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| <p><code>#include <<a class="el" href="failure-detector_8h_source.html">failure-detector.h</a>></code></p> |
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| Inheritance diagram for impala::TimeoutFailureDetector:</div> |
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| Public Types</h2></td></tr> |
| <tr class="memitem:ab1f72b41f370a931fd4e44dd90fdf7e1"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="classimpala_1_1FailureDetector.html#ab1f72b41f370a931fd4e44dd90fdf7e1">PeerState</a> { <a class="el" href="classimpala_1_1FailureDetector.html#ab1f72b41f370a931fd4e44dd90fdf7e1a7c97d056ffa22a9374fe409d077d435b">FAILED</a> = 0, |
| <a class="el" href="classimpala_1_1FailureDetector.html#ab1f72b41f370a931fd4e44dd90fdf7e1a1a216dc7ef5758aa03241a1d4ec5b6a8">SUSPECTED</a> = 1, |
| <a class="el" href="classimpala_1_1FailureDetector.html#ab1f72b41f370a931fd4e44dd90fdf7e1ad2e75929255cff0cb9e588675644e38e">OK</a> = 2, |
| <a class="el" href="classimpala_1_1FailureDetector.html#ab1f72b41f370a931fd4e44dd90fdf7e1a42ed1b1f2aef3d9215182c95e3b1b857">UNKNOWN</a> = 3 |
| }</td></tr> |
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| </table><table class="memberdecls"> |
| <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a> |
| Public Member Functions</h2></td></tr> |
| <tr class="memitem:a4c6a639366a5ad8a681908f732154595"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classimpala_1_1TimeoutFailureDetector.html#a4c6a639366a5ad8a681908f732154595">TimeoutFailureDetector</a> (boost::posix_time::time_duration failure_timeout, boost::posix_time::time_duration suspect_timeout)</td></tr> |
| <tr class="separator:a4c6a639366a5ad8a681908f732154595"><td class="memSeparator" colspan="2"> </td></tr> |
| <tr class="memitem:a20a3145baaea21cfec9e6e0950949240"><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="classimpala_1_1FailureDetector.html#ab1f72b41f370a931fd4e44dd90fdf7e1">PeerState</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classimpala_1_1TimeoutFailureDetector.html#a20a3145baaea21cfec9e6e0950949240">UpdateHeartbeat</a> (const std::string &peer, <a class="el" href="classbool.html">bool</a> seen)</td></tr> |
| <tr class="separator:a20a3145baaea21cfec9e6e0950949240"><td class="memSeparator" colspan="2"> </td></tr> |
| <tr class="memitem:aced77644d17009255e22878461228893"><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="classimpala_1_1FailureDetector.html#ab1f72b41f370a931fd4e44dd90fdf7e1">PeerState</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classimpala_1_1TimeoutFailureDetector.html#aced77644d17009255e22878461228893">GetPeerState</a> (const std::string &peer)</td></tr> |
| <tr class="memdesc:aced77644d17009255e22878461228893"><td class="mdescLeft"> </td><td class="mdescRight">Returns the current estimated state of a peer. <a href="#aced77644d17009255e22878461228893">More...</a><br/></td></tr> |
| <tr class="separator:aced77644d17009255e22878461228893"><td class="memSeparator" colspan="2"> </td></tr> |
| <tr class="memitem:afb4d4ebce26636dcc847864b44c0f83d"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classimpala_1_1TimeoutFailureDetector.html#afb4d4ebce26636dcc847864b44c0f83d">EvictPeer</a> (const std::string &peer)</td></tr> |
| <tr class="memdesc:afb4d4ebce26636dcc847864b44c0f83d"><td class="mdescLeft"> </td><td class="mdescRight">Remove a peer from the failure detector completely. <a href="#afb4d4ebce26636dcc847864b44c0f83d">More...</a><br/></td></tr> |
| <tr class="separator:afb4d4ebce26636dcc847864b44c0f83d"><td class="memSeparator" colspan="2"> </td></tr> |
| </table><table class="memberdecls"> |
| <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-static-methods"></a> |
| Static Public Member Functions</h2></td></tr> |
| <tr class="memitem:a9c6ec8c9cedf130a40ae7b7c015a9932"><td class="memItemLeft" align="right" valign="top">static const std::string & </td><td class="memItemRight" valign="bottom"><a class="el" href="classimpala_1_1FailureDetector.html#a9c6ec8c9cedf130a40ae7b7c015a9932">PeerStateToString</a> (<a class="el" href="classimpala_1_1FailureDetector.html#ab1f72b41f370a931fd4e44dd90fdf7e1">PeerState</a> peer_state)</td></tr> |
