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| <div class="title">hdfs-table-writer.cc</div> </div> |
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| <a href="hdfs-table-writer_8cc.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// Copyright 2012 Cloudera Inc.</span></div> |
| <div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">//</span></div> |
| <div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// Licensed under the Apache License, Version 2.0 (the "License");</span></div> |
| <div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// you may not use this file except in compliance with the License.</span></div> |
| <div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// You may obtain a copy of the License at</span></div> |
| <div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">//</span></div> |
| <div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">// http://www.apache.org/licenses/LICENSE-2.0</span></div> |
| <div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">//</span></div> |
| <div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">// Unless required by applicable law or agreed to in writing, software</span></div> |
| <div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">// distributed under the License is distributed on an "AS IS" BASIS,</span></div> |
| <div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div> |
| <div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">// See the License for the specific language governing permissions and</span></div> |
| <div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">// limitations under the License.</span></div> |
| <div class="line"><a name="l00014"></a><span class="lineno"> 14</span> </div> |
| <div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include "<a class="code" href="hdfs-table-writer_8h.html">exec/hdfs-table-writer.h</a>"</span></div> |
| <div class="line"><a name="l00016"></a><span class="lineno"> 16</span> </div> |
| <div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include "<a class="code" href="names_8h.html">common/names.h</a>"</span></div> |
| <div class="line"><a name="l00018"></a><span class="lineno"> 18</span> </div> |
| <div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="keyword">namespace </span>impala {</div> |
| <div class="line"><a name="l00020"></a><span class="lineno"> 20</span> </div> |
| <div class="line"><a name="l00021"></a><span class="lineno"><a class="line" href="classimpala_1_1HdfsTableWriter.html#a513152e9db258fa7efd3cc9c583c9a54"> 21</a></span> <a class="code" href="classimpala_1_1HdfsTableWriter.html#a513152e9db258fa7efd3cc9c583c9a54">HdfsTableWriter::HdfsTableWriter</a>(<a class="code" href="classimpala_1_1HdfsTableSink.html">HdfsTableSink</a>* parent,</div> |
| <div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  <a class="code" href="classimpala_1_1RuntimeState.html">RuntimeState</a>* state, <a class="code" href="structimpala_1_1OutputPartition.html">OutputPartition</a>* output,</div> |
| <div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  <span class="keyword">const</span> <a class="code" href="classimpala_1_1HdfsPartitionDescriptor.html">HdfsPartitionDescriptor</a>* partition_desc,</div> |
| <div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  <span class="keyword">const</span> <a class="code" href="classimpala_1_1HdfsTableDescriptor.html">HdfsTableDescriptor</a>* table_desc,</div> |
| <div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  <span class="keyword">const</span> vector<ExprContext*>& output_expr_ctxs)</div> |
| <div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  : parent_(parent),</div> |
