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    The `<span style="font-size:12pt">drop_requests` statistic is
      incremented when:<br>
      * the request is dropped by a pre-script callback (like B2B when
      there is no script execution for certain messages)<br>
      * the stateless `forward()` core function failed to send out
      something.<br>
      <br>
      Regards,<br>
    </span>
    <pre class="moz-signature" cols="72">Bogdan-Andrei Iancu

OpenSIPS Founder and Developer
  <a class="moz-txt-link-freetext" href="https://www.opensips-solutions.com">https://www.opensips-solutions.com</a>
  <a class="moz-txt-link-freetext" href="https://www.siphub.com">https://www.siphub.com</a></pre>
    <div class="moz-cite-prefix">On 18.04.2024 17:19, Johan De Clercq
      wrote:<br>
    </div>
    <blockquote type="cite"
cite="mid:CAEVWGm_SCK+E0pwc8DAo0eW9g6VjSEC_hRjtVFCSvjtBQhTyww@mail.gmail.com">
      <meta http-equiv="content-type" content="text/html; charset=UTF-8">
      <div dir="ltr">
        <div dir="ltr">
          <div dir="ltr">No I don't. 
            <div>what I find strange is that MAX_RECV_BUFFER_SIZE 262144
              is the default value of net.core.rmem_max and
              net.core.rmem_default. </div>
            <br>
            <div class="gmail_quote">
              <div dir="ltr" class="gmail_attr">Op do 18 apr 2024 om
                16:02 schreef Ben Newlin <<a
                  href="mailto:Ben.Newlin@genesys.com" target="_blank"
                  moz-do-not-send="true" class="moz-txt-link-freetext">Ben.Newlin@genesys.com</a>>:<br>
              </div>
              <blockquote class="gmail_quote"
style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
                <div>
                  <div lang="EN-US">
                    <div>
                      <p class="MsoNormal"><span style="font-size:11pt">Are
                          you calling drop() anywhere in your script?</span></p>
                      <p class="MsoNormal"><span style="font-size:11pt"> </span></p>
                      <p class="MsoNormal"><span style="font-size:11pt"><a
href="https://www.opensips.org/Documentation/Script-CoreFunctions-3-4#toc13"
                            target="_blank" moz-do-not-send="true"
                            class="moz-txt-link-freetext">https://www.opensips.org/Documentation/Script-CoreFunctions-3-4#toc13</a></span></p>
                      <p class="MsoNormal"><span style="font-size:11pt"> </span></p>
                      <p class="MsoNormal"><span
style="font-size:11pt;font-family:Calibri,sans-serif;color:black">Ben
                          Newlin</span><span style="font-size:11pt"></span></p>
                      <p class="MsoNormal"><span style="font-size:11pt"> </span></p>
                      <div
id="m_5205456487139469700m_-318613669772535148mail-editor-reference-message-container">
                        <div>
                          <div
style="border-right:none;border-bottom:none;border-left:none;border-top:1pt solid rgb(181,196,223);padding:3pt 0in 0in">
                            <p class="MsoNormal"
                              style="margin-bottom:12pt"><b><span
                                  style="font-size:12pt;color:black">From:
                                </span></b><span
                                style="font-size:12pt;color:black">Users
                                <<a
href="mailto:users-bounces@lists.opensips.org" target="_blank"
                                  moz-do-not-send="true"
                                  class="moz-txt-link-freetext">users-bounces@lists.opensips.org</a>>
                                on behalf of Johan De Clercq <<a
                                  href="mailto:Johan@democon.be"
                                  target="_blank" moz-do-not-send="true"
                                  class="moz-txt-link-freetext">Johan@democon.be</a>><br>
                                <b>Date: </b>Thursday, April 18, 2024
                                at 5:27 AM<br>
                                <b>To: </b>OpenSIPS users mailling list
                                <<a
                                  href="mailto:users@lists.opensips.org"
                                  target="_blank" moz-do-not-send="true"
                                  class="moz-txt-link-freetext">users@lists.opensips.org</a>><br>
                                <b>Subject: </b>Re: [OpenSIPS-Users]
                                question on core statistics.</span></p>
                          </div>
                          <div>
                            <div>
                              <div>
                                <div>
                                  <div>
                                    <table
style="border-collapse:collapse;border:none" cellspacing="0"
                                      cellpadding="0" border="1">
                                      <tbody>
                                        <tr>
                                          <td
style="border:1pt solid rgb(182,0,0);background:white;padding:0.75pt">
                                            <p class="MsoNormal"><b><span
style="font-size:12pt;font-family:Calibri,sans-serif;color:rgb(182,0,0)"> EXTERNAL
                                                  EMAIL - Please use
                                                  caution with links and
                                                  attachments </span></b></p>
                                          </td>
                                        </tr>
                                      </tbody>
                                    </table>
                                  </div>
                                  <p class="MsoNormal"><span
style="font-size:12pt;font-family:Helvetica"> </span></p>
                                  <div class="MsoNormal"
                                    style="text-align:center"
                                    align="center"><span
style="font-size:12pt;font-family:Helvetica">
                                      <hr width="100%" size="0"
                                        align="center">
                                    </span></div>
                                </div>
                                <p class="MsoNormal"><span
                                    style="font-size:12pt">would it make
