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| <div class="title">child-query.cc</div> </div> |
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| <a href="child-query_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="child-query_8h.html">service/child-query.h</a>"</span></div> |
| <div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include "<a class="code" href="impala-server_8inline_8h.html">service/impala-server.inline.h</a>"</span></div> |
| <div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include "<a class="code" href="query-exec-state_8h.html">service/query-exec-state.h</a>"</span></div> |
| <div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#include "<a class="code" href="debug-util_8h.html">util/debug-util.h</a>"</span></div> |
| <div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div> |
| <div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include "<a class="code" href="names_8h.html">common/names.h</a>"</span></div> |
| <div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div> |
| <div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="keyword">using namespace </span>impala;</div> |
| <div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="keyword">using namespace </span>apache::hive::service::cli::thrift;</div> |
| <div class="line"><a name="l00024"></a><span class="lineno"> 24</span> </div> |
| <div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="keyword">namespace </span>impala {</div> |
| <div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div> |
| <div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="keyword">const</span> <span class="keywordtype">string</span> <a class="code" href="classimpala_1_1ChildQuery.html#aa172384bd0f253e7bd28195f43f9c8ac">ChildQuery::PARENT_QUERY_OPT</a> = <span class="stringliteral">"impala.parent_query_id"</span>;</div> |
| <div class="line"><a name="l00028"></a><span class="lineno"> 28</span> </div> |
| <div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment">// To detect cancellation of the parent query this function checks IsCancelled() before</span></div> |
| <div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment">// any HS2 "RPC" into the impala server. It is important not to hold any locks (in</span></div> |
| <div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment">// particular the parent query's lock_) while invoking HS2 functions to avoid deadlock.</span></div> |
| <div class="line"><a name="l00032"></a><span class="lineno"><a class="line" href="classimpala_1_1ChildQuery.html#a528d42ce334d1328fc597bbfe981a0b7"> 32</a></span> <a class="code" href="classimpala_1_1Status.html">Status</a> <a class="code" href="classimpala_1_1ChildQuery.html#a528d42ce334d1328fc597bbfe981a0b7">ChildQuery::ExecAndFetch</a>() {</div> |
| <div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <span class="keyword">const</span> TUniqueId& session_id = parent_exec_state_->session_id();</div> |
| <div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  <a class="code" href="logging_8h.html#a916e38366cee7c32fd5fae7e2ee5e4a9">VLOG_QUERY</a> << <span class="stringliteral">"Executing child query: "</span> << query_ << <span class="stringliteral">" in session "</span></div> |
| <div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  << <a class="code" href="namespaceimpala.html#a19e01fc90bc956ac7e1a735d2bea5a5e">PrintId</a>(session_id);</div> |
| <div class="line"><a name="l00036"></a><span class="lineno"> 36</span> </div> |
| <div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="comment">// Create HS2 request and response structs.</span></div> |
| <div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <a class="code" href="classimpala_1_1Status.html">Status</a> status;</div> |
| <div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  TExecuteStatementResp exec_stmt_resp;</div> |
| <div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  TExecuteStatementReq exec_stmt_req;</div> |
| <div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <a class="code" href="classimpala_1_1ImpalaServer.html#aba5efe9bc02d5a0cba55767fb7fb0d26">ImpalaServer::TUniqueIdToTHandleIdentifier</a>(session_id, session_id,</div> |
| <div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  &exec_stmt_req.sessionHandle.sessionId);</div> |
| <div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  exec_stmt_req.__set_statement(query_);</div> |
