<div dir="ltr"><div dir="ltr"><div>Hi,</div><div><br></div><div>I've got more accurate information about where are my lost messages.</div><div><br></div><div>Now I'm using disk-buffer in syslog-agent and syslog-relay, and I've checked that lost messages are the ones sent by the syslog-agent when the syslog-relay docker container is being killed. I can see those messages on syslog-agent log (I've got both agent & relay in debug mode) with its corresponding "Outgoing message" line, but those messages never reach the relay.</div><div><br></div><div>Could it be that the relay docker container still returns ACK to the agent (the agent resolves relay fqdn with a custom DNS) while syslog-ng process within the container is being stopped? I'm about to test again using tcpdump to confirm this theory,<br></div><div><br></div><div>BTW, disk-buffers works ok, sometimes I get some duplicated messages when restarting the relay but that's not a problem for me. Forget about my .persist file re-creation theory, it doesn't happen.<br></div><div><br></div><div>Regards.<br></div><div><br></div><div><br></div></div></div><div class="gmail_extra"><br><div class="gmail_quote">2018-09-13 18:07 GMT+02:00 Péter, Kókai <span dir="ltr"><<a href="mailto:peter.kokai@oneidentity.com" target="_blank">peter.kokai@oneidentity.com</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hello,<div><br></div><div>It would not make sense to replace the persist file after restart, so it is not something that syslog-ng does. Only if that file is corrupted, in that case at startup there should be a log about it, have you checked the syslog-ng logs ? (it would be better to enable debug and/or verbose logs, and if possible share it with us.)</div><div><br></div><div>Could you reproduce the same behavior without docker (if possible) ?</div><div><br></div><div><br></div><div><br></div><div>Best Regards,</div><div>Peter Kokai</div><div><div class="h5"><div dir="ltr"><br><div class="gmail_quote"><div dir="ltr">On Thu, Sep 13, 2018 at 4:44 PM Jose Angel Santiago <<a href="mailto:jasantiago@stratio.com" target="_blank">jasantiago@stratio.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div>Hi,</div><div><br></div><div>I guess I know what is happening, when I start from scratch the docker container, even I provide a persist file and a buffer file within the mapped volume, syslog-ng recreates them so all messages in buffer file which were not processed by the relay are lost.</div><div><br></div><div>Is there any way to tell syslog-ng to use an already existing .persist file so it doesn't recreate the .rqf file?</div><div><br></div><div>Regards.<br></div><div><br></div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">2018-09-13 16:23 GMT+02:00 Budai, László <span dir="ltr"><<a href="mailto:laszlo.budai@oneidentity.com" target="_blank">laszlo.budai@oneidentity.com</a>></span><wbr>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div>Hi,</div><div><br></div><div>one problem could be if the flush-limit would be greater than 1... in that case syslog-ng would use a HttpBulkMessageProcessor.</div><div>In this case syslog-ng pass the message to the HttpBulkMessageProcessor and sends back a positive ACK to the LogSource (so the message is removed from the diskbuffer), and if the dockerimage is killed, all the messages stored in the HttpBulkMessageProcessor are lost.</div><div>But in your case syslog-ng should use the HttpSingleMessageProcessor... which means that the messages are sent one-by-one... <br></div><div>Could you check the diskbuffer with the dqtool?</div><span class="m_8502744244687559657m_-28140536971310282m_-1370184941503478701m_3567492753405886787HOEnZb"><font color="#888888"><div><br></div><div><br></div><div>L.<br></div></font></span><div class="gmail_extra"><br><div class="gmail_quote"><div><div class="m_8502744244687559657m_-28140536971310282m_-1370184941503478701m_3567492753405886787h5">On Thu, Sep 13, 2018 at 3:50 PM, Jose Angel Santiago <span dir="ltr"><<a href="mailto:jasantiago@stratio.com" target="_blank">jasantiago@stratio.com</a>></span> wrote:<br></div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div class="m_8502744244687559657m_-28140536971310282m_-1370184941503478701m_3567492753405886787h5"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div>Hi,</div><div><br></div><div>I'm running syslog-ng (with an elasticsearch2 destination configured) within a docker container, and I'm trying to avoid loss of messages if I kill the docker container and I start it again.