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<h1>Version 1.8.0<a class="headerlink" href="#version-1-8-0" title="Permalink to this headline">¶</a></h1>
<p class="rubric">Status of this release</p>
<p>Apache Flume 1.8.0 is the eleventh release of Flume as an Apache top-level project
(TLP). Apache Flume 1.8.0 is production-ready software.</p>
<p class="rubric">Release Documentation</p>
<ul class="simple">
<li><a class="reference external" href="content/1.8.0/FlumeUserGuide.html">Flume 1.8.0 User Guide</a> (also in <a class="reference external" href="content/1.8.0/FlumeUserGuide.pdf">pdf</a>)</li>
<li><a class="reference external" href="content/1.8.0/FlumeDeveloperGuide.html">Flume 1.8.0 Developer Guide</a> (also in <a class="reference external" href="content/1.8.0/FlumeDeveloperGuide.pdf">pdf</a>)</li>
<li><a class="reference external" href="content/1.8.0/apidocs/index.html">Flume 1.8.0 API Documentation</a></li>
</ul>
<p class="rubric">Changes</p>
<p>Release Notes - Flume - Version v1.8.0</p>
<dl class="docutils">
<dt>** New Feature</dt>
<dd><ul class="first last simple">
<li>[<a class="reference external" href="https://issues.apache.org/jira/browse/FLUME-2171">FLUME-2171</a>] - Add Interceptor to remove headers from event</li>
<li>[<a class="reference external" href="https://issues.apache.org/jira/browse/FLUME-2917">FLUME-2917</a>] - Provide netcat UDP source as alternative to TCP</li>
<li>[<a class="reference external" href="https://issues.apache.org/jira/browse/FLUME-2993">FLUME-2993</a>] - Support environment variables in configuration files</li>
</ul>
</dd>
<dt>** Improvement</dt>
<dd><ul class="first last simple">
<li>[<a class="reference external" href="https://issues.apache.org/jira/browse/FLUME-1520">FLUME-1520</a>] - Timestamp interceptor should support custom headers</li>
<li>[<a class="reference external" href="https://issues.apache.org/jira/browse/FLUME-2945">FLUME-2945</a>] - Bump java target version to 1.8</li>
<li>[<a class="reference external" href="https://issues.apache.org/jira/browse/FLUME-3020">FLUME-3020</a>] - Improve HDFSEventSink Escape Ingestion by more then 10x by not getting InetAddress on every record</li>
<li>[<a class="reference external" href="https://issues.apache.org/jira/browse/FLUME-3025">FLUME-3025</a>] - Expose FileChannel.open on JMX</li>
<li>[<a class="reference external" href="https://issues.apache.org/jira/browse/FLUME-3072">FLUME-3072</a>] - Add IP address to headers in flume log4j appender</li>
<li>[<a class="reference external" href="https://issues.apache.org/jira/browse/FLUME-3092">FLUME-3092</a>] - Extend the FileChannel’s monitoring metrics</li>
<li>[<a class="reference external" href="https://issues.apache.org/jira/browse/FLUME-3100">FLUME-3100</a>] - Support arbitrary header substitution for topic of Kafka</li>
<li>[<a class="reference external" href="https://issues.apache.org/jira/browse/FLUME-3144">FLUME-3144</a>] - Improve Log4jAppender’s performance by allowing logging collection of messages</li>
</ul>
</dd>
<dt>** Bug</dt>
<dd><ul class="first last simple">
<li>[<a class="reference external" href="https://issues.apache.org/jira/browse/FLUME-2620">FLUME-2620</a>] - File channel throws NullPointerException if a header value is null</li>
<li>[<a class="reference external" href="https://issues.apache.org/jira/browse/FLUME-2752">FLUME-2752</a>] - Flume AvroSource will leak the memory and the OOM will be happened.</li>
<li>[<a class="reference external" href="https://issues.apache.org/jira/browse/FLUME-2812">FLUME-2812</a>] - Exception in thread “SinkRunner-PollingRunner-DefaultSinkProcessor” java.lang.Error: Maximum permit count exceeded</li>
<li>[<a class="reference external" href="https://issues.apache.org/jira/browse/FLUME-2857">FLUME-2857</a>] - Kafka Source/Channel/Sink does not restore default values when live update config</li>
<li>[<a class="reference external" href="https://issues.apache.org/jira/browse/FLUME-2905">FLUME-2905</a>] - NetcatSource - Socket not closed when an exception is encountered during start() leading to file descriptor leaks</li>
<li>[<a class="reference external" href="https://issues.apache.org/jira/browse/FLUME-2991">FLUME-2991</a>] - ExecSource command execution starts before starting the sourceCounter</li>
<li>[<a class="reference external" href="https://issues.apache.org/jira/browse/FLUME-3027">FLUME-3027</a>] - Kafka Channel should clear offsets map after commit</li>
<li>[<a class="reference external" href="https://issues.apache.org/jira/browse/FLUME-3031">FLUME-3031</a>] - sequence source should reset its counter for event body on channel exception</li>
<li>[<a class="reference external" href="https://issues.apache.org/jira/browse/FLUME-3043">FLUME-3043</a>] - KafkaSink SinkCallback throws NullPointerException when Log4J level is debug</li>