| <tr class="memdesc:a9c6ec8c9cedf130a40ae7b7c015a9932"><td class="mdescLeft"> </td><td class="mdescRight">Utility method to convert a PeerState enum to a string. <a href="#a9c6ec8c9cedf130a40ae7b7c015a9932">More...</a><br/></td></tr> |
| <tr class="separator:a9c6ec8c9cedf130a40ae7b7c015a9932"><td class="memSeparator" colspan="2"> </td></tr> |
| </table><table class="memberdecls"> |
| <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pri-attribs"></a> |
| Private Attributes</h2></td></tr> |
| <tr class="memitem:aa818117dcbb983ad3cd00c0943cf69a9"><td class="memItemLeft" align="right" valign="top">boost::mutex </td><td class="memItemRight" valign="bottom"><a class="el" href="classimpala_1_1TimeoutFailureDetector.html#aa818117dcbb983ad3cd00c0943cf69a9">lock_</a></td></tr> |
| <tr class="memdesc:aa818117dcbb983ad3cd00c0943cf69a9"><td class="mdescLeft"> </td><td class="mdescRight">Protects all members. <a href="#aa818117dcbb983ad3cd00c0943cf69a9">More...</a><br/></td></tr> |
| <tr class="separator:aa818117dcbb983ad3cd00c0943cf69a9"><td class="memSeparator" colspan="2"> </td></tr> |
| <tr class="memitem:ae7e04a1e5a7dd64e7ac39a6bbde97cc3"><td class="memItemLeft" align="right" valign="top">std::map< std::string, <br class="typebreak"/> |
| boost::system_time > </td><td class="memItemRight" valign="bottom"><a class="el" href="classimpala_1_1TimeoutFailureDetector.html#ae7e04a1e5a7dd64e7ac39a6bbde97cc3">peer_heartbeat_record_</a></td></tr> |
| <tr class="memdesc:ae7e04a1e5a7dd64e7ac39a6bbde97cc3"><td class="mdescLeft"> </td><td class="mdescRight">Record of last time a successful heartbeat was received. <a href="#ae7e04a1e5a7dd64e7ac39a6bbde97cc3">More...</a><br/></td></tr> |
| <tr class="separator:ae7e04a1e5a7dd64e7ac39a6bbde97cc3"><td class="memSeparator" colspan="2"> </td></tr> |
| <tr class="memitem:adf704c05cda08c1b47e432deff130077"><td class="memItemLeft" align="right" valign="top">const <br class="typebreak"/> |
| boost::posix_time::time_duration </td><td class="memItemRight" valign="bottom"><a class="el" href="classimpala_1_1TimeoutFailureDetector.html#adf704c05cda08c1b47e432deff130077">failure_timeout_</a></td></tr> |
| <tr class="separator:adf704c05cda08c1b47e432deff130077"><td class="memSeparator" colspan="2"> </td></tr> |
| <tr class="memitem:a29c5f7d2ae7ed691f7ddc088ade5ad5e"><td class="memItemLeft" align="right" valign="top">const <br class="typebreak"/> |
| boost::posix_time::time_duration </td><td class="memItemRight" valign="bottom"><a class="el" href="classimpala_1_1TimeoutFailureDetector.html#a29c5f7d2ae7ed691f7ddc088ade5ad5e">suspect_timeout_</a></td></tr> |
| <tr class="separator:a29c5f7d2ae7ed691f7ddc088ade5ad5e"><td class="memSeparator" colspan="2"> </td></tr> |
| </table> |
| <a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2> |
| <div class="textblock"><p>A failure detector based on a maximum time between successful heartbeats. Peers that do not successfully heartbeat before the failure_timeout are considered failed; those that do not heartbeat before the suspect_timeout are considered suspected. A timeout failure detector is most appropriate for a client which is receiving periodic heartbeats. Not thread safe. </p> |
| |
| <p>Definition at line <a class="el" href="failure-detector_8h_source.html#l00072">72</a> of file <a class="el" href="failure-detector_8h_source.html">failure-detector.h</a>.</p> |
| </div><h2 class="groupheader">Member Enumeration Documentation</h2> |
| <a class="anchor" id="ab1f72b41f370a931fd4e44dd90fdf7e1"></a> |
| <div class="memitem"> |
| <div class="memproto"> |
| <table class="mlabels"> |
| <tr> |
| <td class="mlabels-left"> |
| <table class="memname"> |
| <tr> |
| <td class="memname">enum <a class="el" href="classimpala_1_1FailureDetector.html#ab1f72b41f370a931fd4e44dd90fdf7e1">impala::FailureDetector::PeerState</a></td> |
| </tr> |
| </table> |
| </td> |
| <td class="mlabels-right"> |
| <span class="mlabels"><span class="mlabel">inherited</span></span> </td> |
| </tr> |
| </table> |
| </div><div class="memdoc"> |
| <table class="fieldtable"> |
| <tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><em><a class="anchor" id="ab1f72b41f370a931fd4e44dd90fdf7e1a7c97d056ffa22a9374fe409d077d435b"></a>FAILED</em> </td><td class="fielddoc"> |
| </td></tr> |