<br></div><div><br></div><div>This is my scenary:</div><div><br></div><div>- A service which produces 20 lines of log per second<br></div><div>- A sislog-ng instance reading from a wildcard-file source (but actually it only reads logs from the above service, let's call it syslog-agent), which sends all logs to another syslog-ng instance (the one running in a docker container, let's call it syslog-relay) though a network destination.</div><div>- The syslog-relay sends messages to an elasticsearch instance, with following configuration:</div><div><br></div><div>options {<br>    chain-hostnames(no);<br>    use-dns(no);<br>    keep-hostname(yes);<br>    owner("syslog-ng");<br>    group("stratio");<br>    perm(0640);<br>    time-reap(30);<br>    mark-freq(10);<br>    stats-freq(0);<br>    bad-hostname("^gconfd$");<br>    flush-lines(100);<br>    log-fifo-size(1000);<br>    };<br><br></div><div><i>destination d_elastic_default_0 {<br>    elasticsearch2(<br>        cluster("myelastic")<br>        cluster-url("<a href="https://myelastic.logs:9200" target="_blank">https://<wbr>myelastic.logs:9200</a>")<br>        client_mode("https")<br>        index("default")<br>        type("log")<br>        flush-limit(1)<br>        disk-buffer(<br>            mem-buf-size(16M)<br>            disk-buf-size(16M)<br>            reliable(yes)<br>            dir("/syslog-ng/log")<br>        )<br>        http-auth-type("clientcert")<br>        java-keystore-filepath("/etc/<wbr>syslog-ng/certificates/syslog-<wbr>relay.jks")<br>        java-keystore-password("<wbr>XXXXXX")<br>        java-truststore-filepath("/<wbr>etc/syslog-ng/certificates/ca-<wbr>bundle.jks")<br>        java-truststore-password("<wbr>XXXXXXXXXX")<br>    );<br>};</i><br><br></div><div>- The dir "/syslog-ng/log" is mapped to a path "/tmp/buffer" from the host where the docker container is running, so when I kill the docker container, the buffer file is not lost.</div><div>- I've set flush-limit to 1 because I thought that I may lost 1 message only as much.</div><div><br></div><div>This architecture is working fine (flush-limit=1 makes very slow, but for this test is ok), but if I kill the syslog-relay docker container, wait 5 to 10 seconds and start it again from scratch, I can see that several hundreds of logs are missing in elasticsearch. I check it by stopping the logger service and letting syslog-ng agent & relay to finish the process enqueued messages.<br></div><div><br></div><div>I can see in the syslog-agent stats that all logs messages have been processed, so it seems the problem is on the syslog-relay.  </div><div><br></div><div>Is this behaviour expected? If so, how can I protect against loss of messages in case of a syslog-relay docker container unexpected kill?</div><div><br></div><div>Thanks in advance.<br></div><div><br></div><div><br>-- <br><div class="m_8502744244687559657m_-28140536971310282m_-1370184941503478701m_3567492753405886787m_-7154903072736908858m_5742229891460430693m_-7066921092232463927gmail_signature"><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><br><div><div style="color:rgb(136,136,136);font-size:12.8px"><div dir="ltr"><div dir="ltr"><div style="color:rgb(0,0,0);font-family:"Times New Roman";font-size:12.7273px"><span style="font-size:9pt;font-family:Tahoma;color:rgb(217,217,217);font-weight:700;vertical-align:baseline;white-space:pre-wrap">|</span><span style="font-size:9pt;font-family:Tahoma;color:rgb(102,102,102);vertical-align:baseline;white-space:pre-wrap"> Jose Angel Santiago</span><br></div><div style="color:rgb(0,0,0);font-family:"Times New Roman";font-size:12.7273px"><div style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.7273px"><span><br><p dir="ltr" style="line-height:1.656;margin-top:0pt;margin-bottom:0pt"><a href="http://www.stratio.com/" target="_blank"><span