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<p><code>#include &lt;<a class="el" href="process-state-info_8h_source.html">process-state-info.h</a>&gt;</code></p>
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<tr class="memitem:a102365445836e3ae5ae8f50c5c2a6a61"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classimpala_1_1ProcessStateInfo.html#a102365445836e3ae5ae8f50c5c2a6a61">ProcessStateInfo</a> ()</td></tr>
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<tr class="memitem:a3b485b3bfc9db301584526cb7c327213"><td class="memItemLeft" align="right" valign="top">string&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classimpala_1_1ProcessStateInfo.html#a3b485b3bfc9db301584526cb7c327213">DebugString</a> () const </td></tr>
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<tr class="memitem:a422f93f5213544fb08cba0e84646a91b"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classimpala_1_1ProcessStateInfo.html#a422f93f5213544fb08cba0e84646a91b">GetInt</a> (const string &amp;state_key) const </td></tr>
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<tr class="memitem:a98b3f8e6e303de403ec828a90fdd8979"><td class="memItemLeft" align="right" valign="top">int64_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classimpala_1_1ProcessStateInfo.html#a98b3f8e6e303de403ec828a90fdd8979">GetInt64</a> (const string &amp;state_key) const </td></tr>
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<tr class="memitem:a40cfb24f24a58720640344ea51b5bda1"><td class="memItemLeft" align="right" valign="top">string&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classimpala_1_1ProcessStateInfo.html#a40cfb24f24a58720640344ea51b5bda1">GetString</a> (const string &amp;state_key) const </td></tr>
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<tr class="memitem:a3849ebede3f3aabccf769f111b9f49da"><td class="memItemLeft" align="right" valign="top">int64_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classimpala_1_1ProcessStateInfo.html#a3849ebede3f3aabccf769f111b9f49da">GetBytes</a> (const string &amp;state_key) const </td></tr>
<tr class="memdesc:a3849ebede3f3aabccf769f111b9f49da"><td class="mdescLeft">&#160;</td><td class="mdescRight">Original data's unit is B or KB. <a href="#a3849ebede3f3aabccf769f111b9f49da">More...</a><br/></td></tr>
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<tr class="memitem:af83f2d76c1f74d6d6ee785f742dbab6b"><td class="memItemLeft" align="right" valign="top">typedef map&lt; string, string &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classimpala_1_1ProcessStateInfo.html#af83f2d76c1f74d6d6ee785f742dbab6b">ProcessStateMap</a></td></tr>
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<tr class="memitem:a85df14da55615b6af6005367089cfa45"><td class="memItemLeft" align="right" valign="top">typedef map&lt; int, string &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classimpala_1_1ProcessStateInfo.html#a85df14da55615b6af6005367089cfa45">FileDescriptorMap</a></td></tr>
<tr class="memdesc:a85df14da55615b6af6005367089cfa45"><td class="mdescLeft">&#160;</td><td class="mdescRight">The description info for each file. <a href="#a85df14da55615b6af6005367089cfa45">More...</a><br/></td></tr>
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Private Member Functions</h2></td></tr>
<tr class="memitem:aa3b6c372b5235ffcd55f1f9576f58512"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classimpala_1_1ProcessStateInfo.html#aa3b6c372b5235ffcd55f1f9576f58512">ReadProcIO</a> ()</td></tr>
<tr class="memdesc:aa3b6c372b5235ffcd55f1f9576f58512"><td class="mdescLeft">&#160;</td><td class="mdescRight">Read I/O info from /proc/&lt;pid&gt;/io. <a href="#aa3b6c372b5235ffcd55f1f9576f58512">More...</a><br/></td></tr>
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<tr class="memitem:a4a97fab2fc2b8d522e7668a07f5e832d"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classimpala_1_1ProcessStateInfo.html#a4a97fab2fc2b8d522e7668a07f5e832d">ReadProcCgroup</a> ()</td></tr>
<tr class="memdesc:a4a97fab2fc2b8d522e7668a07f5e832d"><td class="mdescLeft">&#160;</td><td class="mdescRight">Read cgroup info from /proc/&lt;pid&gt;/cgroup. <a href="#a4a97fab2fc2b8d522e7668a07f5e832d">More...</a><br/></td></tr>
