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Posted to commits@hbase.apache.org by mi...@apache.org on 2015/12/16 18:00:07 UTC
[21/30] hbase-site git commit: Updated 0.94 docs to
0f35a32ab123ee299f4aaaea02b4ba2d2b43cff2
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/ecb8d8ba/0.94/apidocs/org/apache/hadoop/hbase/zookeeper/RecoverableZooKeeper.html
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diff --git a/0.94/apidocs/org/apache/hadoop/hbase/zookeeper/RecoverableZooKeeper.html b/0.94/apidocs/org/apache/hadoop/hbase/zookeeper/RecoverableZooKeeper.html
index a448929..ff7ef67 100644
--- a/0.94/apidocs/org/apache/hadoop/hbase/zookeeper/RecoverableZooKeeper.html
+++ b/0.94/apidocs/org/apache/hadoop/hbase/zookeeper/RecoverableZooKeeper.html
@@ -98,24 +98,24 @@
<pre>public class <a href="../../../../../src-html/org/apache/hadoop/hbase/zookeeper/RecoverableZooKeeper.html#line.70">RecoverableZooKeeper</a>
extends <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre>
<div class="block">A zookeeper that can handle 'recoverable' errors.
- To handle recoverable errors, developers need to realize that there are two
- classes of requests: idempotent and non-idempotent requests. Read requests
- and unconditional sets and deletes are examples of idempotent requests, they
- can be reissued with the same results.
- (Although, the delete may throw a NoNodeException on reissue its effect on
- the ZooKeeper state is the same.) Non-idempotent requests need special
- handling, application and library writers need to keep in mind that they may
- need to encode information in the data or name of znodes to detect
- retries. A simple example is a create that uses a sequence flag.
- If a process issues a create("/x-", ..., SEQUENCE) and gets a connection
- loss exception, that process will reissue another
- create("/x-", ..., SEQUENCE) and get back x-111. When the process does a
- getChildren("/"), it sees x-1,x-30,x-109,x-110,x-111, now it could be
- that x-109 was the result of the previous create, so the process actually
- owns both x-109 and x-111. An easy way around this is to use "x-process id-"
+ To handle recoverable errors, developers need to realize that there are two
+ classes of requests: idempotent and non-idempotent requests. Read requests
+ and unconditional sets and deletes are examples of idempotent requests, they
+ can be reissued with the same results.
+ (Although, the delete may throw a NoNodeException on reissue its effect on
+ the ZooKeeper state is the same.) Non-idempotent requests need special
+ handling, application and library writers need to keep in mind that they may
+ need to encode information in the data or name of znodes to detect
+ retries. A simple example is a create that uses a sequence flag.
+ If a process issues a create("/x-", ..., SEQUENCE) and gets a connection
+ loss exception, that process will reissue another
+ create("/x-", ..., SEQUENCE) and get back x-111. When the process does a
+ getChildren("/"), it sees x-1,x-30,x-109,x-110,x-111, now it could be
+ that x-109 was the result of the previous create, so the process actually
+ owns both x-109 and x-111. An easy way around this is to use "x-process id-"
when doing the create. If the process is using an id of 352, before reissuing
- the create it will do a getChildren("/") and see "x-222-1", "x-542-30",
- "x-352-109", x-333-110". The process will know that the original create
+ the create it will do a getChildren("/") and see "x-222-1", "x-542-30",
+ "x-352-109", x-333-110". The process will know that the original create
succeeded an the znode it created is "x-352-109".</div>
<dl><dt><span class="strong">See Also:</span></dt><dd>"http://wiki.apache.org/hadoop/ZooKeeper/ErrorHandling"</dd></dl>
</li>
@@ -483,7 +483,7 @@ extends <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?
throws org.apache.zookeeper.KeeperException,
<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/InterruptedException.html?is-external=true" title="class or interface in java.lang">InterruptedException</a></pre>
<div class="block">setData is NOT an idempotent operation. Retry may cause BadVersion Exception
- Adding an identifier field into the data to check whether
+ Adding an identifier field into the data to check whether
badversion is caused by the result of previous correctly setData</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>Stat instance</dd>
<dt><span class="strong">Throws:</span></dt>
@@ -504,14 +504,14 @@ extends <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?
throws org.apache.zookeeper.KeeperException,
<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/InterruptedException.html?is-external=true" title="class or interface in java.lang">InterruptedException</a></pre>
<div class="block"><p>
- NONSEQUENTIAL create is idempotent operation.