| <div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  SetQueryOptions(parent_exec_state_->exec_request().query_options, &exec_stmt_req);</div> |
| <div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  exec_stmt_req.confOverlay[PARENT_QUERY_OPT] = <a class="code" href="namespaceimpala.html#a19e01fc90bc956ac7e1a735d2bea5a5e">PrintId</a>(parent_exec_state_->query_id());</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>  <span class="comment">// Starting executing of the child query and setting is_running are not made atomic</span></div> |
| <div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="comment">// because holding a lock while calling into the parent_server_ may result in deadlock.</span></div> |
| <div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="comment">// Cancellation is checked immediately after setting is_running_ below.</span></div> |
| <div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="comment">// The order of the following three steps is important:</span></div> |
| <div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="comment">// 1. Start query execution before setting is_running_ to ensure that</span></div> |
| <div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="comment">// a concurrent Cancel() initiated by the parent is a no-op.</span></div> |
| <div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="comment">// 2. Set the hs2_handle_ before is_running_ to ensure there is a proper handle</span></div> |
| <div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="comment">// for Cancel() to use.</span></div> |
| <div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="comment">// 3. Set is_running_ to true. Once is_running_ is set, the child query</span></div> |
| <div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="comment">// can be cancelled via Cancel().</span></div> |
| <div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <a class="code" href="status_8h.html#a85f7d0e774e15eb35b74f53264305e16">RETURN_IF_ERROR</a>(IsCancelled());</div> |
| <div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  parent_server_->ExecuteStatement(exec_stmt_resp, exec_stmt_req);</div> |
| <div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  hs2_handle_ = exec_stmt_resp.operationHandle;</div> |
| <div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  {</div> |
| <div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  lock_guard<mutex> l(<a class="code" href="namespaceimpala.html#a420d4837428729719338ca91ed375f3c">lock_</a>);</div> |
| <div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  is_running_ = <span class="keyword">true</span>;</div> |
| <div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  }</div> |
| <div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  status = exec_stmt_resp.status;</div> |
| <div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <a class="code" href="status_8h.html#a85f7d0e774e15eb35b74f53264305e16">RETURN_IF_ERROR</a>(status);</div> |
| <div class="line"><a name="l00066"></a><span class="lineno"> 66</span> </div> |
| <div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  TGetResultSetMetadataReq meta_req;</div> |
| <div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  meta_req.operationHandle = exec_stmt_resp.operationHandle;</div> |
| <div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <a class="code" href="status_8h.html#a85f7d0e774e15eb35b74f53264305e16">RETURN_IF_ERROR</a>(IsCancelled());</div> |
| <div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  parent_server_->GetResultSetMetadata(meta_resp_, meta_req);</div> |
| <div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  status = meta_resp_.status;</div> |
| <div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <a class="code" href="status_8h.html#a85f7d0e774e15eb35b74f53264305e16">RETURN_IF_ERROR</a>(status);</div> |
| <div class="line"><a name="l00073"></a><span class="lineno"> 73</span> </div> |
| <div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="comment">// Fetch all results.</span></div> |
| <div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  TFetchResultsReq fetch_req;</div> |
| <div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  fetch_req.operationHandle = exec_stmt_resp.operationHandle;</div> |
| <div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  fetch_req.maxRows = 1024;</div> |
| <div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keywordflow">do</span> {</div> |