| <tr><td class="fieldname"><em><a class="anchor" id="ab1f72b41f370a931fd4e44dd90fdf7e1a1a216dc7ef5758aa03241a1d4ec5b6a8"></a>SUSPECTED</em> </td><td class="fielddoc"> |
| </td></tr> |
| <tr><td class="fieldname"><em><a class="anchor" id="ab1f72b41f370a931fd4e44dd90fdf7e1ad2e75929255cff0cb9e588675644e38e"></a>OK</em> </td><td class="fielddoc"> |
| </td></tr> |
| <tr><td class="fieldname"><em><a class="anchor" id="ab1f72b41f370a931fd4e44dd90fdf7e1a42ed1b1f2aef3d9215182c95e3b1b857"></a>UNKNOWN</em> </td><td class="fielddoc"> |
| </td></tr> |
| </table> |
| |
| <p>Definition at line <a class="el" href="failure-detector_8h_source.html#l00035">35</a> of file <a class="el" href="failure-detector_8h_source.html">failure-detector.h</a>.</p> |
| |
| </div> |
| </div> |
| <h2 class="groupheader">Constructor & Destructor Documentation</h2> |
| <a class="anchor" id="a4c6a639366a5ad8a681908f732154595"></a> |
| <div class="memitem"> |
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| <td class="mlabels-left"> |
| <table class="memname"> |
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| <td class="memname">impala::TimeoutFailureDetector::TimeoutFailureDetector </td> |
| <td>(</td> |
| <td class="paramtype">boost::posix_time::time_duration </td> |
| <td class="paramname"><em>failure_timeout</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">boost::posix_time::time_duration </td> |
| <td class="paramname"><em>suspect_timeout</em> </td> |
| </tr> |
| <tr> |
| <td></td> |
| <td>)</td> |
| <td></td><td></td> |
| </tr> |
| </table> |
| </td> |
| <td class="mlabels-right"> |
| <span class="mlabels"><span class="mlabel">inline</span></span> </td> |
| </tr> |
| </table> |
| </div><div class="memdoc"> |
| |
| <p>Definition at line <a class="el" href="failure-detector_8h_source.html#l00074">74</a> of file <a class="el" href="failure-detector_8h_source.html">failure-detector.h</a>.</p> |
| |
| </div> |
| </div> |
| <h2 class="groupheader">Member Function Documentation</h2> |
| <a class="anchor" id="afb4d4ebce26636dcc847864b44c0f83d"></a> |
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| <td class="memname">void TimeoutFailureDetector::EvictPeer </td> |
| <td>(</td> |
| <td class="paramtype">const std::string & </td> |
| <td class="paramname"><em>peer</em></td><td>)</td> |
| <td></td> |
| </tr> |
| </table> |
| </td> |
| <td class="mlabels-right"> |
| <span class="mlabels"><span class="mlabel">virtual</span></span> </td> |
| </tr> |
| </table> |
| </div><div class="memdoc"> |
| |
| <p>Remove a peer from the failure detector completely. </p> |
| |
| <p>Implements <a class="el" href="classimpala_1_1FailureDetector.html#a37bcda3301c14436bf8566a8e6762f26">impala::FailureDetector</a>.</p> |
| |
| <p>Definition at line <a class="el" href="failure-detector_8cc_source.html#l00067">67</a> of file <a class="el" href="failure-detector_8cc_source.html">failure-detector.cc</a>.</p> |
| |
| <p>References <a class="el" href="failure-detector_8h_source.html#l00087">lock_</a>, and <a class="el" href="failure-detector_8h_source.html#l00090">peer_heartbeat_record_</a>.</p> |
| |
| </div> |
| </div> |
| <a class="anchor" id="aced77644d17009255e22878461228893"></a> |
| <div class="memitem"> |
| <div class="memproto"> |
| <table class="mlabels"> |
| <tr> |
| <td class="mlabels-left"> |
| <table class="memname"> |
| <tr> |
| <td class="memname"><a class="el" href="classimpala_1_1FailureDetector.html#ab1f72b41f370a931fd4e44dd90fdf7e1">FailureDetector::PeerState</a> TimeoutFailureDetector::GetPeerState </td> |
| <td>(</td> |
| <td class="paramtype">const std::string & </td> |
| <td class="paramname"><em>peer</em></td><td>)</td> |
| <td></td> |
| </tr> |
| </table> |
| </td> |
| <td class="mlabels-right"> |
| <span class="mlabels"><span class="mlabel">virtual</span></span> </td> |
| </tr> |
| </table> |
| </div><div class="memdoc"> |
| |
| <p>Returns the current estimated state of a peer. </p> |
| |
| <p>Implements <a class="el" href="classimpala_1_1FailureDetector.html#a1e811ab736d87833039b4f529f337d9e">impala::FailureDetector</a>.</p> |
| |
| <p>Definition at line <a class="el" href="failure-detector_8cc_source.html#l00052">52</a> of file <a class="el" href="failure-detector_8cc_source.html">failure-detector.cc</a>.</p> |