+ NONSEQUENTIAL create is idempotent operation.
Retry before throwing exceptions.
But this function will not throw the NodeExist exception back to the
application.
</p>
<p>
- But SEQUENTIAL is NOT idempotent operation. It is necessary to add
- identifier to the path to verify, whether the previous one is successful
+ But SEQUENTIAL is NOT idempotent operation. It is necessary to add
+ identifier to the path to verify, whether the previous one is successful
or not.
</p></div>
<dl><dt><span class="strong">Returns:</span></dt><dd>Path</dd>
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/ecb8d8ba/0.94/apidocs/org/apache/hadoop/hbase/zookeeper/ZKAssign.html
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diff --git a/0.94/apidocs/org/apache/hadoop/hbase/zookeeper/ZKAssign.html b/0.94/apidocs/org/apache/hadoop/hbase/zookeeper/ZKAssign.html
index 2e0925a..ab3a4ca 100644
--- a/0.94/apidocs/org/apache/hadoop/hbase/zookeeper/ZKAssign.html
+++ b/0.94/apidocs/org/apache/hadoop/hbase/zookeeper/ZKAssign.html
@@ -652,7 +652,7 @@ extends <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?
and OFFLINE state.
<p>
Sets a watcher on the unassigned region node if the method is successful.
-
+
<p>
This method should be used when assigning a region.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>zkw</code> - zk reference</dd><dd><code>region</code> - region to be created as offline</dd><dd><code>serverName</code> - server event originates from</dd><dd><code>hijack</code> - - true if to be hijacked and reassigned, false otherwise</dd><dd><code>allowCreation</code> - - true if the node has to be created newly, false otherwise</dd>
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/ecb8d8ba/0.94/apidocs/org/apache/hadoop/hbase/zookeeper/ZKSplitLog.TaskState.html
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diff --git a/0.94/apidocs/org/apache/hadoop/hbase/zookeeper/ZKSplitLog.TaskState.html b/0.94/apidocs/org/apache/hadoop/hbase/zookeeper/ZKSplitLog.TaskState.html
index 5fa08a5..a85c9a2 100644
--- a/0.94/apidocs/org/apache/hadoop/hbase/zookeeper/ZKSplitLog.TaskState.html
+++ b/0.94/apidocs/org/apache/hadoop/hbase/zookeeper/ZKSplitLog.TaskState.html
@@ -299,7 +299,7 @@ for (ZKSplitLog.TaskState c : ZKSplitLog.TaskState.values())
<pre>public static <a href="../../../../../org/apache/hadoop/hbase/zookeeper/ZKSplitLog.TaskState.html" title="enum in org.apache.hadoop.hbase.zookeeper">ZKSplitLog.TaskState</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/zookeeper/ZKSplitLog.TaskState.html#line.259">valueOf</a>(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> name)</pre>
<div class="block">Returns the enum constant of this type with the specified name.
The string must match <i>exactly</i> an identifier used to declare an
-enum constant in this type. (Extraneous whitespace characters are
+enum constant in this type. (Extraneous whitespace characters are
not permitted.)</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>name</code> - the name of the enum constant to be returned.</dd>
<dt><span class="strong">Returns:</span></dt><dd>the enum constant with the specified name</dd>
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/ecb8d8ba/0.94/apidocs/org/apache/hadoop/hbase/zookeeper/ZKTable.TableState.html
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diff --git a/0.94/apidocs/org/apache/hadoop/hbase/zookeeper/ZKTable.TableState.html b/0.94/apidocs/org/apache/hadoop/hbase/zookeeper/ZKTable.TableState.html
index 0c31f49..df0b338 100644
--- a/0.94/apidocs/org/apache/hadoop/hbase/zookeeper/ZKTable.TableState.html
+++ b/0.94/apidocs/org/apache/hadoop/hbase/zookeeper/ZKTable.TableState.html
@@ -269,7 +269,7 @@ for (ZKTable.TableState c : ZKTable.TableState.values())
<pre>public static <a href="../../../../../org/apache/hadoop/hbase/zookeeper/ZKTable.TableState.html" title="enum in org.apache.hadoop.hbase.zookeeper">ZKTable.TableState</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/zookeeper/ZKTable.TableState.html#line.26">valueOf</a>(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> name)</pre>
<div class="block">Returns the enum constant of this type with the specified name.