| <div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <a class="code" href="status_8h.html#a85f7d0e774e15eb35b74f53264305e16">RETURN_IF_ERROR</a>(IsCancelled());</div> |
| <div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  parent_server_->FetchResults(fetch_resp_, fetch_req);</div> |
| <div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  status = fetch_resp_.status;</div> |
| <div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  } <span class="keywordflow">while</span> (status.<a class="code" href="classimpala_1_1Status.html#a95ba859e42fe93445b340533220836ac">ok</a>() && fetch_resp_.hasMoreRows);</div> |
| <div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <a class="code" href="status_8h.html#a85f7d0e774e15eb35b74f53264305e16">RETURN_IF_ERROR</a>(IsCancelled());</div> |
| <div class="line"><a name="l00084"></a><span class="lineno"> 84</span> </div> |
| <div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  TCloseOperationResp close_resp;</div> |
| <div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  TCloseOperationReq close_req;</div> |
| <div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  close_req.operationHandle = exec_stmt_resp.operationHandle;</div> |
| <div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  parent_server_->CloseOperation(close_resp, close_req);</div> |
| <div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  {</div> |
| <div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  lock_guard<mutex> l(<a class="code" href="namespaceimpala.html#a420d4837428729719338ca91ed375f3c">lock_</a>);</div> |
| <div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  is_running_ = <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  }</div> |
| <div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <a class="code" href="status_8h.html#a85f7d0e774e15eb35b74f53264305e16">RETURN_IF_ERROR</a>(IsCancelled());</div> |
| <div class="line"><a name="l00094"></a><span class="lineno"> 94</span> </div> |
| <div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="comment">// Don't overwrite error from fetch. A failed fetch unregisters the query and we want to</span></div> |
| <div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="comment">// preserve the original error status (e.g., CANCELLED).</span></div> |
| <div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keywordflow">if</span> (status.<a class="code" href="classimpala_1_1Status.html#a95ba859e42fe93445b340533220836ac">ok</a>()) status = close_resp.status;</div> |
| <div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="keywordflow">return</span> status;</div> |
| <div class="line"><a name="l00099"></a><span class="lineno"> 99</span> }</div> |
| <div class="line"><a name="l00100"></a><span class="lineno"> 100</span> </div> |
| <div class="line"><a name="l00101"></a><span class="lineno"> 101</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div> |
| <div class="line"><a name="l00102"></a><span class="lineno"><a class="line" href="namespaceimpala.html#a22e88fe443955b961c9685ad73244b5d"> 102</a></span> <span class="keywordtype">void</span> <a class="code" href="namespaceimpala.html#a22e88fe443955b961c9685ad73244b5d">SetQueryOption</a>(TImpalaQueryOptions::type opt, <span class="keyword">const</span> T& opt_val,</div> |
| <div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  TExecuteStatementReq* exec_stmt_req) {</div> |
| <div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  stringstream opt_val_ss;</div> |
| <div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  opt_val_ss << opt_val;</div> |
| <div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  map<int, const char*>::const_iterator it =</div> |
| <div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  _TImpalaQueryOptions_VALUES_TO_NAMES.find(opt);</div> |
| <div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keywordflow">if</span> (it == _TImpalaQueryOptions_VALUES_TO_NAMES.end()) <span class="keywordflow">return</span>;</div> |
| <div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  exec_stmt_req->confOverlay[it->second] = opt_val_ss.str();</div> |
| <div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  exec_stmt_req->__isset.confOverlay = <span class="keyword">true</span>;</div> |
| <div class="line"><a name="l00111"></a><span class="lineno"> 111</span> }</div> |
| <div class="line"><a name="l00112"></a><span class="lineno"> 112</span> </div> |
