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<div class="subTitle">org.apache.kudu.client</div>
<h2 title="Interface SessionConfiguration" class="title">Interface SessionConfiguration</h2>
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<dt>All Known Implementing Classes:</dt>
<dd><a href="../../../../org/apache/kudu/client/AsyncKuduSession.html" title="class in org.apache.kudu.client">AsyncKuduSession</a>, <a href="../../../../org/apache/kudu/client/KuduSession.html" title="class in org.apache.kudu.client">KuduSession</a></dd>
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<pre>@InterfaceAudience.Public
@InterfaceStability.Evolving
public interface <span class="typeNameLabel">SessionConfiguration</span></pre>
<div class="block">Interface that defines the methods used to configure a session. It also exposes ways to
query its state.</div>
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<caption><span>Nested Classes</span><span class="tabEnd">&nbsp;</span></caption>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Interface and Description</th>
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<tr class="altColor">
<td class="colFirst"><code>static class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/kudu/client/SessionConfiguration.FlushMode.html" title="enum in org.apache.kudu.client">SessionConfiguration.FlushMode</a></span></code>&nbsp;</td>
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<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t3" class="tableTab"><span><a href="javascript:show(4);">Abstract Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t6" class="tableTab"><span><a href="javascript:show(32);">Deprecated Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
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<th class="colFirst" scope="col">Modifier and Type</th>
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<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/kudu/client/SessionConfiguration.html#countPendingErrors--">countPendingErrors</a></span>()</code>
<div class="block">Return the number of errors which are pending.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code><a href="../../../../org/apache/kudu/client/SessionConfiguration.FlushMode.html" title="enum in org.apache.kudu.client">SessionConfiguration.FlushMode</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/kudu/client/SessionConfiguration.html#getFlushMode--">getFlushMode</a></span>()</code>
<div class="block">Get the current flush mode.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code><a href="../../../../org/apache/kudu/client/RowErrorsAndOverflowStatus.html" title="class in org.apache.kudu.client">RowErrorsAndOverflowStatus</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/kudu/client/SessionConfiguration.html#getPendingErrors--">getPendingErrors</a></span>()</code>
<div class="block">Return any errors from previous calls.</div>
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<tr id="i3" class="rowColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/kudu/client/SessionConfiguration.html#getTimeoutMillis--">getTimeoutMillis</a></span>()</code>
<div class="block">Get the current timeout.</div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/kudu/client/SessionConfiguration.html#hasPendingOperations--">hasPendingOperations</a></span>()</code>
<div class="block">Check if there are operations that haven't been completely applied.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/kudu/client/SessionConfiguration.html#isClosed--">isClosed</a></span>()</code>
<div class="block">Returns true if this session has already been closed.</div>
</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/kudu/client/SessionConfiguration.html#isIgnoreAllDuplicateRows--">isIgnoreAllDuplicateRows</a></span>()</code>
<div class="block">Tells if the session is currently ignoring row errors when the whole list returned by a tablet
server is of the AlreadyPresent type.</div>
</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/kudu/client/SessionConfiguration.html#isIgnoreAllNotFoundRows--">isIgnoreAllNotFoundRows</a></span>()</code>
<div class="block">Tells if the session is currently ignoring row errors when the whole list returned by a tablet
server is of the NotFound type.</div>
</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/kudu/client/SessionConfiguration.html#setExternalConsistencyMode-org.apache.kudu.client.ExternalConsistencyMode-">setExternalConsistencyMode</a></span>(<a href="../../../../org/apache/kudu/client/ExternalConsistencyMode.html" title="enum in org.apache.kudu.client">ExternalConsistencyMode</a>&nbsp;consistencyMode)</code>
<div class="block">Set the new external consistency mode for this session.</div>
</td>
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<tr id="i9" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/kudu/client/SessionConfiguration.html#setFlushInterval-int-">setFlushInterval</a></span>(int&nbsp;interval)</code>
<div class="block">Set the flush interval, which will be used for the next scheduling decision.</div>