<li>[<a class="reference external" href="https://issues.apache.org/jira/browse/FLUME-3046">FLUME-3046</a>] - Kafka Sink and Source Configuration Improvements</li>
<li>[<a class="reference external" href="https://issues.apache.org/jira/browse/FLUME-3049">FLUME-3049</a>] - Wrapping the exception into SecurityException in UGIExecutor.execute hides the original one</li>
<li>[<a class="reference external" href="https://issues.apache.org/jira/browse/FLUME-3057">FLUME-3057</a>] - Build fails due to unsupported snappy-java version on ppc64le</li>
<li>[<a class="reference external" href="https://issues.apache.org/jira/browse/FLUME-3080">FLUME-3080</a>] - Close failure in HDFS Sink might cause data loss</li>
<li>[<a class="reference external" href="https://issues.apache.org/jira/browse/FLUME-3083">FLUME-3083</a>] - Taildir source can miss events if file updated in same second as file close</li>
<li>[<a class="reference external" href="https://issues.apache.org/jira/browse/FLUME-3085">FLUME-3085</a>] - HDFS Sink can skip flushing some BucketWriters, might lead to data loss</li>
<li>[<a class="reference external" href="https://issues.apache.org/jira/browse/FLUME-3112">FLUME-3112</a>] - Upgrade jackson-core library dependency</li>
<li>[<a class="reference external" href="https://issues.apache.org/jira/browse/FLUME-3127">FLUME-3127</a>] - Upgrade libfb303 library dependency</li>
<li>[<a class="reference external" href="https://issues.apache.org/jira/browse/FLUME-3131">FLUME-3131</a>] - Upgrade spring framework library dependencies</li>
<li>[<a class="reference external" href="https://issues.apache.org/jira/browse/FLUME-3132">FLUME-3132</a>] - Upgrade tomcat jasper library dependencies</li>
<li>[<a class="reference external" href="https://issues.apache.org/jira/browse/FLUME-3135">FLUME-3135</a>] - property logger in org.apache.flume.interceptor.RegexFilteringInterceptor confused</li>
<li>[<a class="reference external" href="https://issues.apache.org/jira/browse/FLUME-3141">FLUME-3141</a>] - Small typo found in RegexHbaseEventSerializer.java</li>
<li>[<a class="reference external" href="https://issues.apache.org/jira/browse/FLUME-3152">FLUME-3152</a>] - Add Flume Metric for Backup Checkpoint Errors</li>
<li>[<a class="reference external" href="https://issues.apache.org/jira/browse/FLUME-3155">FLUME-3155</a>] - Use batch mode in mvn to fix Travis CI error</li>
<li>[<a class="reference external" href="https://issues.apache.org/jira/browse/FLUME-3157">FLUME-3157</a>] - Refactor TestHDFSEventSinkOnMiniCluster to not use LeaseManager private API</li>
<li>[<a class="reference external" href="https://issues.apache.org/jira/browse/FLUME-3173">FLUME-3173</a>] - Upgrade joda-time</li>
<li>[<a class="reference external" href="https://issues.apache.org/jira/browse/FLUME-3174">FLUME-3174</a>] - HdfsSink AWS S3A authentication does not work on JDK 8</li>
<li>[<a class="reference external" href="https://issues.apache.org/jira/browse/FLUME-3175">FLUME-3175</a>] - Javadoc generation fails due to Java8’s strict doclint</li>
</ul>
</dd>
<dt>** Documentation</dt>
<dd><ul class="first last simple">
<li>[<a class="reference external" href="https://issues.apache.org/jira/browse/FLUME-2175">FLUME-2175</a>] - Update Developer Guide with notes on how to upgrade Protocol Buffer version</li>
<li>[<a class="reference external" href="https://issues.apache.org/jira/browse/FLUME-2817">FLUME-2817</a>] - Sink for multi-agent flow example in user guide is set up incorrectly</li>
</ul>
</dd>
<dt>** Wish</dt>
<dd><ul class="first last simple">
<li>[<a class="reference external" href="https://issues.apache.org/jira/browse/FLUME-2579">FLUME-2579</a>] - JMS source support durable subscriptions and message listening</li>
</ul>
</dd>
<dt>** Question</dt>
<dd><ul class="first last simple">
<li>[<a class="reference external" href="https://issues.apache.org/jira/browse/FLUME-2427">FLUME-2427</a>] - java.lang.NoSuchMethodException and warning on HDFS (S3) sink</li>
</ul>
</dd>
<dt>** Task</dt>
<dd><ul class="first last simple">
<li>[<a class="reference external" href="https://issues.apache.org/jira/browse/FLUME-3093">FLUME-3093</a>] - Groundwork for version changes in root pom</li>
<li>[<a class="reference external" href="https://issues.apache.org/jira/browse/FLUME-3154">FLUME-3154</a>] - Add HBase client version check to AsyncHBaseSink and HBaseSink</li>
</ul>
</dd>
<dt>** Test</dt>
<dd><ul class="first last simple">
<li>[<a class="reference external" href="https://issues.apache.org/jira/browse/FLUME-2997">FLUME-2997</a>] - Fix flaky junit test in SpillableMemoryChannel</li>
<li>[<a class="reference external" href="https://issues.apache.org/jira/browse/FLUME-3002">FLUME-3002</a>] - Some tests in TestBucketWriter are flaky</li>
</ul>
</dd>
</dl>
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