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| <p>References <a class="el" href="failure-detector_8h_source.html#l00036">impala::FailureDetector::FAILED</a>, <a class="el" href="failure-detector_8h_source.html#l00094">failure_timeout_</a>, <a class="el" href="failure-detector_8h_source.html#l00087">lock_</a>, <a class="el" href="failure-detector_8h_source.html#l00038">impala::FailureDetector::OK</a>, <a class="el" href="failure-detector_8h_source.html#l00090">peer_heartbeat_record_</a>, <a class="el" href="failure-detector_8h_source.html#l00098">suspect_timeout_</a>, <a class="el" href="failure-detector_8h_source.html#l00037">impala::FailureDetector::SUSPECTED</a>, and <a class="el" href="failure-detector_8h_source.html#l00039">impala::FailureDetector::UNKNOWN</a>.</p> |
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| <p>Referenced by <a class="el" href="failure-detector_8cc_source.html#l00043">UpdateHeartbeat()</a>.</p> |
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| <td class="memname">const string & FailureDetector::PeerStateToString </td> |
| <td>(</td> |
| <td class="paramtype"><a class="el" href="classimpala_1_1FailureDetector.html#ab1f72b41f370a931fd4e44dd90fdf7e1">FailureDetector::PeerState</a> </td> |
| <td class="paramname"><em>peer_state</em></td><td>)</td> |
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| <td class="mlabels-right"> |
| <span class="mlabels"><span class="mlabel">static</span><span class="mlabel">inherited</span></span> </td> |
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| <p>Utility method to convert a PeerState enum to a string. </p> |
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| <p>Definition at line <a class="el" href="failure-detector_8cc_source.html#l00036">36</a> of file <a class="el" href="failure-detector_8cc_source.html">failure-detector.cc</a>.</p> |
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| <p>References <a class="el" href="failure-detector_8cc_source.html#l00029">PEER_STATE_TO_STRING</a>.</p> |
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| <td class="memname"><a class="el" href="classimpala_1_1FailureDetector.html#ab1f72b41f370a931fd4e44dd90fdf7e1">FailureDetector::PeerState</a> TimeoutFailureDetector::UpdateHeartbeat </td> |
| <td>(</td> |
| <td class="paramtype">const std::string & </td> |
| <td class="paramname"><em>peer</em>, </td> |
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| <td></td> |
| <td class="paramtype"><a class="el" href="classbool.html">bool</a> </td> |
| <td class="paramname"><em>seen</em> </td> |
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| <td></td> |
| <td>)</td> |
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| <span class="mlabels"><span class="mlabel">virtual</span></span> </td> |
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| <p>Updates the state of a peer according to the most recent heartbeat state. If 'seen' is true, this method indicates that a heartbeat has been received. If seen is 'false', this method indicates that a heartbeat has not been received since the last successful heartbeat receipt. This method returns the current state of the updated peer. Note that this may be different from the state implied by seen - a single missed heartbeat, for example, may not cause a peer to enter the SUSPECTED or FAILED states. The failure detector has the benefit of looking at all samples, rather than just the most recent one. </p> |
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| <p>Implements <a class="el" href="classimpala_1_1FailureDetector.html#a1e70f511bd9f428803494eef86e43020">impala::FailureDetector</a>.</p> |
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| <p>Definition at line <a class="el" href="failure-detector_8cc_source.html#l00043">43</a> of file <a class="el" href="failure-detector_8cc_source.html">failure-detector.cc</a>.</p> |
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| <p>References <a class="el" href="failure-detector_8cc_source.html#l00052">GetPeerState()</a>, <a class="el" href="failure-detector_8h_source.html#l00087">lock_</a>, and <a class="el" href="failure-detector_8h_source.html#l00090">peer_heartbeat_record_</a>.</p> |