| <div class="line"><a name="l00113"></a><span class="lineno"><a class="line" href="child-query_8cc.html#a88975c08863b0592ff88027b12eec730"> 113</a></span> <span class="preprocessor">#define SET_QUERY_OPTION(NAME, ENUM)\</span></div> |
| <div class="line"><a name="l00114"></a><span class="lineno"> 114</span> <span class="preprocessor"> if (parent_options.__isset.NAME) {\</span></div> |
| <div class="line"><a name="l00115"></a><span class="lineno"> 115</span> <span class="preprocessor"> SetQueryOption(TImpalaQueryOptions::ENUM,\</span></div> |
| <div class="line"><a name="l00116"></a><span class="lineno"> 116</span> <span class="preprocessor"> parent_options.NAME, exec_stmt_req);\</span></div> |
| <div class="line"><a name="l00117"></a><span class="lineno"> 117</span> <span class="preprocessor"> }</span></div> |
| <div class="line"><a name="l00118"></a><span class="lineno"> 118</span> <span class="preprocessor"></span></div> |
| <div class="line"><a name="l00119"></a><span class="lineno"><a class="line" href="classimpala_1_1ChildQuery.html#ac57a5feee933d86825f35953fda8b9da"> 119</a></span> <span class="keywordtype">void</span> <a class="code" href="classimpala_1_1ChildQuery.html#ac57a5feee933d86825f35953fda8b9da">ChildQuery::SetQueryOptions</a>(<span class="keyword">const</span> TQueryOptions& parent_options,</div> |
| <div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  TExecuteStatementReq* exec_stmt_req) {</div> |
| <div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="comment">// If this DCHECK is hit then handle the missing query option below.</span></div> |
| <div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  DCHECK_EQ(_TImpalaQueryOptions_VALUES_TO_NAMES.size(),</div> |
| <div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  TImpalaQueryOptions::EXEC_SINGLE_NODE_ROWS_THRESHOLD + 1);</div> |
| <div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <a class="code" href="child-query_8cc.html#a88975c08863b0592ff88027b12eec730">SET_QUERY_OPTION</a>(abort_on_default_limit_exceeded, ABORT_ON_DEFAULT_LIMIT_EXCEEDED);</div> |
| <div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <a class="code" href="child-query_8cc.html#a88975c08863b0592ff88027b12eec730">SET_QUERY_OPTION</a>(abort_on_error, ABORT_ON_ERROR);</div> |
| <div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <a class="code" href="child-query_8cc.html#a88975c08863b0592ff88027b12eec730">SET_QUERY_OPTION</a>(allow_unsupported_formats, ALLOW_UNSUPPORTED_FORMATS);</div> |
| <div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <a class="code" href="child-query_8cc.html#a88975c08863b0592ff88027b12eec730">SET_QUERY_OPTION</a>(batch_size, <a class="code" href="buffered-tuple-stream-test_8cc.html#ac1d895cb4479f043958ccc5cb92d630f">BATCH_SIZE</a>);</div> |
| <div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="comment">// Ignore debug actions on child queries because they may cause deadlock.</span></div> |
| <div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <a class="code" href="child-query_8cc.html#a88975c08863b0592ff88027b12eec730">SET_QUERY_OPTION</a>(default_order_by_limit, DEFAULT_ORDER_BY_LIMIT);</div> |
| <div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <a class="code" href="child-query_8cc.html#a88975c08863b0592ff88027b12eec730">SET_QUERY_OPTION</a>(disable_cached_reads, DISABLE_CACHED_READS);</div> |
| <div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <a class="code" href="child-query_8cc.html#a88975c08863b0592ff88027b12eec730">SET_QUERY_OPTION</a>(disable_outermost_topn, DISABLE_OUTERMOST_TOPN);</div> |
| <div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <a class="code" href="child-query_8cc.html#a88975c08863b0592ff88027b12eec730">SET_QUERY_OPTION</a>(disable_codegen, DISABLE_CODEGEN);</div> |
| <div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <a class="code" href="child-query_8cc.html#a88975c08863b0592ff88027b12eec730">SET_QUERY_OPTION</a>(explain_level, EXPLAIN_LEVEL);</div> |
| <div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <a class="code" href="child-query_8cc.html#a88975c08863b0592ff88027b12eec730">SET_QUERY_OPTION</a>(hbase_cache_blocks, HBASE_CACHE_BLOCKS);</div> |
| <div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <a class="code" href="child-query_8cc.html#a88975c08863b0592ff88027b12eec730">SET_QUERY_OPTION</a>(hbase_caching, HBASE_CACHING);</div> |
| <div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <a class="code" href="child-query_8cc.html#a88975c08863b0592ff88027b12eec730">SET_QUERY_OPTION</a>(max_errors, MAX_ERRORS);</div> |