| <div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  state_(state),</div> |
| <div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  output_(output),</div> |
| <div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  table_desc_(table_desc),</div> |
| <div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  output_expr_ctxs_(output_expr_ctxs) {</div> |
| <div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  <span class="keywordtype">int</span> num_non_partition_cols =</div> |
| <div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  <a class="code" href="classimpala_1_1HdfsTableWriter.html#ae334368ceff2a98e639a2f249bd97fb4">table_desc_</a>-><a class="code" href="classimpala_1_1TableDescriptor.html#a665ceaf9c184ec39544c3ecc448c0d11">num_cols</a>() - <a class="code" href="classimpala_1_1HdfsTableWriter.html#ae334368ceff2a98e639a2f249bd97fb4">table_desc_</a>-><a class="code" href="classimpala_1_1TableDescriptor.html#aa5b2e225d0d68fa5ef0313db79d0ffb9">num_clustering_cols</a>();</div> |
| <div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  DCHECK_GE(<a class="code" href="classimpala_1_1HdfsTableWriter.html#a3601c468e238682d353bd48a51ba7432">output_expr_ctxs_</a>.size(), num_non_partition_cols) << <a class="code" href="classimpala_1_1HdfsTableWriter.html#a7faad5d8d7b9b63df88fc64634e8c68e">parent_</a>-><a class="code" href="classimpala_1_1HdfsTableSink.html#a938c70d0fcf84b3c606761be535918ac">DebugString</a>();</div> |
| <div class="line"><a name="l00034"></a><span class="lineno"> 34</span> }</div> |
| <div class="line"><a name="l00035"></a><span class="lineno"> 35</span> </div> |
| <div class="line"><a name="l00036"></a><span class="lineno"><a class="line" href="classimpala_1_1HdfsTableWriter.html#a11edde18e07638fd077e61fd3a3df80e"> 36</a></span> <a class="code" href="classimpala_1_1Status.html">Status</a> <a class="code" href="classimpala_1_1HdfsTableWriter.html#a1be7c5b50e90418d3bc60984a2788179">HdfsTableWriter::Write</a>(<span class="keyword">const</span> uint8_t* data, int32_t len) {</div> |
| <div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  DCHECK_GE(len, 0);</div> |
| <div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keywordtype">int</span> ret = hdfsWrite(<a class="code" href="classimpala_1_1HdfsTableWriter.html#a25eed1b5b3cb444d8bfdc62890238ff7">output_</a>-><a class="code" href="structimpala_1_1OutputPartition.html#a86e51e4750dce9b115b88a61eccef63b">hdfs_connection</a>, <a class="code" href="classimpala_1_1HdfsTableWriter.html#a25eed1b5b3cb444d8bfdc62890238ff7">output_</a>-><a class="code" href="structimpala_1_1OutputPartition.html#a87c2d62b1ea6cc0a4a6c0fb43918c860">tmp_hdfs_file</a>, data, len);</div> |
| <div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keywordflow">if</span> (ret == -1) {</div> |
| <div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keywordtype">string</span> error_msg = <a class="code" href="namespaceimpala.html#aed2594aa39638a14b42554a4e3229dcf">GetHdfsErrorMsg</a>(<span class="stringliteral">""</span>);</div> |
| <div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  stringstream msg;</div> |
| <div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  msg << <span class="stringliteral">"Failed to write data (length: "</span> << len</div> |
| <div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  << <span class="stringliteral">") to Hdfs file: "</span> << <a class="code" href="classimpala_1_1HdfsTableWriter.html#a25eed1b5b3cb444d8bfdc62890238ff7">output_</a>-><a class="code" href="structimpala_1_1OutputPartition.html#a9d0676f3ddac66add883e7f636be908b">current_file_name</a></div> |
| <div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  << <span class="stringliteral">" "</span> << error_msg;</div> |