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| <h2 class="groupheader">Member Data Documentation</h2> |
| <a class="anchor" id="adf704c05cda08c1b47e432deff130077"></a> |
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| <td class="memname">const boost::posix_time::time_duration impala::TimeoutFailureDetector::failure_timeout_</td> |
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| <td class="mlabels-right"> |
| <span class="mlabels"><span class="mlabel">private</span></span> </td> |
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| <p>The maximum time that may elapse without a heartbeat before a peer is considered failed </p> |
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| <p>Definition at line <a class="el" href="failure-detector_8h_source.html#l00094">94</a> of file <a class="el" href="failure-detector_8h_source.html">failure-detector.h</a>.</p> |
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| <p>Referenced by <a class="el" href="failure-detector_8cc_source.html#l00052">GetPeerState()</a>.</p> |
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| </div> |
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| <td class="memname">boost::mutex impala::TimeoutFailureDetector::lock_</td> |
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| <span class="mlabels"><span class="mlabel">private</span></span> </td> |
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| <p>Protects all members. </p> |
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| <p>Definition at line <a class="el" href="failure-detector_8h_source.html#l00087">87</a> of file <a class="el" href="failure-detector_8h_source.html">failure-detector.h</a>.</p> |
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| <p>Referenced by <a class="el" href="failure-detector_8cc_source.html#l00067">EvictPeer()</a>, <a class="el" href="failure-detector_8cc_source.html#l00052">GetPeerState()</a>, and <a class="el" href="failure-detector_8cc_source.html#l00043">UpdateHeartbeat()</a>.</p> |
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| </div> |
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| <a class="anchor" id="ae7e04a1e5a7dd64e7ac39a6bbde97cc3"></a> |
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| <td class="memname">std::map<std::string, boost::system_time> impala::TimeoutFailureDetector::peer_heartbeat_record_</td> |
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| <span class="mlabels"><span class="mlabel">private</span></span> </td> |
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| <p>Record of last time a successful heartbeat was received. </p> |
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| <p>Definition at line <a class="el" href="failure-detector_8h_source.html#l00090">90</a> of file <a class="el" href="failure-detector_8h_source.html">failure-detector.h</a>.</p> |
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| <p>Referenced by <a class="el" href="failure-detector_8cc_source.html#l00067">EvictPeer()</a>, <a class="el" href="failure-detector_8cc_source.html#l00052">GetPeerState()</a>, and <a class="el" href="failure-detector_8cc_source.html#l00043">UpdateHeartbeat()</a>.</p> |
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| <td class="memname">const boost::posix_time::time_duration impala::TimeoutFailureDetector::suspect_timeout_</td> |
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| <p>The maximum time that may elapse without a heartbeat before a peer is suspected of failure </p> |
| |
| <p>Definition at line <a class="el" href="failure-detector_8h_source.html#l00098">98</a> of file <a class="el" href="failure-detector_8h_source.html">failure-detector.h</a>.</p> |
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| <p>Referenced by <a class="el" href="failure-detector_8cc_source.html#l00052">GetPeerState()</a>.</p> |
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| </div> |
| </div> |
| <hr/>The documentation for this class was generated from the following files:<ul> |
| <li>be/src/statestore/<a class="el" href="failure-detector_8h_source.html">failure-detector.h</a></li> |
| <li>be/src/statestore/<a class="el" href="failure-detector_8cc_source.html">failure-detector.cc</a></li> |
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