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<div dir="auto">Second day in a row, a crash and restart as per below.<br />
<br />
Dirk, I know you suggested increasing ulimit in the shell which I thought I’d done yesterday (see my email from yesterday afternoon) but it appears not. <br />
<br />
I assume you’ve got around this with WA9PIE-2 so I’d really appreciate some help please. I don’t want the node rebooting regularly like this, especially not at weekends but I don’t know what to do next. The node runs as a service so how can I launch it from a shell script? I am still relatively inexperienced with Linux so I just don’t know what to do here. <br />
<br />
Thanks,<br />
<br />
73 Keith.<br />
<br />
<br />
<strong style="color:#b42419;font-family:Menlo;font-size: 11px">1745177833</strong><span style="color:#000000;font-family:Menlo;font-size: 11px">^RING: 19:37:13^(trace) writing /spider/local_data/rbn_cache Too many open files</span><span style="font-size: 11px"><br /></span><strong style="color:#b42419;font-family:Menlo;font-size: 11px">1745177833</strong><span style="color:#000000;font-family:Menlo;font-size: 11px">^RING: 19:37:13^(trace) Stack (2): RBN::DXDebug::confess in /spider/perl/RBN.pm line: 926</span><span style="font-size: 11px"><br /></span><strong style="color:#b42419;font-family:Menlo;font-size: 11px">1745177833</strong><span style="color:#000000;font-family:Menlo;font-size: 11px">^RING: 19:37:13^(trace) Stack (3): RBN::RBN::write_cache in /spider/perl/RBN.pm line: 871</span><span style="font-size: 11px"><br /></span><strong style="color:#b42419;font-family:Menlo;font-size: 11px">1745177833</strong><span style="color:#000000;font-family:Menlo;font-size: 11px">^RING: 19:37:13^(trace) Stack (4): main::RBN::per_minute in /spider/perl/cluster.pl line: 902</span><span style="font-size: 11px"><br /></span><strong style="color:#b42419;font-family:Menlo;font-size: 11px">1745177833</strong><span style="color:#000000;font-family:Menlo;font-size: 11px">^RING: 19:37:13^(*) DXSpider Ceasing</span><span style="font-size: 11px"><br /></span><strong style="color:#b42419;font-family:Menlo;font-size: 11px">1745177833</strong><span style="color:#000000;font-family:Menlo;font-size: 11px">^RING: 19:37:13^(*) DXQSL finished</span><span style="font-size: 11px"><br /></span><strong style="color:#b42419;font-family:Menlo;font-size: 11px">1745177833</strong><span style="color:#000000;font-family:Menlo;font-size: 11px">^RING: 19:37:13^(*) RBN:WRITE_CACHE size: 377.687KB time to write: 34 mS</span><span style="font-size: 11px"><br /></span><strong style="color:#b42419;font-family:Menlo;font-size: 11px">1745177833</strong><span style="color:#000000;font-family:Menlo;font-size: 11px">^RING: 19:37:13^(*) DXDupe finishing</span><span style="font-size: 11px"><br /></span><strong style="color:#b42419;font-family:Menlo;font-size: 11px">1745177833</strong><span style="color:#000000;font-family:Menlo;font-size: 11px">^RING: 19:37:13^(*) DXUser finished</span><span style="font-size: 11px"><br /></span><strong style="color:#b42419;font-family:Menlo;font-size: 11px">1745177833</strong><span style="color:#000000;font-family:Menlo;font-size: 11px">^RING: 19:37:13^(cluster) DXSpider v1.57 build 615 (git: mojo/9f7fb47f[r]) using perl v5.38.2 on linux ended</span><span style="font-size: 11px"><br /></span><strong style="color:#b42419;font-family:Menlo;font-size: 11px">1745177833</strong><span style="color:#000000;font-family:Menlo;font-size: 11px">^RING: 19:37:13^(*) bye bye everyone - bye bye</span><span style="font-size: 11px"><br /></span><strong style="color:#b42419;font-family:Menlo;font-size: 11px">1745177833</strong><span style="color:#b42419;font-family:Menlo;font-size: 11px">^###</span><span style="font-size: 11px"><br /></span><strong style="color:#b42419;font-family:Menlo;font-size: 11px">1745177833</strong><span style="color:#000000;font-family:Menlo;font-size: 11px">^### RINGBUFFER END 501 debug lines written</span><span style="font-size: 11px"><br /></span></div>
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<div name="messageReplySection">On 19 Apr 2025 at 16:27 +0100, Keith, G6NHU via Dxspider-support <dxspider-support@tobit.co.uk>, wrote:<br />
<blockquote type="cite" style="border-left-color:#1abc9c; margin:5px 5px; padding-left:10px; border-left-width:thin; border-left-style:solid;" class="spark_indent">