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<tr class="memitem:a88fe834018930e01d094111f983a21a0"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classimpala_1_1ProcessStateInfo.html#a88fe834018930e01d094111f983a21a0">ReadProcSched</a> ()</td></tr>
<tr class="memdesc:a88fe834018930e01d094111f983a21a0"><td class="mdescLeft">&#160;</td><td class="mdescRight">Read schedule info from /proc/&lt;pid&gt;/sched. <a href="#a88fe834018930e01d094111f983a21a0">More...</a><br/></td></tr>
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<tr class="memitem:a19c34ae2465225b0eb524427a7e7e17b"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classimpala_1_1ProcessStateInfo.html#a19c34ae2465225b0eb524427a7e7e17b">ReadProcStatus</a> ()</td></tr>
<tr class="memdesc:a19c34ae2465225b0eb524427a7e7e17b"><td class="mdescLeft">&#160;</td><td class="mdescRight">Read status from /proc/&lt;pid&gt;/status. <a href="#a19c34ae2465225b0eb524427a7e7e17b">More...</a><br/></td></tr>
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<tr class="memitem:a04540f4c6b5eeb9b91a5068b5e9c9e14"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classimpala_1_1ProcessStateInfo.html#a04540f4c6b5eeb9b91a5068b5e9c9e14">ReadProcFileDescriptorInfo</a> ()</td></tr>
<tr class="memdesc:a04540f4c6b5eeb9b91a5068b5e9c9e14"><td class="mdescLeft">&#160;</td><td class="mdescRight">Read file descriptors belong the process from /proc/&lt;pid&gt;/fd. <a href="#a04540f4c6b5eeb9b91a5068b5e9c9e14">More...</a><br/></td></tr>
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Private Attributes</h2></td></tr>
<tr class="memitem:a69d914663e1614a9a328b573e8e98b57"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classimpala_1_1ProcessStateInfo.html#af83f2d76c1f74d6d6ee785f742dbab6b">ProcessStateMap</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classimpala_1_1ProcessStateInfo.html#a69d914663e1614a9a328b573e8e98b57">process_state_map_</a></td></tr>
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<tr class="memitem:a60a3cc1b6eaa297038bbb865abdf6c05"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classimpala_1_1ProcessStateInfo.html#a85df14da55615b6af6005367089cfa45">FileDescriptorMap</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classimpala_1_1ProcessStateInfo.html#a60a3cc1b6eaa297038bbb865abdf6c05">fd_desc_</a></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p><a class="el" href="classimpala_1_1ProcessStateInfo.html">ProcessStateInfo</a> is an interface to query for process state information at runtime. This contains information about I/O, Cgroup, <a class="el" href="classimpala_1_1Scheduler.html">Scheduler</a>, Process status, as well as the file descriptors that belong to the process. Below are some of the I/O information will be read from /proc/pid/io. io/rchar[int64]: Number of bytes which this task has caused to be read from storage. io/wchar[int64]: Number of bytes which this task has caused to be written to storage. io/syscr[int64]: Number of read I/O operations. io/syscw[int64]: Number of write I/O operations. io/read_bytes[int64]: Number of bytes which this process fetched from storage. io/write_bytes[int64]: Number of bytes which this process wrote to storage. io/cancelled_write_bytes[int64]: Number of bytes which this process did not write, by truncating pagecache. Below are some of the Cgroup information that will be read from /proc/pid/cgroup. cgroup/hierarchy_id[int]: Hierarchy ID number. cgroup/subsystems[string]: Set of subsystems bound to the hierarchy. cgroup/control_group[string]: Control group in the hierarchy to which the process belongs. Below are some of the <a class="el" href="classimpala_1_1Scheduler.html">Scheduler</a> information that will be read from /proc/pid/sched. sched/se.sum_exec_runtime[string]: Sum of execute time. sched/se.statistics.wait_max[string]: Max wait time in ready queue. sched/se.statistics.wait_sum[string]: Sum of wait time in ready queue. sched/se.statistics.wait_count[int64]: Total of wait times. sched/se.statistics.iowait_sum[string]: Sum of wait time for I/O. sched/se.statistics.iowait_count[int64]: Total of wait times for I/O. sched/se.statistics.nr_wakeups_migrate[int64]: Number of wakeups with cpu migration. sched/nr_switches[int64]: Total number of context switches. sched/nr_voluntary_switches[int]: Number of voluntary context switches. sched/nr_involuntary_switches[int]: Number of involuntary