                                    sense to recompile with other flags
                                    ? And how do I set them  (I don't
                                    find these of menuconfig's compile
                                    options)? </span></p>
                              </div>
                              <div>
                                <p class="MsoNormal"><span
                                    style="font-size:12pt">Currently it
                                    has MAX_RECV_BUFFER_SIZE 262144 and
                                    BUF_SIZE 65535. </span></p>
                              </div>
                              <div>
                                <p class="MsoNormal"><span
                                    style="font-size:12pt"> </span></p>
                              </div>
                              <div>
                                <p class="MsoNormal"><span
                                    style="font-size:12pt">Can somebody
                                    explain also what both flags mean. </span></p>
                              </div>
                            </div>
                          </div>
                          <p class="MsoNormal"><span
                              style="font-size:12pt"> </span></p>
                          <div>
                            <div>
                              <p class="MsoNormal"><span
                                  style="font-size:12pt">Op do 18 apr
                                  2024 om 11:07 schreef Johan De Clercq
                                  <<a href="mailto:Johan@democon.be"
                                    target="_blank"
                                    moz-do-not-send="true"
                                    class="moz-txt-link-freetext">Johan@democon.be</a>>:</span></p>
                            </div>
                            <blockquote
style="border-top:none;border-right:none;border-bottom:none;border-left:1pt solid rgb(204,204,204);padding:0in 0in 0in 6pt;margin-left:4.8pt;margin-right:0in">
                              <div>
                                <div>
                                  <div>
                                    <p class="MsoNormal"><span
                                        style="font-size:12pt">would it
                                        make sense to recompile with
                                        other flags ? </span></p>
                                  </div>
                                  <div>
                                    <p class="MsoNormal"><span
                                        style="font-size:12pt">Currently
                                        it has MAX_RECV_BUFFER_SIZE
                                        262144 and BUF_SIZE 65535. </span></p>
                                  </div>
                                  <div>
                                    <p class="MsoNormal"><span
                                        style="font-size:12pt"> </span></p>
                                  </div>
                                  <div>
                                    <p class="MsoNormal"><span
                                        style="font-size:12pt">Can
                                        somebody explain also what both
                                        flags mean. </span></p>
                                  </div>
                                  <div>
                                    <p class="MsoNormal"><span
                                        style="font-size:12pt"> </span></p>
                                    <div>
                                      <div>
                                        <p class="MsoNormal"><span
                                            style="font-size:12pt"> </span></p>
                                      </div>
                                      <div>
                                        <p class="MsoNormal"><span
                                            style="font-size:12pt">flags:
                                            STATS: On, DISABLE_NAGLE,
                                            USE_MCAST, SHM_MMAP,
                                            PKG_MALLOC, F_MALLOC,
                                            FAST_LOCK-ADAPTIVE_WAIT</span></p>
                                      </div>
                                      <div>
                                        <p class="MsoNormal"><span
                                            style="font-size:12pt">ADAPTIVE_WAIT_LOOPS=1024,
                                            MAX_RECV_BUFFER_SIZE 262144,
                                            MAX_LISTEN 16, MAX_URI_SIZE
                                            1024, BUF_SIZE 65535</span></p>
                                      </div>
                                      <div>
                                        <p class="MsoNormal"><span
                                            style="font-size:12pt">poll
                                            method support: poll, epoll,
                                            sigio_rt, select.</span></p>
                                      </div>
                                    </div>
                                  </div>
                                </div>
                              </div>
                              <p class="MsoNormal"><span
                                  style="font-size:12pt"> </span></p>
                              <div>
                                <div>
                                  <p class="MsoNormal"><span
                                      style="font-size:12pt">Op do 18
                                      apr 2024 om 10:32 schreef Johan De
                                      Clercq <<a
                                        href="mailto:Johan@democon.be"
                                        target="_blank"
                                        moz-do-not-send="true"
                                        class="moz-txt-link-freetext">Johan@democon.be</a>>:</span></p>
                                </div>
                                <blockquote
style="border-top:none;border-right:none;border-bottom:none;border-left:1pt solid rgb(204,204,204);padding:0in 0in 0in 6pt;margin-left:4.8pt;margin-right:0in">
                                  <div>
                                    <div>