| <div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keywordflow">return</span> <a class="code" href="classimpala_1_1Status.html">Status</a>(msg.str());</div> |
| <div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  }</div> |
| <div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <a class="code" href="runtime-profile_8h.html#a0842f330c18b3e4e53e13655add0310a">COUNTER_ADD</a>(<a class="code" href="classimpala_1_1HdfsTableWriter.html#a7faad5d8d7b9b63df88fc64634e8c68e">parent_</a>-><a class="code" href="classimpala_1_1HdfsTableSink.html#aeacecfe6593f821952a9f0ee374ebd6d">bytes_written_counter</a>(), len);</div> |
| <div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <a class="code" href="classimpala_1_1HdfsTableWriter.html#a017d589ce2bdcc502582924169f5d2d7">stats_</a>.bytes_written += len;</div> |
| <div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keywordflow">return</span> <a class="code" href="classimpala_1_1Status.html#a580565665ea944eb64f3f495b1bee1e0">Status::OK</a>;</div> |
| <div class="line"><a name="l00050"></a><span class="lineno"> 50</span> }</div> |
| <div class="line"><a name="l00051"></a><span class="lineno"> 51</span> }</div> |
| <div class="ttc" id="classimpala_1_1HdfsTableWriter_html_a7faad5d8d7b9b63df88fc64634e8c68e"><div class="ttname"><a href="classimpala_1_1HdfsTableWriter.html#a7faad5d8d7b9b63df88fc64634e8c68e">impala::HdfsTableWriter::parent_</a></div><div class="ttdeci">HdfsTableSink * parent_</div><div class="ttdoc">Parent table sink object. </div><div class="ttdef"><b>Definition:</b> <a href="hdfs-table-writer_8h_source.html#l00112">hdfs-table-writer.h:112</a></div></div> |
| <div class="ttc" id="classimpala_1_1HdfsTableDescriptor_html"><div class="ttname"><a href="classimpala_1_1HdfsTableDescriptor.html">impala::HdfsTableDescriptor</a></div><div class="ttdef"><b>Definition:</b> <a href="descriptors_8h_source.html#l00226">descriptors.h:226</a></div></div> |
| <div class="ttc" id="structimpala_1_1OutputPartition_html_a9d0676f3ddac66add883e7f636be908b"><div class="ttname"><a href="structimpala_1_1OutputPartition.html#a9d0676f3ddac66add883e7f636be908b">impala::OutputPartition::current_file_name</a></div><div class="ttdeci">std::string current_file_name</div><div class="ttdef"><b>Definition:</b> <a href="hdfs-table-sink_8h_source.html#l00055">hdfs-table-sink.h:55</a></div></div> |
| <div class="ttc" id="classimpala_1_1HdfsTableWriter_html_a1be7c5b50e90418d3bc60984a2788179"><div class="ttname"><a href="classimpala_1_1HdfsTableWriter.html#a1be7c5b50e90418d3bc60984a2788179">impala::HdfsTableWriter::Write</a></div><div class="ttdeci">Status Write(const char *data, int32_t len)</div><div class="ttdoc">Write to the current hdfs file. </div><div class="ttdef"><b>Definition:</b> <a href="hdfs-table-writer_8h_source.html#l00101">hdfs-table-writer.h:101</a></div></div> |
| <div class="ttc" id="classimpala_1_1TableDescriptor_html_a665ceaf9c184ec39544c3ecc448c0d11"><div class="ttname"><a href="classimpala_1_1TableDescriptor.html#a665ceaf9c184ec39544c3ecc448c0d11">impala::TableDescriptor::num_cols</a></div><div class="ttdeci">int num_cols() const </div><div class="ttdef"><b>Definition:</b> <a href="descriptors_8h_source.html#l00152">descriptors.h:152</a></div></div> |
| <div class="ttc" id="structimpala_1_1OutputPartition_html"><div class="ttname"><a href="structimpala_1_1OutputPartition.html">impala::OutputPartition</a></div><div class="ttdef"><b>Definition:</b> <a href="hdfs-table-sink_8h_source.html#l00040">hdfs-table-sink.h:40</a></div></div> |