context switches. sched/prio[int]: The process priority. Below are some of the Process status information that will be read from /proc/pid/status. status/Threads[int]: Number of threads in process. status/VmPeak[string]: Peak virtual memory size. status/VmSize[string]: Virtual memory size. status/VmLck[string]: Locked memory size. status/VmPin[string]: Pinned memory size. status/VmHWM[string]: Peak resident set size ("high water mark"). status/VmRSS[string]: Resident Set Size. status/VmData[string], status/VmStk[string], status/VmExe[string]: Size of data, stack, and text segments. status/VmLib[string]: Shared library code size. status/VmPTE[string]: Page table entries size (since Linux 2.6.10). status/VmSwap[string]: Swap memory size. status/Cpus_allowed_list[string]: List of CPUs on which this process may run. status/Mems_allowed_list[string]: Memory nodes allowed to this process. File Descriptors information will be read from /proc/pid/fd. The number of files the process has open. The description info for each file. </p>
<p>Definition at line <a class="el" href="process-state-info_8h_source.html#l00080">80</a> of file <a class="el" href="process-state-info_8h_source.html">process-state-info.h</a>.</p>
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<td class="memname">typedef map&lt;int, string&gt; <a class="el" href="classimpala_1_1ProcessStateInfo.html#a85df14da55615b6af6005367089cfa45">impala::ProcessStateInfo::FileDescriptorMap</a></td>
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<p>The description info for each file. </p>
<p>Definition at line <a class="el" href="process-state-info_8h_source.html#l00099">99</a> of file <a class="el" href="process-state-info_8h_source.html">process-state-info.h</a>.</p>
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<td class="memname">typedef map&lt;string, string&gt; <a class="el" href="classimpala_1_1ProcessStateInfo.html#af83f2d76c1f74d6d6ee785f742dbab6b">impala::ProcessStateInfo::ProcessStateMap</a></td>
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<p>Definition at line <a class="el" href="process-state-info_8h_source.html#l00095">95</a> of file <a class="el" href="process-state-info_8h_source.html">process-state-info.h</a>.</p>
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<p>Read the current process state info when constructed. There is no need to be thread safe. </p>
<p>Definition at line <a class="el" href="process-state-info_8cc_source.html#l00171">171</a> of file <a class="el" href="process-state-info_8cc_source.html">process-state-info.cc</a>.</p>
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<p>Definition at line <a class="el" href="process-state-info_8cc_source.html#l00179">179</a> of file <a class="el" href="process-state-info_8cc_source.html">process-state-info.cc</a>.</p>
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<td class="memname">int64_t impala::ProcessStateInfo::GetBytes </td>
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<p>Original data's unit is B or KB. </p>
<p>Definition at line <a class="el" href="process-state-info_8cc_source.html#l00065">65</a> of file <a class="el" href="process-state-info_8cc_source.html">process-state-info.cc</a>.</p>
<p>Referenced by <a class="el" href="proc-info-test_8cc_source.html#l00039">impala::TEST()</a>.</p>
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<td class="memname">int impala::ProcessStateInfo::GetInt </td>
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<td class="paramtype">const string &amp;&#160;</td>
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<td> const</td>
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<p>Definition at line <a class="el" href="process-state-info_8cc_source.html#l00042">42</a> of file <a class="el" href="process-state-info_8cc_source.html">process-state-info.cc</a>.</p>
<p>Referenced by <a class="el" href="proc-info-test_8cc_source.html#l00039">impala::TEST()</a>.</p>
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<td class="memname">int64_t impala::ProcessStateInfo::GetInt64 </td>
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<p>Definition at line <a class="el" href="process-state-info_8cc_source.html#l00048">48</a> of file <a class="el" href="process-state-info_8cc_source.html">process-state-info.cc</a>.</p>