| <div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <a class="code" href="child-query_8cc.html#a88975c08863b0592ff88027b12eec730">SET_QUERY_OPTION</a>(max_io_buffers, MAX_IO_BUFFERS);</div> |
| <div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <a class="code" href="child-query_8cc.html#a88975c08863b0592ff88027b12eec730">SET_QUERY_OPTION</a>(max_scan_range_length, MAX_SCAN_RANGE_LENGTH);</div> |
| <div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <a class="code" href="child-query_8cc.html#a88975c08863b0592ff88027b12eec730">SET_QUERY_OPTION</a>(mem_limit, MEM_LIMIT);</div> |
| <div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <a class="code" href="child-query_8cc.html#a88975c08863b0592ff88027b12eec730">SET_QUERY_OPTION</a>(num_nodes, NUM_NODES);</div> |
| <div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <a class="code" href="child-query_8cc.html#a88975c08863b0592ff88027b12eec730">SET_QUERY_OPTION</a>(num_scanner_threads, NUM_SCANNER_THREADS);</div> |
| <div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <a class="code" href="child-query_8cc.html#a88975c08863b0592ff88027b12eec730">SET_QUERY_OPTION</a>(compression_codec, COMPRESSION_CODEC);</div> |
| <div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <a class="code" href="child-query_8cc.html#a88975c08863b0592ff88027b12eec730">SET_QUERY_OPTION</a>(parquet_file_size, PARQUET_FILE_SIZE);</div> |
| <div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <a class="code" href="child-query_8cc.html#a88975c08863b0592ff88027b12eec730">SET_QUERY_OPTION</a>(request_pool, REQUEST_POOL);</div> |
| <div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <a class="code" href="child-query_8cc.html#a88975c08863b0592ff88027b12eec730">SET_QUERY_OPTION</a>(reservation_request_timeout, RESERVATION_REQUEST_TIMEOUT);</div> |
| <div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <a class="code" href="child-query_8cc.html#a88975c08863b0592ff88027b12eec730">SET_QUERY_OPTION</a>(sync_ddl, SYNC_DDL);</div> |
| <div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <a class="code" href="child-query_8cc.html#a88975c08863b0592ff88027b12eec730">SET_QUERY_OPTION</a>(v_cpu_cores, V_CPU_CORES);</div> |
| <div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <a class="code" href="child-query_8cc.html#a88975c08863b0592ff88027b12eec730">SET_QUERY_OPTION</a>(rm_initial_mem, RM_INITIAL_MEM);</div> |
| <div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <a class="code" href="child-query_8cc.html#a88975c08863b0592ff88027b12eec730">SET_QUERY_OPTION</a>(query_timeout_s, QUERY_TIMEOUT_S);</div> |
| <div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <a class="code" href="child-query_8cc.html#a88975c08863b0592ff88027b12eec730">SET_QUERY_OPTION</a>(max_block_mgr_memory, MAX_BLOCK_MGR_MEMORY);</div> |
| <div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <a class="code" href="child-query_8cc.html#a88975c08863b0592ff88027b12eec730">SET_QUERY_OPTION</a>(appx_count_distinct, APPX_COUNT_DISTINCT);</div> |
| <div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <a class="code" href="child-query_8cc.html#a88975c08863b0592ff88027b12eec730">SET_QUERY_OPTION</a>(disable_unsafe_spills, DISABLE_UNSAFE_SPILLS);</div> |
| <div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <a class="code" href="child-query_8cc.html#a88975c08863b0592ff88027b12eec730">SET_QUERY_OPTION</a>(seq_compression_mode, SEQ_COMPRESSION_MODE);</div> |
| <div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <a class="code" href="child-query_8cc.html#a88975c08863b0592ff88027b12eec730">SET_QUERY_OPTION</a>(exec_single_node_rows_threshold,</div> |
| <div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  EXEC_SINGLE_NODE_ROWS_THRESHOLD);</div> |
| <div class="line"><a name="l00156"></a><span class="lineno"> 156</span> }</div> |
| <div class="line"><a name="l00157"></a><span class="lineno"> 157</span> </div> |
| <div class="line"><a name="l00158"></a><span class="lineno"><a class="line" href="classimpala_1_1ChildQuery.html#ae4319b30a652d4e4f0d86a9771a551a6"> 158</a></span> <span class="keywordtype">void</span> <a class="code" href="classimpala_1_1ChildQuery.html#ae4319b30a652d4e4f0d86a9771a551a6">ChildQuery::Cancel</a>() {</div> |
| <div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="comment">// Do not hold lock_ while calling into parent_server_ to avoid deadlock.</span></div> |
| <div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  {</div> |