style="font-size:10pt;font-family:Arial;color:rgb(17,85,204);background-color:transparent;vertical-align:baseline;white-space:pre-wrap"><img src="https://lh3.googleusercontent.com/SfSwo77PKD8TgM6em8B7mlcqOV9_N-AoAASRBMbZ3PFYgdFIibiMdr3zR_AZbMScWJOeRN7me-R_nK6vn1rnHSbApJVGfEjendjUa7LiGewC_fPGilVYciUS7E9v4mpKpl--caud" style="border:medium none" alt="Logo_signature2.png" width="96" height="22"></span></a></p><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:8pt;font-family:Tahoma;color:rgb(153,153,153);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Vía de las dos Castillas, 33, Ática 4, 3ª Planta</span></p><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:8pt;font-family:Tahoma;color:rgb(153,153,153);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">28224 Pozuelo de Alarcón, Madrid, Spain </span></p><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:8pt;font-family:Tahoma;color:rgb(153,153,153);vertical-align:baseline;white-space:pre-wrap"><a href="tel:+34%20918%2028%2064%2073" value="+34918286473" target="_blank">+34 918 286 473</a> | </span><a href="http://www.stratio.com" target="_blank">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<br></blockquote></div><br><br clear="all"><br>-- <br><div class="m_8502744244687559657m_-28140536971310282m_-1370184941503478701m_3567492753405886787gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><br><div><div style="color:rgb(136,136,136);font-size:12.8000001907349px"><div dir="ltr"><div dir="ltr"><div style="color:rgb(0,0,0);font-family:'Times New Roman';font-size:12.7272720336914px"><span style="font-size:9pt;font-family:Tahoma;color:rgb(217,217,217);font-weight:700;vertical-align:baseline;white-space:pre-wrap">|</span><span style="font-size:9pt;font-family:Tahoma;color:rgb(102,102,102);vertical-align:baseline;white-space:pre-wrap"> Jose Angel Santiago</span><br></div><div style="color:rgb(0,0,0);font-family:'Times New Roman';font-size:12.7272720336914px"><div style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.7272720336914px"><span><br><p dir="ltr" style="line-height:1.656;margin-top:0pt;margin-bottom:0pt"><a href="http://www.stratio.com/" target="_blank"><span style="font-size:10pt;font-family:Arial;color:rgb(17,85,204);background-color:transparent;vertical-align:baseline;white-space:pre-wrap"><img src="https://lh3.googleusercontent.com/SfSwo77PKD8TgM6em8B7mlcqOV9_N-AoAASRBMbZ3PFYgdFIibiMdr3zR_AZbMScWJOeRN7me-R_nK6vn1rnHSbApJVGfEjendjUa7LiGewC_fPGilVYciUS7E9v4mpKpl--caud" style="border:none" alt="Logo_signature2.png" width="96" height="22"></span></a></p><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:8pt;font-family:Tahoma;color:rgb(153,153,153);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Vía de las dos Castillas, 33, Ática 4, 3ª Planta</span></p><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:8pt;font-family:Tahoma;color:rgb(153,153,153);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">28224 Pozuelo de Alarcón, Madrid, Spain </span></p><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:8pt;font-family:Tahoma;color:rgb(153,153,153);vertical-align:baseline;white-space:pre-wrap"><a href="tel:+34%20918%2028%2064%2073" value="+34918286473" target="_blank">+34 918 286 473</a> | </span><a href="http://www.stratio.com" target="_blank"><span style="font-size:8pt;font-family:Tahoma;color:rgb(17,85,204);vertical-align:baseline;white-space:pre-wrap">www.stratio.com</span></a></p><a href="https://twitter.com/stratiobd" target="_blank"><span style="font-size:10pt;font-family:Arial;color:rgb(17,85,204);background-color:transparent;vertical-align:baseline;white-space:pre-wrap"><img src="https://lh3.googleusercontent.com/hOlHqJK94rZ7nBo9gzYKhLiwgogX1sgXV81pPDpAHHyRVeCjHxw0THNCq19zhcZalZiYeVYt9r4T_7LhoeLMxN1eTMnG46IfttV83WkTGC3jL1z04craZ8mmUn9hNnxDTIgh4_cT" style="border:none" width="20" height="20"></span></a><a href="https://www.linkedin.com/company/stratiobd" target="_blank"><span style="font-size:10pt;font-family:Arial;color:rgb(17,85,204);background-color:transparent;vertical-align:baseline;white-space:pre-wrap"><img src="https://lh6.googleusercontent.com/xs2vZh2SrmNnOaJO9i07vQzFNoghAaZytG_Zh09D9-ESjgOv5LHzLrbVNOFa-e3g5FYdmeg-kj6Ur6hID_h1joaSCdsHETfxTNqNSXan5nxBdGtmxq6NMWoh6puraVK1JGPxzhzX" style="border:none" width="20" height="20"></span></a><a href="https://www.youtube.com/c/StratioBD" target="_blank"><span style="font-size:8pt;font-family:Arial;color:rgb(17,85,204);background-color:transparent;font-style:italic;vertical-align:baseline;white-space:pre-wrap"><img src="https://lh3.googleusercontent.com/GdwY5Qtr3qEaHfNZszPc0lGx52_bfO00F-ge1MzYQPNLQmXf2jO4z2kvWwIEKi2swQ-IfLjNvpS7o4wR0nwNhnhOFd7zZ1zJDtFVZLkp52XyaM0GpEXySD2iLbWq-dw0cmXUe7Jj" style="border:none" width="20" height="20"></span></a></span><br></div></div></div></div></div></div></div></div></div></div></div></div></div>