</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/kudu/client/SessionConfiguration.html#setFlushMode-org.apache.kudu.client.SessionConfiguration.FlushMode-">setFlushMode</a></span>(<a href="../../../../org/apache/kudu/client/SessionConfiguration.FlushMode.html" title="enum in org.apache.kudu.client">SessionConfiguration.FlushMode</a>&nbsp;flushMode)</code>
<div class="block">Set the new flush mode for this session.</div>
</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/kudu/client/SessionConfiguration.html#setIgnoreAllDuplicateRows-boolean-">setIgnoreAllDuplicateRows</a></span>(boolean&nbsp;ignoreAllDuplicateRows)</code>
<div class="block">Configures the option to ignore all the row errors if they are all of the AlreadyPresent type.</div>
</td>
</tr>
<tr id="i12" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/kudu/client/SessionConfiguration.html#setIgnoreAllNotFoundRows-boolean-">setIgnoreAllNotFoundRows</a></span>(boolean&nbsp;ignoreAllNotFoundRows)</code>
<div class="block">Configures the option to ignore all the row errors if they are all of the NotFound type.</div>
</td>
</tr>
<tr id="i13" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/kudu/client/SessionConfiguration.html#setMutationBufferLowWatermark-float-">setMutationBufferLowWatermark</a></span>(float&nbsp;mutationBufferLowWatermarkPercentage)</code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;
<div class="block"><span class="deprecationComment">The low watermark no longer has any effect.</span></div>
</div>
</td>
</tr>
<tr id="i14" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/kudu/client/SessionConfiguration.html#setMutationBufferSpace-int-">setMutationBufferSpace</a></span>(int&nbsp;size)</code>
<div class="block">Set the number of operations that can be buffered.</div>
</td>
</tr>
<tr id="i15" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/kudu/client/SessionConfiguration.html#setTimeoutMillis-long-">setTimeoutMillis</a></span>(long&nbsp;timeout)</code>
<div class="block">Sets the timeout for the next applied operations.</div>
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<h4>getFlushMode</h4>
<pre><a href="../../../../org/apache/kudu/client/SessionConfiguration.FlushMode.html" title="enum in org.apache.kudu.client">SessionConfiguration.FlushMode</a>&nbsp;getFlushMode()</pre>
<div class="block">Get the current flush mode.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>flush mode, <a href="../../../../org/apache/kudu/client/SessionConfiguration.FlushMode.html#AUTO_FLUSH_SYNC"><code>AUTO_FLUSH_SYNC</code></a> by default</dd>
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<h4>setFlushMode</h4>
<pre>void&nbsp;setFlushMode(<a href="../../../../org/apache/kudu/client/SessionConfiguration.FlushMode.html" title="enum in org.apache.kudu.client">SessionConfiguration.FlushMode</a>&nbsp;flushMode)</pre>
<div class="block">Set the new flush mode for this session.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>flushMode</code> - new flush mode, can be the same as the previous one.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></code> - if the buffer isn't empty.</dd>
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<h4>setMutationBufferSpace</h4>
<pre>void&nbsp;setMutationBufferSpace(int&nbsp;size)</pre>
<div class="block">Set the number of operations that can be buffered.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>size</code> - number of ops.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></code> - if the buffer isn't empty.</dd>
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<h4>setMutationBufferLowWatermark</h4>
<pre>void&nbsp;setMutationBufferLowWatermark(float&nbsp;mutationBufferLowWatermarkPercentage)</pre>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;<span class="deprecationComment">The low watermark no longer has any effect.</span></div>
<div class="block">Set the low watermark for this session. The default is set to half the mutation buffer space.
For example, a buffer space of 1000 with a low watermark set to 50% (0.5) will start randomly
sending PleaseRetryExceptions once there's an outstanding flush and the buffer is over 500.
As the buffer gets fuller, it becomes likelier to hit the exception.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>mutationBufferLowWatermarkPercentage</code> - a new low watermark as a percentage,
has to be between 0 and 1 (inclusive). A value of 1 disables
the low watermark since it's the same as the high one</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></code> - if the buffer isn't empty or if the watermark isn't between
0 and 1</dd>
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<h4>setFlushInterval</h4>
<pre>void&nbsp;setFlushInterval(int&nbsp;interval)</pre>
<div class="block">Set the flush interval, which will be used for the next scheduling decision.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>interval</code> - interval in milliseconds.</dd>
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<h4>getTimeoutMillis</h4>
<pre>long&nbsp;getTimeoutMillis()</pre>
<div class="block">Get the current timeout.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>operation timeout in milliseconds, 0 if none was configured.</dd>
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<h4>setTimeoutMillis</h4>
<pre>void&nbsp;setTimeoutMillis(long&nbsp;timeout)</pre>
<div class="block">Sets the timeout for the next applied operations.