| <div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  lock_guard<mutex> l(<a class="code" href="namespaceimpala.html#a420d4837428729719338ca91ed375f3c">lock_</a>);</div> |
| <div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  is_cancelled_ = <span class="keyword">true</span>;</div> |
| <div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="keywordflow">if</span> (!is_running_) <span class="keywordflow">return</span>;</div> |
| <div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  is_running_ = <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  }</div> |
| <div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <a class="code" href="logging_8h.html#a916e38366cee7c32fd5fae7e2ee5e4a9">VLOG_QUERY</a> << <span class="stringliteral">"Cancelling and closing child query with operation id: "</span></div> |
| <div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  << hs2_handle_.operationId.guid;</div> |
| <div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="comment">// Ignore return statuses because they are not actionable.</span></div> |
| <div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  TCancelOperationResp cancel_resp;</div> |
| <div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  TCancelOperationReq cancel_req;</div> |
| <div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  cancel_req.operationHandle = hs2_handle_;</div> |
| <div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  parent_server_->CancelOperation(cancel_resp, cancel_req);</div> |
| <div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  TCloseOperationResp close_resp;</div> |
| <div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  TCloseOperationReq close_req;</div> |
| <div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  close_req.operationHandle = hs2_handle_;</div> |
| <div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  parent_server_->CloseOperation(close_resp, close_req);</div> |
| <div class="line"><a name="l00177"></a><span class="lineno"> 177</span> }</div> |
| <div class="line"><a name="l00178"></a><span class="lineno"> 178</span> </div> |
| <div class="line"><a name="l00179"></a><span class="lineno"><a class="line" href="classimpala_1_1ChildQuery.html#afcce342aa0eb05c84f2be5b8557c6df5"> 179</a></span> <a class="code" href="classimpala_1_1Status.html">Status</a> <a class="code" href="classimpala_1_1ChildQuery.html#afcce342aa0eb05c84f2be5b8557c6df5">ChildQuery::IsCancelled</a>() {</div> |
| <div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  lock_guard<mutex> l(<a class="code" href="namespaceimpala.html#a420d4837428729719338ca91ed375f3c">lock_</a>);</div> |
| <div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="keywordflow">if</span> (!is_cancelled_) <span class="keywordflow">return</span> <a class="code" href="classimpala_1_1Status.html#a580565665ea944eb64f3f495b1bee1e0">Status::OK</a>;</div> |
| <div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="keywordflow">return</span> <a class="code" href="classimpala_1_1Status.html#a318b69bf42d4d23f7ae71a8006efb85b">Status::CANCELLED</a>;</div> |
| <div class="line"><a name="l00183"></a><span class="lineno"> 183</span> }</div> |
| <div class="line"><a name="l00184"></a><span class="lineno"> 184</span> </div> |
| <div class="line"><a name="l00185"></a><span class="lineno"> 185</span> }</div> |
| <div class="ttc" id="classimpala_1_1ChildQuery_html_ae4319b30a652d4e4f0d86a9771a551a6"><div class="ttname"><a href="classimpala_1_1ChildQuery.html#ae4319b30a652d4e4f0d86a9771a551a6">impala::ChildQuery::Cancel</a></div><div class="ttdeci">void Cancel()</div><div class="ttdef"><b>Definition:</b> <a href="child-query_8cc_source.html#l00158">child-query.cc:158</a></div></div> |
| <div class="ttc" id="status_8h_html_a85f7d0e774e15eb35b74f53264305e16"><div class="ttname"><a href="status_8h.html#a85f7d0e774e15eb35b74f53264305e16">RETURN_IF_ERROR</a></div><div class="ttdeci">#define RETURN_IF_ERROR(stmt)</div><div class="ttdoc">some generally useful macros </div><div class="ttdef"><b>Definition:</b> <a href="status_8h_source.html#l00242">status.h:242</a></div></div> |
| <div class="ttc" id="namespaceimpala_html_a420d4837428729719338ca91ed375f3c"><div class="ttname"><a href="namespaceimpala.html#a420d4837428729719338ca91ed375f3c">impala::lock_</a></div><div class="ttdeci">boost::mutex lock_</div><div class="ttdoc">protects all fields below </div><div class="ttdef"><b>Definition:</b> <a href="coordinator_8h_source.html#l00233">coordinator.h:233</a></div></div> |
