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| <h1 class="title">Apache Hadoop Common 3.3.1 API</h1> |
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| <table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Apache Hadoop Common API table, listing packages, and an explanation"> |
| <caption><span>Apache Hadoop Common API</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Package</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tbody> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/package-summary.html">org.apache.hadoop</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/conf/package-summary.html">org.apache.hadoop.conf</a></td> |
| <td class="colLast"> |
| <div class="block">Configuration of system parameters.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/crypto/package-summary.html">org.apache.hadoop.crypto</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/crypto/key/package-summary.html">org.apache.hadoop.crypto.key</a></td> |
| <td class="colLast"> |
| <div class="block">Licensed to the Apache Software Foundation (ASF) under one |
| or more contributor license agreements.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/crypto/key/kms/package-summary.html">org.apache.hadoop.crypto.key.kms</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/crypto/random/package-summary.html">org.apache.hadoop.crypto.random</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/fs/package-summary.html">org.apache.hadoop.fs</a></td> |
| <td class="colLast"> |
| <div class="block">An abstract file system API.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/fs/crypto/package-summary.html">org.apache.hadoop.fs.crypto</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/fs/ftp/package-summary.html">org.apache.hadoop.fs.ftp</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/fs/http/package-summary.html">org.apache.hadoop.fs.http</a></td> |
| <td class="colLast"> |
| <div class="block">Filesystem implementations that allow Hadoop to read directly from |
| HTTP / HTTPS endpoints.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/fs/protocolPB/package-summary.html">org.apache.hadoop.fs.protocolPB</a></td> |
| <td class="colLast"> |
| <div class="block">Licensed to the Apache Software Foundation (ASF) under one |
| or more contributor license agreements.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/fs/sftp/package-summary.html">org.apache.hadoop.fs.sftp</a></td> |
| <td class="colLast"> |
| <div class="block">SFTP FileSystem package.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/fs/shell/find/package-summary.html">org.apache.hadoop.fs.shell.find</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/fs/statistics/package-summary.html">org.apache.hadoop.fs.statistics</a></td> |
| <td class="colLast"> |
| <div class="block">This package contains support for statistic collection and reporting.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/ha/package-summary.html">org.apache.hadoop.ha</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/ha/proto/package-summary.html">org.apache.hadoop.ha.proto</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/ha/protocolPB/package-summary.html">org.apache.hadoop.ha.protocolPB</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/http/lib/package-summary.html">org.apache.hadoop.http.lib</a></td> |
| <td class="colLast"> |
| <div class="block">This package provides user-selectable (via configuration) classes that add |
| functionality to the web UI.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/io/package-summary.html">org.apache.hadoop.io</a></td> |
| <td class="colLast"> |
| <div class="block">Generic i/o code for use when reading and writing data to the network, |
| to databases, and to files.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/io/compress/package-summary.html">org.apache.hadoop.io.compress</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/io/erasurecode/package-summary.html">org.apache.hadoop.io.erasurecode</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/io/erasurecode/coder/util/package-summary.html">org.apache.hadoop.io.erasurecode.coder.util</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/io/erasurecode/grouper/package-summary.html">org.apache.hadoop.io.erasurecode.grouper</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/io/file/tfile/package-summary.html">org.apache.hadoop.io.file.tfile</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/io/serializer/package-summary.html">org.apache.hadoop.io.serializer</a></td> |
| <td class="colLast"> |
| <div class="block"> |
| This package provides a mechanism for using different serialization frameworks |
| in Hadoop.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/io/serializer/avro/package-summary.html">org.apache.hadoop.io.serializer.avro</a></td> |
| <td class="colLast"> |
| <div class="block"> |
| This package provides Avro serialization in Hadoop.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/ipc/proto/package-summary.html">org.apache.hadoop.ipc.proto</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/ipc/protobuf/package-summary.html">org.apache.hadoop.ipc.protobuf</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/ipc/protocolPB/package-summary.html">org.apache.hadoop.ipc.protocolPB</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/log/package-summary.html">org.apache.hadoop.log</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/log/metrics/package-summary.html">org.apache.hadoop.log.metrics</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/metrics2/package-summary.html">org.apache.hadoop.metrics2</a></td> |