The default timeout is 0, which disables the timeout functionality.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>timeout</code> - Timeout in milliseconds.</dd>
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<h4>isClosed</h4>
<pre>boolean&nbsp;isClosed()</pre>
<div class="block">Returns true if this session has already been closed.</div>
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<h4>hasPendingOperations</h4>
<pre>boolean&nbsp;hasPendingOperations()</pre>
<div class="block">Check if there are operations that haven't been completely applied.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>true if operations are pending, else false.</dd>
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<h4>setExternalConsistencyMode</h4>
<pre>void&nbsp;setExternalConsistencyMode(<a href="../../../../org/apache/kudu/client/ExternalConsistencyMode.html" title="enum in org.apache.kudu.client">ExternalConsistencyMode</a>&nbsp;consistencyMode)</pre>
<div class="block">Set the new external consistency mode for this session.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>consistencyMode</code> - new external consistency mode, can the same as the previous one.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></code> - if the buffer isn't empty.</dd>
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<h4>isIgnoreAllDuplicateRows</h4>
<pre>boolean&nbsp;isIgnoreAllDuplicateRows()</pre>
<div class="block">Tells if the session is currently ignoring row errors when the whole list returned by a tablet
server is of the AlreadyPresent type.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>true if the session is enforcing this, else false</dd>
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<h4>setIgnoreAllDuplicateRows</h4>
<pre>void&nbsp;setIgnoreAllDuplicateRows(boolean&nbsp;ignoreAllDuplicateRows)</pre>
<div class="block">Configures the option to ignore all the row errors if they are all of the AlreadyPresent type.
This can be useful when it is possible for INSERT operations to be retried and fail.
The effect of enabling this is that operation responses that match this pattern will be
cleared of their row errors, meaning that we consider them successful.
TODO(KUDU-1563): Implement server side ignore capabilities to improve performance and
reliability of INSERT ignore operations.
<p>Disabled by default.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>ignoreAllDuplicateRows</code> - true if this session should enforce this, else false</dd>
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<h4>isIgnoreAllNotFoundRows</h4>
<pre>boolean&nbsp;isIgnoreAllNotFoundRows()</pre>
<div class="block">Tells if the session is currently ignoring row errors when the whole list returned by a tablet
server is of the NotFound type.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>true if the session is enforcing this, else false</dd>
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<h4>setIgnoreAllNotFoundRows</h4>
<pre>void&nbsp;setIgnoreAllNotFoundRows(boolean&nbsp;ignoreAllNotFoundRows)</pre>
<div class="block">Configures the option to ignore all the row errors if they are all of the NotFound type.
This can be useful when it is possible for DELETE operations to be retried and fail.
The effect of enabling this is that operation responses that match this pattern will be
cleared of their row errors, meaning that we consider them successful.
TODO(KUDU-1563): Implement server side ignore capabilities to improve performance and
reliability of DELETE ignore operations.
<p>Disabled by default.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>ignoreAllNotFoundRows</code> - true if this session should enforce this, else false</dd>
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<a name="countPendingErrors--">
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<h4>countPendingErrors</h4>
<pre>int&nbsp;countPendingErrors()</pre>
<div class="block">Return the number of errors which are pending. Errors may accumulate when
using <a href="../../../../org/apache/kudu/client/SessionConfiguration.FlushMode.html#AUTO_FLUSH_BACKGROUND"><code>AUTO_FLUSH_BACKGROUND</code></a> mode.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a count of errors</dd>
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<a name="getPendingErrors--">
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<h4>getPendingErrors</h4>
<pre><a href="../../../../org/apache/kudu/client/RowErrorsAndOverflowStatus.html" title="class in org.apache.kudu.client">RowErrorsAndOverflowStatus</a>&nbsp;getPendingErrors()</pre>
<div class="block">Return any errors from previous calls. If there were more errors
than could be held in the session's error storage, the overflow state is set to true.
<p>Clears the pending errors.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>an object that contains the errors and the overflow status</dd>
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