<div dir="ltr">Hi, <div><br></div><div>I create two gen_server. Let's say X gen_server, and Y gen_server.</div><div><br></div><div>X gen_server do monitoring using erlang:monitor/2 to Y gen_server.</div><div>When i do Y:stop(). X gen_server also died. </div><div><br></div><div>I want to <b>X gen_server still alive</b> even monitored Y gen_server is died. </div><div><br></div><div>This is X gen_server <a href="https://pastebin.com/G2xDNxMf">https://pastebin.com/G2xDNxMf</a><br>This is Y gen_server <a href="https://pastebin.com/hWUfUPmn">https://pastebin.com/hWUfUPmn</a></div><div><br></div><div>This is the result when i run my code </div><div><br></div><div>





<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:12px;line-height:normal;color:rgb(0,0,0)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><font face="courier new, monospace">1> oka_oprek_agensrv:start_link().</font></span></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:12px;line-height:normal;color:rgb(0,0,0)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><font face="courier new, monospace">{ok,<0.86.0>}</font></span></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:12px;line-height:normal;color:rgb(0,0,0)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><font face="courier new, monospace">2> oka_oprek_agensrv:start_bgensrv().</font></span></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:12px;line-height:normal;color:rgb(0,0,0)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><font face="courier new, monospace">{ok,start_bgensrv,</font></span></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:12px;line-height:normal;color:rgb(0,0,0)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><font face="courier new, monospace"><span class="gmail-Apple-converted-space">    </span>{<0.84.0>,#Ref<0.1555235413.310640643.180158>}}</font></span></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:12px;line-height:normal;color:rgb(0,0,0)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><font face="courier new, monospace">3> oka_oprek_agensrv:hello().</font></span></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:12px;line-height:normal;color:rgb(0,0,0)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><font face="courier new, monospace">{ok,hello,{<0.84.0>,#Ref<0.1555235413.310640643.180166>}}</font></span></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:12px;line-height:normal;color:rgb(0,0,0)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><font face="courier new, monospace">4> oka_oprek_bgensrv:hello().</font></span></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:12px;line-height:normal;color:rgb(0,0,0)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><font face="courier new, monospace">{ok,hello_from_b,</font></span></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:12px;line-height:normal;color:rgb(0,0,0)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><font face="courier new, monospace"><span class="gmail-Apple-converted-space">    </span>{<0.84.0>,#Ref<0.1555235413.310640643.180173>}}</font></span></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:12px;line-height:normal;color:rgb(0,0,0)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><font face="courier new, monospace">5> oka_oprek_bgensrv:stop().</font></span></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:12px;line-height:normal;color:rgb(0,0,0)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><font face="courier new, monospace">Monitored process died. Ref=#Ref<0.1555235413.310640643.180161>, Pid=<0.88.0></font></span></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:12px;line-height:normal;color:rgb(0,0,0)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><font face="courier new, monospace">** exception exit: {normal,{gen_server,call,[bgensrv,stop]}}</font></span></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:12px;line-height:normal;color:rgb(0,0,0)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><font face="courier new, monospace"><span class="gmail-Apple-converted-space">     </span>in function<span class="gmail-Apple-converted-space">  </span>gen_server:call/2 (gen_server.erl, line 215)</font></span></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:12px;line-height:normal;color:rgb(0,0,0)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><font face="courier new, monospace">6> oka_oprek_agensrv:hello().</font></span></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:12px;line-height:normal;color:rgb(0,0,0)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><font face="courier new, monospace">** exception exit: {noproc,{gen_server,call,[agensrv,hello]}}</font></span></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:12px;line-height:normal;color:rgb(0,0,0)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><font face="courier new, monospace"><span class="gmail-Apple-converted-space">     </span>in function<span class="gmail-Apple-converted-space">  </span>gen_server:call/2 (gen_server.erl, line 215)</font></span></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:12px;line-height:normal;color:rgb(0,0,0)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><font face="courier new, monospace">7><span class="gmail-Apple-converted-space" style=""> </span></font></span></p><p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:12px;line-height:normal;font-family:Menlo;color:rgb(0,0,0)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><span class="gmail-Apple-converted-space"><br></span></span></p><p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:12px;line-height:normal;color:rgb(0,0,0)"><font face="arial, sans-serif">Please enlightenment </font></p><p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:12px;line-height:normal;color:rgb(0,0,0)"><font face="arial, sans-serif"><br></font></p><p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:12px;line-height:normal;color:rgb(0,0,0)"><font face="arial, sans-serif"><br></font></p><p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:12px;line-height:normal;color:rgb(0,0,0)"><font face="arial, sans-serif">Thank you </font></p><p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:12px;line-height:normal;color:rgb(0,0,0)"><font face="arial, sans-serif"><br></font></p><p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:12px;line-height:normal;color:rgb(0,0,0)"><font face="arial, sans-serif"><br></font></p><p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:12px;line-height:normal;color:rgb(0,0,0)"><font face="arial, sans-serif"><br></font></p><p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:12px;line-height:normal;color:rgb(0,0,0)"><font face="arial, sans-serif"><br></font></p><p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:12px;line-height:normal;color:rgb(0,0,0)"><font face="arial, sans-serif"><br></font></p><p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:12px;line-height:normal;color:rgb(0,0,0)"><font face="arial, sans-serif"><br></font></p></div></div>