| <div class="ttc" id="classimpala_1_1HdfsTableWriter_html_ae334368ceff2a98e639a2f249bd97fb4"><div class="ttname"><a href="classimpala_1_1HdfsTableWriter.html#ae334368ceff2a98e639a2f249bd97fb4">impala::HdfsTableWriter::table_desc_</a></div><div class="ttdeci">const HdfsTableDescriptor * table_desc_</div><div class="ttdoc">Table descriptor of table to be written. </div><div class="ttdef"><b>Definition:</b> <a href="hdfs-table-writer_8h_source.html#l00121">hdfs-table-writer.h:121</a></div></div> |
| <div class="ttc" id="runtime-profile_8h_html_a0842f330c18b3e4e53e13655add0310a"><div class="ttname"><a href="runtime-profile_8h.html#a0842f330c18b3e4e53e13655add0310a">COUNTER_ADD</a></div><div class="ttdeci">#define COUNTER_ADD(c, v)</div><div class="ttdef"><b>Definition:</b> <a href="runtime-profile_8h_source.html#l00055">runtime-profile.h:55</a></div></div> |
| <div class="ttc" id="classimpala_1_1HdfsTableSink_html_a938c70d0fcf84b3c606761be535918ac"><div class="ttname"><a href="classimpala_1_1HdfsTableSink.html#a938c70d0fcf84b3c606761be535918ac">impala::HdfsTableSink::DebugString</a></div><div class="ttdeci">std::string DebugString() const </div><div class="ttdef"><b>Definition:</b> <a href="hdfs-table-sink_8cc_source.html#l00643">hdfs-table-sink.cc:643</a></div></div> |
| <div class="ttc" id="classimpala_1_1HdfsTableWriter_html_a513152e9db258fa7efd3cc9c583c9a54"><div class="ttname"><a href="classimpala_1_1HdfsTableWriter.html#a513152e9db258fa7efd3cc9c583c9a54">impala::HdfsTableWriter::HdfsTableWriter</a></div><div class="ttdeci">HdfsTableWriter(HdfsTableSink *parent, RuntimeState *state, OutputPartition *output_partition, const HdfsPartitionDescriptor *partition_desc, const HdfsTableDescriptor *table_desc, const std::vector< ExprContext * > &output_expr_ctxs)</div><div class="ttdef"><b>Definition:</b> <a href="hdfs-table-writer_8cc_source.html#l00021">hdfs-table-writer.cc:21</a></div></div> |
| <div class="ttc" id="classimpala_1_1HdfsTableSink_html"><div class="ttname"><a href="classimpala_1_1HdfsTableSink.html">impala::HdfsTableSink</a></div><div class="ttdef"><b>Definition:</b> <a href="hdfs-table-sink_8h_source.html#l00122">hdfs-table-sink.h:122</a></div></div> |
| <div class="ttc" id="classimpala_1_1Status_html"><div class="ttname"><a href="classimpala_1_1Status.html">impala::Status</a></div><div class="ttdef"><b>Definition:</b> <a href="status_8h_source.html#l00081">status.h:81</a></div></div> |
| <div class="ttc" id="structimpala_1_1OutputPartition_html_a86e51e4750dce9b115b88a61eccef63b"><div class="ttname"><a href="structimpala_1_1OutputPartition.html#a86e51e4750dce9b115b88a61eccef63b">impala::OutputPartition::hdfs_connection</a></div><div class="ttdeci">hdfsFS hdfs_connection</div><div class="ttdoc">Connection to hdfs. </div><div class="ttdef"><b>Definition:</b> <a href="hdfs-table-sink_8h_source.html#l00071">hdfs-table-sink.h:71</a></div></div> |
| <div class="ttc" id="classimpala_1_1RuntimeState_html"><div class="ttname"><a href="classimpala_1_1RuntimeState.html">impala::RuntimeState</a></div><div class="ttdef"><b>Definition:</b> <a href="runtime-state_8h_source.html#l00069">runtime-state.h:69</a></div></div> |
| <div class="ttc" id="classimpala_1_1TableDescriptor_html_aa5b2e225d0d68fa5ef0313db79d0ffb9"><div class="ttname"><a href="classimpala_1_1TableDescriptor.html#aa5b2e225d0d68fa5ef0313db79d0ffb9">impala::TableDescriptor::num_clustering_cols</a></div><div class="ttdeci">int num_clustering_cols() const </div><div class="ttdef"><b>Definition:</b> <a href="descriptors_8h_source.html#l00153">descriptors.h:153</a></div></div> |