                                      <div>
                                        <p class="MsoNormal"><span
                                            style="font-size:12pt"> </span></p>
                                        <div>
                                          <p class="MsoNormal"><span
                                              style="font-size:12pt">Guys, </span></p>
                                        </div>
                                        <div>
                                          <p class="MsoNormal"><span
                                              style="font-size:12pt"> </span></p>
                                        </div>
                                        <div>
                                          <p class="MsoNormal"><span
                                              style="font-size:12pt">I
                                              have an opensips instance
                                              running with 24 worker
                                              children. </span></p>
                                        </div>
                                        <div>
                                          <p class="MsoNormal"><span
                                              style="font-size:12pt">The
                                              worker load is very low. </span></p>
                                        </div>
                                        <div>
                                          <p class="MsoNormal"><span
                                              style="font-size:12pt">UDP
                                              queues are on 50 megs. </span></p>
                                        </div>
                                        <div>
                                          <p class="MsoNormal"><span
                                              style="font-size:12pt"> </span></p>
                                        </div>
                                        <div>
                                          <p class="MsoNormal"><span
                                              style="font-size:12pt">when
                                              i query via the OS </span></p>
                                        </div>
                                        <div>
                                          <div>
                                            <p class="MsoNormal"><span
                                                style="font-size:12pt">cat
                                                /proc/net/udp</span></p>
                                          </div>
                                          <div>
                                            <p class="MsoNormal"><span
                                                style="font-size:12pt"> 
                                                sl  local_address
                                                rem_address   st
                                                tx_queue rx_queue tr
                                                tm->when retrnsmt 
                                                 uid  timeout inode ref
                                                pointer drops           
                                                 </span></p>
                                          </div>
                                          <div>
                                            <p class="MsoNormal"><span
                                                style="font-size:12pt"> 
                                                590: 03231D0A:13C4
                                                00000000:0000 07
                                                00000000:00000000
                                                00:00000000 00000000   
                                                 0        0 413684019 2
                                                ffff880074820bc0 0     </span></p>
                                          </div>
                                          <div>
                                            <p class="MsoNormal"><span
                                                style="font-size:12pt"> 
                                                591: 03231D0A:13C5
                                                00000000:0000 07
                                                00000000:00000000
                                                00:00000000 00000000   
                                                 0        0 413766438 2
                                                ffff880465e4a440 0     </span></p>
                                          </div>
                                          <div>
                                            <p class="MsoNormal"><span
                                                style="font-size:12pt"> 
                                                592: 03231D0A:13C6
                                                00000000:0000 07
                                                00000000:00000000
                                                00:00000000 00000000   
                                                 0        0 412035865 2
                                                ffff8803e5a56b80 0     </span></p>
                                          </div>
                                          <div>
                                            <p class="MsoNormal"><span
                                                style="font-size:12pt"> 
                                                934: 01231D0A:151C
                                                00000000:0000 07
                                                00000000:00000000
                                                00:00000000 00000000   
                                                 0        0 26790 2
                                                ffff88046c054840 0     
                                                   </span></p>
                                          </div>
                                          <div>
                                            <p class="MsoNormal"><span
                                                style="font-size:12pt"> 
                                                935: 0201FFEF:151D
                                                00000000:0000 07