The string must match <i>exactly</i> an identifier used to declare an
-enum constant in this type. (Extraneous whitespace characters are
+enum constant in this type. (Extraneous whitespace characters are
not permitted.)</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>name</code> - the name of the enum constant to be returned.</dd>
<dt><span class="strong">Returns:</span></dt><dd>the enum constant with the specified name</dd>
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/ecb8d8ba/0.94/apidocs/src-html/org/apache/hadoop/hbase/io/encoding/CopyKeyDataBlockEncoder.html
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diff --git a/0.94/apidocs/src-html/org/apache/hadoop/hbase/io/encoding/CopyKeyDataBlockEncoder.html b/0.94/apidocs/src-html/org/apache/hadoop/hbase/io/encoding/CopyKeyDataBlockEncoder.html
index 027e36d..6c45914 100644
--- a/0.94/apidocs/src-html/org/apache/hadoop/hbase/io/encoding/CopyKeyDataBlockEncoder.html
+++ b/0.94/apidocs/src-html/org/apache/hadoop/hbase/io/encoding/CopyKeyDataBlockEncoder.html
@@ -33,74 +33,77 @@
<span class="sourceLineNo">025</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.25"></a>
<span class="sourceLineNo">026</span>import org.apache.hadoop.io.RawComparator;<a name="line.26"></a>
<span class="sourceLineNo">027</span><a name="line.27"></a>
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-<span class="sourceLineNo">031</span> */<a name="line.31"></a>
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-<span class="sourceLineNo">034</span> public void compressKeyValues(DataOutputStream out,<a name="line.34"></a>
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-<span class="sourceLineNo">043</span> int preserveHeaderLength, int skipLastBytes, boolean includesMemstoreTS)<a name="line.43"></a>
-<span class="sourceLineNo">044</span> throws IOException {<a name="line.44"></a>
-<span class="sourceLineNo">045</span> int decompressedSize = source.readInt();<a name="line.45"></a>
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-<span class="sourceLineNo">047</span> preserveHeaderLength);<a name="line.47"></a>
-<span class="sourceLineNo">048</span> buffer.position(preserveHeaderLength);<a name="line.48"></a>
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-<span class="sourceLineNo">051</span> return buffer;<a name="line.51"></a>
-<span class="sourceLineNo">052</span> }<a name="line.52"></a>
+<span class="sourceLineNo">028</span>import org.apache.hadoop.classification.InterfaceAudience;<a name="line.28"></a>
+<span class="sourceLineNo">029</span><a name="line.29"></a>
+<span class="sourceLineNo">030</span>/**<a name="line.30"></a>
+<span class="sourceLineNo">031</span> * Just copy data, do not do any kind of compression. Use for comparison and<a name="line.31"></a>
+<span class="sourceLineNo">032</span> * benchmarking.<a name="line.32"></a>
+<span class="sourceLineNo">033</span> */<a name="line.33"></a>
+<span class="sourceLineNo">034</span>@InterfaceAudience.Private<a name="line.34"></a>
+<span class="sourceLineNo">035</span>public class CopyKeyDataBlockEncoder extends BufferedDataBlockEncoder {<a name="line.35"></a>
+<span class="sourceLineNo">036</span> @Override<a name="line.36"></a>
+<span class="sourceLineNo">037</span> public void compressKeyValues(DataOutputStream out,<a name="line.37"></a>
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+<span class="sourceLineNo">039</span> in.rewind();<a name="line.39"></a>
+<span class="sourceLineNo">040</span> ByteBufferUtils.putInt(out, in.limit());<a name="line.40"></a>
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+<span class="sourceLineNo">042</span> }<a name="line.42"></a>
+<span class="sourceLineNo">043</span><a name="line.43"></a>
+<span class="sourceLineNo">044</span> @Override<a name="line.44"></a>
+<span class="sourceLineNo">045</span> public ByteBuffer uncompressKeyValues(DataInputStream source,<a name="line.45"></a>
+<span class="sourceLineNo">046</span> int preserveHeaderLength, int skipLastBytes, boolean includesMemstoreTS)<a name="line.46"></a>
+<span class="sourceLineNo">047</span> throws IOException {<a name="line.47"></a>
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+<span class="sourceLineNo">051</span> buffer.position(preserveHeaderLength);<a name="line.51"></a>
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