| <div class="ttc" id="classimpala_1_1HdfsTableSink_html_aeacecfe6593f821952a9f0ee374ebd6d"><div class="ttname"><a href="classimpala_1_1HdfsTableSink.html#aeacecfe6593f821952a9f0ee374ebd6d">impala::HdfsTableSink::bytes_written_counter</a></div><div class="ttdeci">RuntimeProfile::Counter * bytes_written_counter()</div><div class="ttdef"><b>Definition:</b> <a href="hdfs-table-sink_8h_source.html#l00152">hdfs-table-sink.h:152</a></div></div> |
| <div class="ttc" id="structimpala_1_1OutputPartition_html_a87c2d62b1ea6cc0a4a6c0fb43918c860"><div class="ttname"><a href="structimpala_1_1OutputPartition.html#a87c2d62b1ea6cc0a4a6c0fb43918c860">impala::OutputPartition::tmp_hdfs_file</a></div><div class="ttdeci">hdfsFile tmp_hdfs_file</div><div class="ttdoc">Hdfs file at tmp_hdfs_file_name. </div><div class="ttdef"><b>Definition:</b> <a href="hdfs-table-sink_8h_source.html#l00074">hdfs-table-sink.h:74</a></div></div> |
| <div class="ttc" id="classimpala_1_1HdfsTableWriter_html_a3601c468e238682d353bd48a51ba7432"><div class="ttname"><a href="classimpala_1_1HdfsTableWriter.html#a3601c468e238682d353bd48a51ba7432">impala::HdfsTableWriter::output_expr_ctxs_</a></div><div class="ttdeci">std::vector< ExprContext * > output_expr_ctxs_</div><div class="ttdoc">Expressions that materialize output values. </div><div class="ttdef"><b>Definition:</b> <a href="hdfs-table-writer_8h_source.html#l00124">hdfs-table-writer.h:124</a></div></div> |
| <div class="ttc" id="classimpala_1_1HdfsTableWriter_html_a017d589ce2bdcc502582924169f5d2d7"><div class="ttname"><a href="classimpala_1_1HdfsTableWriter.html#a017d589ce2bdcc502582924169f5d2d7">impala::HdfsTableWriter::stats_</a></div><div class="ttdeci">TInsertStats stats_</div><div class="ttdoc">Subclass should populate any file format specific stats. </div><div class="ttdef"><b>Definition:</b> <a href="hdfs-table-writer_8h_source.html#l00127">hdfs-table-writer.h:127</a></div></div> |
| <div class="ttc" id="classimpala_1_1Status_html_a580565665ea944eb64f3f495b1bee1e0"><div class="ttname"><a href="classimpala_1_1Status.html#a580565665ea944eb64f3f495b1bee1e0">impala::Status::OK</a></div><div class="ttdeci">static const Status OK</div><div class="ttdef"><b>Definition:</b> <a href="status_8h_source.html#l00087">status.h:87</a></div></div> |
| <div class="ttc" id="classimpala_1_1HdfsPartitionDescriptor_html"><div class="ttname"><a href="classimpala_1_1HdfsPartitionDescriptor.html">impala::HdfsPartitionDescriptor</a></div><div class="ttdoc">Metadata for a single partition inside an Hdfs table. </div><div class="ttdef"><b>Definition:</b> <a href="descriptors_8h_source.html#l00177">descriptors.h:177</a></div></div> |
| <div class="ttc" id="names_8h_html"><div class="ttname"><a href="names_8h.html">names.h</a></div></div> |
| <div class="ttc" id="hdfs-table-writer_8h_html"><div class="ttname"><a href="hdfs-table-writer_8h.html">hdfs-table-writer.h</a></div></div> |
| <div class="ttc" id="namespaceimpala_html_aed2594aa39638a14b42554a4e3229dcf"><div class="ttname"><a href="namespaceimpala.html#aed2594aa39638a14b42554a4e3229dcf">impala::GetHdfsErrorMsg</a></div><div class="ttdeci">string GetHdfsErrorMsg(const string &prefix, const string &file)</div><div class="ttdef"><b>Definition:</b> <a href="hdfs-util_8cc_source.html#l00026">hdfs-util.cc:26</a></div></div> |
| <div class="ttc" id="classimpala_1_1HdfsTableWriter_html_a25eed1b5b3cb444d8bfdc62890238ff7"><div class="ttname"><a href="classimpala_1_1HdfsTableWriter.html#a25eed1b5b3cb444d8bfdc62890238ff7">impala::HdfsTableWriter::output_</a></div><div class="ttdeci">OutputPartition * output_</div><div class="ttdoc">Structure describing partition written to by this writer. </div><div class="ttdef"><b>Definition:</b> <a href="hdfs-table-writer_8h_source.html#l00118">hdfs-table-writer.h:118</a></div></div> |
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