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<br></blockquote></div><br><br clear="all"><br>-- <br><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><br><div><div style="color:rgb(136,136,136);font-size:12.8000001907349px"><div dir="ltr"><div dir="ltr"><div style="color:rgb(0,0,0);font-family:'Times New Roman';font-size:12.7272720336914px"><span style="font-size:9pt;font-family:Tahoma;color:rgb(217,217,217);font-weight:700;vertical-align:baseline;white-space:pre-wrap">|</span><span style="font-size:9pt;font-family:Tahoma;color:rgb(102,102,102);vertical-align:baseline;white-space:pre-wrap"> Jose Angel Santiago</span><br></div><div style="color:rgb(0,0,0);font-family:'Times New Roman';font-size:12.7272720336914px"><div style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.7272720336914px"><span><br><p dir="ltr" style="line-height:1.656;margin-top:0pt;margin-bottom:0pt"><a href="http://www.stratio.com/" target="_blank"><span style="font-size:10pt;font-family:Arial;color:rgb(17,85,204);background-color:transparent;vertical-align:baseline;white-space:pre-wrap"><img src="https://lh3.googleusercontent.com/SfSwo77PKD8TgM6em8B7mlcqOV9_N-AoAASRBMbZ3PFYgdFIibiMdr3zR_AZbMScWJOeRN7me-R_nK6vn1rnHSbApJVGfEjendjUa7LiGewC_fPGilVYciUS7E9v4mpKpl--caud" width="96" height="22" style="border:none" alt="Logo_signature2.png"></span></a></p><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:8pt;font-family:Tahoma;color:rgb(153,153,153);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Vía de las dos Castillas, 33, Ática 4, 3ª Planta</span></p><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:8pt;font-family:Tahoma;color:rgb(153,153,153);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">28224 Pozuelo de Alarcón, Madrid, Spain </span></p><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:8pt;font-family:Tahoma;color:rgb(153,153,153);vertical-align:baseline;white-space:pre-wrap">+34 918 286 473 | </span><a href="http://www.stratio.com" target="_blank"><span style="font-size:8pt;font-family:Tahoma;color:rgb(17,85,204);vertical-align:baseline;white-space:pre-wrap">www.stratio.com</span></a></p><a href="https://twitter.com/stratiobd" target="_blank"><span style="font-size:10pt;font-family:Arial;color:rgb(17,85,204);background-color:transparent;vertical-align:baseline;white-space:pre-wrap"><img src="https://lh3.googleusercontent.com/hOlHqJK94rZ7nBo9gzYKhLiwgogX1sgXV81pPDpAHHyRVeCjHxw0THNCq19zhcZalZiYeVYt9r4T_7LhoeLMxN1eTMnG46IfttV83WkTGC3jL1z04craZ8mmUn9hNnxDTIgh4_cT" width="20" height="20" style="border:none"></span></a><a href="https://www.linkedin.com/company/stratiobd" target="_blank"><span style="font-size:10pt;font-family:Arial;color:rgb(17,85,204);background-color:transparent;vertical-align:baseline;white-space:pre-wrap"><img src="https://lh6.googleusercontent.com/xs2vZh2SrmNnOaJO9i07vQzFNoghAaZytG_Zh09D9-ESjgOv5LHzLrbVNOFa-e3g5FYdmeg-kj6Ur6hID_h1joaSCdsHETfxTNqNSXan5nxBdGtmxq6NMWoh6puraVK1JGPxzhzX" width="20" height="20" style="border:none"></span></a><a href="https://www.youtube.com/c/StratioBD" target="_blank"><span style="font-size:8pt;font-family:Arial;color:rgb(17,85,204);background-color:transparent;font-style:italic;vertical-align:baseline;white-space:pre-wrap"><img src="https://lh3.googleusercontent.com/GdwY5Qtr3qEaHfNZszPc0lGx52_bfO00F-ge1MzYQPNLQmXf2jO4z2kvWwIEKi2swQ-IfLjNvpS7o4wR0nwNhnhOFd7zZ1zJDtFVZLkp52XyaM0GpEXySD2iLbWq-dw0cmXUe7Jj" width="20" height="20" style="border:none"></span></a></span><br></div></div></div></div></div></div></div></div></div></div></div></div></div>
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