                                                00000000:00000000
                                                00:00000000 00000000   
                                                 0        0 26787 2
                                                ffff88046c054bc0 0     
                                                   </span></p>
                                          </div>
                                          <div>
                                            <p class="MsoNormal"><span
                                                style="font-size:12pt"> 
                                                935: 01231D0A:151D
                                                00000000:0000 07
                                                00000000:00000000
                                                00:00000000 00000000   
                                                 0        0 26791 2
                                                ffff88046c0544c0 0     
                                                   </span></p>
                                          </div>
                                          <div>
                                            <p class="MsoNormal"><span
                                                style="font-size:12pt"> 1972:
                                                00000000:D92A
                                                00000000:0000 07
                                                00000000:00000000
                                                00:00000000 00000000   
                                                 0        0 15506 2
                                                ffff88046dce5040 0     
                                                   </span></p>
                                          </div>
                                          <div>
                                            <p class="MsoNormal"><span
                                                style="font-size:12pt"> 5479:
                                                00000000:E6DD
                                                00000000:0000 07
                                                00000000:00000000
                                                00:00000000 00000000   
                                                 0        0 22811 2
                                                ffff880465e4ab40 0     
                                                   </span></p>
                                          </div>
                                          <div>
                                            <p class="MsoNormal"><span
                                                style="font-size:12pt">12075:
                                                AA0914AC:00A1
                                                00000000:0000 07
                                                00000000:00000000
                                                00:00000000 00000000   
                                                 0        0 20572 2
                                                ffff88086d020800 0     
                                                   </span></p>
                                          </div>
                                          <div>
                                            <p class="MsoNormal"><span
                                                style="font-size:12pt">12075:
                                                0100007F:00A1
                                                00000000:0000 07
                                                00000000:00000000
                                                00:00000000 00000000   
                                                 0        0 20571 2
                                                ffff88086d020b80 0     
                                                   </span></p>
                                          </div>
                                          <div>
                                            <p class="MsoNormal"><span
                                                style="font-size:12pt">13320:
                                                00000000:857E
                                                00000000:0000 07
                                                00000000:00000000
                                                00:00000000 00000000 
                                                 100        0 17515 2
                                                ffff8800368ac780 0     
                                                   </span></p>
                                          </div>
                                          <div>
                                            <p class="MsoNormal"><span
                                                style="font-size:12pt">15661:
                                                00000000:CEA3
                                                00000000:0000 07
                                                00000000:00000000
                                                00:00000000 00000000   
                                                 0        0 15505 2
                                                ffff8800368acb00 0 </span></p>
                                          </div>
                                        </div>
                                        <div>
                                          <p class="MsoNormal"><span
                                              style="font-size:12pt"> </span></p>
                                        </div>
                                        <div>
                                          <p class="MsoNormal"><span
                                              style="font-size:12pt">=>
                                              no drops</span></p>
                                        </div>
                                        <div>
                                          <p class="MsoNormal"><span
                                              style="font-size:12pt"> </span></p>
                                        </div>
                                        <div>
                                          <p class="MsoNormal"><span
                                              style="font-size:12pt">what
                                              worries me is that there
                                              are drop requests and
