block in ramCache, copy to io-engine and add a bucket entry to backingMap. Caching another
+ new block with the same cache key do the same thing for the same cache key, so if not evict
+ the previous bucket entry, then memory leak happen because the previous bucketEntry is gone
+ but the bucketAllocator do not free its memory.</div>
+<dl>
+<dt><span class="paramLabel">Parameters:</span></dt>
+<dd><code>key</code> - Block cache key</dd>
+<dd><code>bucketEntry</code> - Bucket entry to put into backingMap.</dd>
+<dt><span class="seeLabel">See Also:</span></dt>
+<dd><a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/BlockCacheUtil.html#shouldReplaceExistingCacheBlock-org.apache.hadoop.hbase.io.hfile.BlockCache-org.apache.hadoop.hbase.io.hfile.BlockCacheKey-org.apache.hadoop.hbase.io.hfile.Cacheable-"><code>BlockCacheUtil.shouldReplaceExistingCacheBlock(BlockCache blockCache,BlockCacheKey
+ cacheKey, Cacheable newBlock)</code></a></dd>
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<div class="block">Flush the entries in ramCache to IOEngine and add bucket entry to backingMap.
Process all that are passed in even if failure being sure to remove from ramCache else we'll
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/bcb555af/devapidocs/org/apache/hadoop/hbase/io/hfile/bucket/BucketCache.html
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</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>private void</code></td>
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+ <a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/Cacheable.html" title="interface in org.apache.hadoop.hbase.io.hfile">Cacheable</a> cachedItem,
+ boolean inMemory,
+ boolean wait)</code> </td>
+</tr>
+<tr id="i7" class="rowColor">
+<td class="colFirst"><code>private void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketCache.html#checkIOErrorIsTolerated--">checkIOErrorIsTolerated</a></span>()</code>
<div class="block">Check whether we tolerate IO error this time.</div>
</td>
</tr>
-<tr id="i7" class="rowColor">
+<tr id="i8" class="altColor">
<td class="colFirst"><code>private <a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketCache.RAMQueueEntry.html" title="class in org.apache.hadoop.hbase.io.hfile.bucket">BucketCache.RAMQueueEntry</a></code></td>
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</tr>
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+<tr id="i9" class="rowColor">
<td class="colFirst"><code>private void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketCache.html#disableCache--">disableCache</a></span>()</code>
<div class="block">Used to shut down the cache -or- turn it off in the case of something broken.</div>
</td>
</tr>
-<tr id="i9" class="rowColor">
+<tr id="i10" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketCache.html#evictBlock-org.apache.hadoop.hbase.io.hfile.BlockCacheKey-">evictBlock</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/BlockCacheKey.html" title="class in org.apache.hadoop.hbase.io.hfile">BlockCacheKey</a> cacheKey)</code>
<div class="block">Evict block from cache.</div>
</td>
</tr>
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+<tr id="i11" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketCache.html#evictBlock-org.apache.hadoop.hbase.io.hfile.BlockCacheKey-boolean-">evictBlock</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/BlockCacheKey.html" title="class in org.apache.hadoop.hbase.io.hfile">BlockCacheKey</a> cacheKey,
boolean deletedBlock)</code> </td>
</tr>
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<td class="colFirst"><code>int</code></td>
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</td>
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passed, sometimes it might not due to changing refCounts</div>
</td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketCache.html#freeSpace-java.lang.String-">freeSpace</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> why)</code>
<div class="block">Free the space if the used size reaches acceptableSize() or one size block
couldn't be allocated.</div>
</td>
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<td class="colFirst"><code>long</code></td>
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</td>
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boolean decrementBlockNumber)</code> </td>
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+ boolean inMemory,
+ boolean wait)</code> </td>
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</tr>
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<td class="colFirst"><code>boolean</code></td>
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boolean deletedBlock)</code> </td>
</tr>
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<td class="colFirst"><code>private boolean</code></td>
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</td>
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+</td>
+</tr>
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