| <div class="ttc" id="namespaceimpala_html_a19e01fc90bc956ac7e1a735d2bea5a5e"><div class="ttname"><a href="namespaceimpala.html#a19e01fc90bc956ac7e1a735d2bea5a5e">impala::PrintId</a></div><div class="ttdeci">string PrintId(const TUniqueId &id, const string &separator)</div><div class="ttdef"><b>Definition:</b> <a href="debug-util_8cc_source.html#l00097">debug-util.cc:97</a></div></div> |
| <div class="ttc" id="buffered-tuple-stream-test_8cc_html_ac1d895cb4479f043958ccc5cb92d630f"><div class="ttname"><a href="buffered-tuple-stream-test_8cc.html#ac1d895cb4479f043958ccc5cb92d630f">BATCH_SIZE</a></div><div class="ttdeci">const int BATCH_SIZE</div><div class="ttdef"><b>Definition:</b> <a href="buffered-tuple-stream-test_8cc_source.html#l00039">buffered-tuple-stream-test.cc:39</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="classimpala_1_1ChildQuery_html_ac57a5feee933d86825f35953fda8b9da"><div class="ttname"><a href="classimpala_1_1ChildQuery.html#ac57a5feee933d86825f35953fda8b9da">impala::ChildQuery::SetQueryOptions</a></div><div class="ttdeci">void SetQueryOptions(const TQueryOptions &parent_options, apache::hive::service::cli::thrift::TExecuteStatementReq *exec_stmt_req)</div><div class="ttdef"><b>Definition:</b> <a href="child-query_8cc_source.html#l00119">child-query.cc:119</a></div></div> |
| <div class="ttc" id="classimpala_1_1ImpalaServer_html_aba5efe9bc02d5a0cba55767fb7fb0d26"><div class="ttname"><a href="classimpala_1_1ImpalaServer.html#aba5efe9bc02d5a0cba55767fb7fb0d26">impala::ImpalaServer::TUniqueIdToTHandleIdentifier</a></div><div class="ttdeci">static void TUniqueIdToTHandleIdentifier(const TUniqueId &unique_id, const TUniqueId &secret, apache::hive::service::cli::thrift::THandleIdentifier *handle)</div><div class="ttdef"><b>Definition:</b> <a href="impala-server_8inline_8h_source.html#l00040">impala-server.inline.h:40</a></div></div> |
| <div class="ttc" id="logging_8h_html_a916e38366cee7c32fd5fae7e2ee5e4a9"><div class="ttname"><a href="logging_8h.html#a916e38366cee7c32fd5fae7e2ee5e4a9">VLOG_QUERY</a></div><div class="ttdeci">#define VLOG_QUERY</div><div class="ttdef"><b>Definition:</b> <a href="logging_8h_source.html#l00057">logging.h:57</a></div></div> |
| <div class="ttc" id="query-exec-state_8h_html"><div class="ttname"><a href="query-exec-state_8h.html">query-exec-state.h</a></div></div> |
| <div class="ttc" id="debug-util_8h_html"><div class="ttname"><a href="debug-util_8h.html">debug-util.h</a></div></div> |
| <div class="ttc" id="classimpala_1_1ChildQuery_html_a528d42ce334d1328fc597bbfe981a0b7"><div class="ttname"><a href="classimpala_1_1ChildQuery.html#a528d42ce334d1328fc597bbfe981a0b7">impala::ChildQuery::ExecAndFetch</a></div><div class="ttdeci">Status ExecAndFetch()</div><div class="ttdoc">Executes this child query through HiveServer2 and fetches all its results. </div><div class="ttdef"><b>Definition:</b> <a href="child-query_8cc_source.html#l00032">child-query.cc:32</a></div></div> |
| <div class="ttc" id="classimpala_1_1Status_html_a318b69bf42d4d23f7ae71a8006efb85b"><div class="ttname"><a href="classimpala_1_1Status.html#a318b69bf42d4d23f7ae71a8006efb85b">impala::Status::CANCELLED</a></div><div class="ttdeci">static const Status CANCELLED</div><div class="ttdef"><b>Definition:</b> <a href="status_8h_source.html#l00088">status.h:88</a></div></div> |
| <div class="ttc" id="child-query_8h_html"><div class="ttname"><a href="child-query_8h.html">child-query.h</a></div></div> |
| <div class="ttc" id="classimpala_1_1ChildQuery_html_afcce342aa0eb05c84f2be5b8557c6df5"><div class="ttname"><a href="classimpala_1_1ChildQuery.html#afcce342aa0eb05c84f2be5b8557c6df5">impala::ChildQuery::IsCancelled</a></div><div class="ttdeci">Status IsCancelled()</div><div class="ttdef"><b>Definition:</b> <a href="child-query_8cc_source.html#l00179">child-query.cc:179</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="child-query_8cc_html_a88975c08863b0592ff88027b12eec730"><div class="ttname"><a href="child-query_8cc.html#a88975c08863b0592ff88027b12eec730">SET_QUERY_OPTION</a></div><div class="ttdeci">#define SET_QUERY_OPTION(NAME, ENUM)</div><div class="ttdef"><b>Definition:</b> <a href="child-query_8cc_source.html#l00113">child-query.cc:113</a></div></div> |
| <div class="ttc" id="names_8h_html"><div class="ttname"><a href="names_8h.html">names.h</a></div></div> |
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