                                              they  go up when I query
                                              via the mi interface </span></p>
                                        </div>
                                        <div>
                                          <p class="MsoNormal"><span
                                              style="font-size:12pt">opensipsctl
                                              fifo get_statistics
                                              drop_requests</span></p>
                                        </div>
                                        <div>
                                          <p class="MsoNormal"><span
                                              style="font-size:12pt">core:drop_requests::
                                              198107</span></p>
                                        </div>
                                        <div>
                                          <p class="MsoNormal"><span
                                              style="font-size:12pt">opensipsctl
                                              fifo get_statistics
                                              drop_requests</span></p>
                                        </div>
                                        <div>
                                          <p class="MsoNormal"><span
                                              style="font-size:12pt">core:drop_requests::
                                              199157</span></p>
                                        </div>
                                        <div>
                                          <p class="MsoNormal"><span
                                              style="font-size:12pt">opensipsctl_reg
                                              fifo get_statistics
                                              drop_requests</span></p>
                                        </div>
                                        <div>
                                          <p class="MsoNormal"><span
                                              style="font-size:12pt">core:drop_requests::
                                              204116</span></p>
                                        </div>
                                        <div>
                                          <p class="MsoNormal"><span
                                              style="font-size:12pt"> </span></p>
                                        </div>
                                        <div>
                                          <p class="MsoNormal"><span
                                              style="font-size:12pt">I
                                              don't see any memory
                                              issue, also the
                                              processload is low. </span></p>
                                        </div>
                                        <div>
                                          <p class="MsoNormal"><span
                                              style="font-size:12pt"> </span></p>
                                        </div>
                                        <div>
                                          <p class="MsoNormal"><span
                                              style="font-size:12pt"> </span></p>
                                        </div>
                                        <div>
                                          <p class="MsoNormal"><span
                                              style="font-size:12pt">so
                                              3 questions:</span></p>
                                        </div>
                                        <div>
                                          <p class="MsoNormal"><span
                                              style="font-size:12pt">-
                                              what exactly is
                                              drop_request. </span></p>
                                        </div>
                                        <div>
                                          <p class="MsoNormal"><span
                                              style="font-size:12pt">-
                                              do I need to worry about
                                              this </span></p>
                                        </div>
                                        <div>
                                          <p class="MsoNormal"><span
                                              style="font-size:12pt">-
                                              how can I make them go
                                              lower. </span></p>
                                        </div>
                                      </div>
                                    </div>
                                  </div>
                                </blockquote>
                              </div>
                            </blockquote>
                          </div>
                        </div>
                      </div>
                    </div>
                  </div>
                  _______________________________________________<br>
                  Users mailing list<br>
                  <a href="mailto:Users@lists.opensips.org"
                    target="_blank" moz-do-not-send="true"
                    class="moz-txt-link-freetext">Users@lists.opensips.org</a><br>
                  <a
href="http://lists.opensips.org/cgi-bin/mailman/listinfo/users"
                    rel="noreferrer" target="_blank"
                    moz-do-not-send="true" class="moz-txt-link-freetext">http://lists.opensips.org/cgi-bin/mailman/listinfo/users</a><br>
                </div>
              </blockquote>
            </div>
          </div>
        </div>
      </div>
      <br>
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      <pre class="moz-quote-pre" wrap="">_______________________________________________
Users mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Users@lists.opensips.org">Users@lists.opensips.org</a>
<a class="moz-txt-link-freetext" href="http://lists.opensips.org/cgi-bin/mailman/listinfo/users">http://lists.opensips.org/cgi-bin/mailman/listinfo/users</a>
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