| <td class="colLast"> |
| <div class="block">Metrics 2.0</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/metrics2/annotation/package-summary.html">org.apache.hadoop.metrics2.annotation</a></td> |
| <td class="colLast"> |
| <div class="block">Annotation interfaces for metrics instrumentation</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/metrics2/filter/package-summary.html">org.apache.hadoop.metrics2.filter</a></td> |
| <td class="colLast"> |
| <div class="block">Builtin metrics filters (to be used in metrics config files)</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/metrics2/lib/package-summary.html">org.apache.hadoop.metrics2.lib</a></td> |
| <td class="colLast"> |
| <div class="block">A collection of library classes for implementing metrics sources</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/metrics2/sink/package-summary.html">org.apache.hadoop.metrics2.sink</a></td> |
| <td class="colLast"> |
| <div class="block">Builtin metrics sinks</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/metrics2/sink/ganglia/package-summary.html">org.apache.hadoop.metrics2.sink.ganglia</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/metrics2/source/package-summary.html">org.apache.hadoop.metrics2.source</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/metrics2/util/package-summary.html">org.apache.hadoop.metrics2.util</a></td> |
| <td class="colLast"> |
| <div class="block">General helpers for implementing source and sinks</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/net/package-summary.html">org.apache.hadoop.net</a></td> |
| <td class="colLast"> |
| <div class="block">Network-related classes.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/net/unix/package-summary.html">org.apache.hadoop.net.unix</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/security/package-summary.html">org.apache.hadoop.security</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/security/alias/package-summary.html">org.apache.hadoop.security.alias</a></td> |
| <td class="colLast"> |
| <div class="block">Provides the hadoop credential provider API.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/security/authentication/server/package-summary.html">org.apache.hadoop.security.authentication.server</a></td> |
| <td class="colLast"> |
| <div class="block">Provides the server-side framework for authentication.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/security/authorize/package-summary.html">org.apache.hadoop.security.authorize</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/security/http/package-summary.html">org.apache.hadoop.security.http</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/security/proto/package-summary.html">org.apache.hadoop.security.proto</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/security/protocolPB/package-summary.html">org.apache.hadoop.security.protocolPB</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/security/ssl/package-summary.html">org.apache.hadoop.security.ssl</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/security/token/package-summary.html">org.apache.hadoop.security.token</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/security/token/delegation/web/package-summary.html">org.apache.hadoop.security.token.delegation.web</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/service/package-summary.html">org.apache.hadoop.service</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/service/launcher/package-summary.html">org.apache.hadoop.service.launcher</a></td> |
| <td class="colLast"> |
| <div class="block">This package contains classes, interfaces and exceptions to launch |
| YARN services from the command line.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/tools/package-summary.html">org.apache.hadoop.tools</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/tools/proto/package-summary.html">org.apache.hadoop.tools.proto</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/tools/protocolPB/package-summary.html">org.apache.hadoop.tools.protocolPB</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/tracing/package-summary.html">org.apache.hadoop.tracing</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/util/package-summary.html">org.apache.hadoop.util</a></td> |
| <td class="colLast"> |
| <div class="block">Common utilities.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/util/bloom/package-summary.html">org.apache.hadoop.util.bloom</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/util/curator/package-summary.html">org.apache.hadoop.util.curator</a></td> |
| <td class="colLast"> |
| <div class="block">This package provides utilities to interact with Curator ZooKeeper.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/util/functional/package-summary.html">org.apache.hadoop.util.functional</a></td> |
| <td class="colLast"> |
| <div class="block">Support for functional programming within the Hadoop APIs.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="org/apache/hadoop/util/hash/package-summary.html">org.apache.hadoop.util.hash</a></td> |
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