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<td class="memname">string impala::ProcessStateInfo::GetString </td>
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<p>Definition at line <a class="el" href="process-state-info_8cc_source.html#l00059">59</a> of file <a class="el" href="process-state-info_8cc_source.html">process-state-info.cc</a>.</p>
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<td class="memname">void impala::ProcessStateInfo::ReadProcCgroup </td>
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<p>Read cgroup info from /proc/&lt;pid&gt;/cgroup. </p>
<p>Definition at line <a class="el" href="process-state-info_8cc_source.html#l00098">98</a> of file <a class="el" href="process-state-info_8cc_source.html">process-state-info.cc</a>.</p>
<p>References <a class="el" href="sasl-test_8cc.html#a2db66f7b463c0e190f8933e51f43d91e">path()</a>.</p>
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<td class="memname">void impala::ProcessStateInfo::ReadProcFileDescriptorInfo </td>
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<p>Read file descriptors belong the process from /proc/&lt;pid&gt;/fd. </p>
<p>Definition at line <a class="el" href="process-state-info_8cc_source.html#l00150">150</a> of file <a class="el" href="process-state-info_8cc_source.html">process-state-info.cc</a>.</p>
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<td class="memname">void impala::ProcessStateInfo::ReadProcIO </td>
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<p>Read I/O info from /proc/&lt;pid&gt;/io. </p>
<p>Definition at line <a class="el" href="process-state-info_8cc_source.html#l00082">82</a> of file <a class="el" href="process-state-info_8cc_source.html">process-state-info.cc</a>.</p>
<p>References <a class="el" href="sasl-test_8cc.html#a2db66f7b463c0e190f8933e51f43d91e">path()</a>.</p>
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<td class="memname">void impala::ProcessStateInfo::ReadProcSched </td>
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<p>Read schedule info from /proc/&lt;pid&gt;/sched. </p>
<p>Definition at line <a class="el" href="process-state-info_8cc_source.html#l00116">116</a> of file <a class="el" href="process-state-info_8cc_source.html">process-state-info.cc</a>.</p>
<p>References <a class="el" href="sasl-test_8cc.html#a2db66f7b463c0e190f8933e51f43d91e">path()</a>.</p>
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<td class="memname">void impala::ProcessStateInfo::ReadProcStatus </td>
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<p>Read status from /proc/&lt;pid&gt;/status. </p>
<p>Definition at line <a class="el" href="process-state-info_8cc_source.html#l00133">133</a> of file <a class="el" href="process-state-info_8cc_source.html">process-state-info.cc</a>.</p>
<p>References <a class="el" href="sasl-test_8cc.html#a2db66f7b463c0e190f8933e51f43d91e">path()</a>.</p>
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<h2 class="groupheader">Member Data Documentation</h2>
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<td class="memname"><a class="el" href="classimpala_1_1ProcessStateInfo.html#a85df14da55615b6af6005367089cfa45">FileDescriptorMap</a> impala::ProcessStateInfo::fd_desc_</td>
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<p>Definition at line <a class="el" href="process-state-info_8h_source.html#l00100">100</a> of file <a class="el" href="process-state-info_8h_source.html">process-state-info.h</a>.</p>
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<td class="memname"><a class="el" href="classimpala_1_1ProcessStateInfo.html#af83f2d76c1f74d6d6ee785f742dbab6b">ProcessStateMap</a> impala::ProcessStateInfo::process_state_map_</td>
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<p>Definition at line <a class="el" href="process-state-info_8h_source.html#l00096">96</a> of file <a class="el" href="process-state-info_8h_source.html">process-state-info.h</a>.</p>
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<hr/>The documentation for this class was generated from the following files:<ul>
<li>be/src/util/<a class="el" href="process-state-info_8h_source.html">process-state-info.h</a></li>
<li>be/src/util/<a class="el" href="process-state-info_8cc_source.html">process-state-info.cc</a></li>
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