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<div dir="auto"><span style="font-family:Arial;font-size: medium">This has just happened again to me, this time on the DO droplet that’s running the node.</span><span style="font-size: medium"><br /></span><span style="font-size: medium"><br /></span><span style="font-family:Arial;font-size: 16px">I’ve added </span><span style="font-family:Arial;font-size: 16px">ulimit -S -n 65536 to .bashrc in both sysop and root logins as per here: </span><a href="https://askubuntu.com/questions/1492277/on-ubuntu-22-04-editing-limits-conf-to-increase-number-of-file-descriptors-does" target="_blank">https://askubuntu.com/questions/1492277/on-ubuntu-22-04-editing-limits-conf-to-increase-number-of-file-descriptors-does</a><span style="font-size: 16px"><br /></span><span style="font-size: 16px"><br /></span><span style="font-family:Arial;font-size: 16px">Hopefully that’ll fix it.</span><span style="font-size: 16px"><br /></span><span style="font-size: 16px"><br /></span><span style="font-family:Arial;font-size: 16px">73 Keith.</span><span style="font-size: 16px"><br /></span><span style="font-size: 16px"><br /></span>1745074921^###<br />
1745074921^### RINGBUFFER END 501 debug lines written<br />
1745074921^###<br />
1745074921^(trace) can't open /spider/local_data/wcy/param Too many open files<br />
1745074921^(trace) Stack (2): WCY::DXDebug::confess in /spider/perl/WCY.pm line: 79<br />
1745074921^(trace) Stack (3): WCY::WCY::store in /spider/perl/WCY.pm line: 123<br />
1745074921^(trace) Stack (4): DXProt::WCY::update in /spider/perl/DXProtHandle.pm line: 1775<br />
1745074921^(trace) Stack (5): DXProt::DXProt::handle_73 in /spider/perl/DXProt.pm line: 466<br />
1745074921^(trace) Stack (6): DXChannel::DXProt::normal in /spider/perl/DXChannel.pm line: 746<br />
1745074921^(trace) Stack (7): DXChannel::DXChannel::process_one in /spider/perl/DXChannel.pm line: 239<br />
1745074921^(trace) Stack (8): main::DXChannel::rec in /spider/perl/<a href="http://cluster.pl" target="_blank">cluster.pl</a> line: 424<br />
1745074921^(trace) Stack (9): ExtMsg::main::__ANON__ in /spider/perl/ExtMsg.pm line: 120<br />
1745074921^(trace) Stack (10): Msg::ExtMsg::dequeue in /spider/perl/Msg.pm line: 500<br />
1745074921^(trace) Stack (11): ExtMsg::Msg::_rcv in /spider/perl/ExtMsg.pm line: 83<br />
1745074921^(trace) Stack (12): Msg::ExtMsg::_rcv in /spider/perl/Msg.pm line: 511<br />
1745074921^(*) DXSpider Ceasing<br />
1745074921^(*) DXQSL finished<br />
1745074921^(*) RBN:WRITE_CACHE size: 357.289KB time to write: 31 mS<br />
1745074921^(*) DXDupe finishing<br />
1745074921^(*) DXUser finished<br />
1745074921^(cluster) DXSpider v1.57 build 615 (git: mojo/9f7fb47f[r]) using perl v5.38.2 on linux ended<br />
1745074921^(*) bye bye everyone - bye bye</div>
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<div name="messageReplySection">On 23 Mar 2025 at 23:08 +0000, djk via Dxspider-support <dxspider-support@tobit.co.uk>, wrote:<br />
<blockquote type="cite" style="border-left-color:#e67e22; margin:5px 5px; padding-left:10px; border-left-width:thin; border-left-style:solid;" class="spark_indent">
<p>There is standard limit of 1024 files open at once per process. You can change this in a shell with 'ulimit -n 2048' (for example). There is also way of changing it system wide in systemd (<spit>) but you'll have to research that yourself or start the node in a shell script like:</p>
#!/bin/sh<br />
ulimit -n 2048<br />
/spider/perl/cluster.pl
<p>Personally, 900+ users on a 4GB RPi x is going some, especially considering power required to run some windows cluster software (and then still not keeping).</p>
<p>What does your 'top' say when you are running it at this sort of usage?</p>
<p>Dirk G1TLH<br /></p>
<div class="moz-cite-prefix">On 23/03/2025 18:54, Keith, G6NHU via Dxspider-support wrote:<br /></div>
<blockquote type="cite" cite="mid:2133a6f9-b6b6-459c-b65f-8964ac3fc45a@Spark" style="border-left-color:#3498db; margin:5px 5px; padding-left:10px; border-left-width:thin; border-left-style:solid;" class="spark_indent">
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<div dir="auto">I suppose this really is for Dirk.<br />
<br />
This has never happened before - I came into the shack with a freshly poured shackbeer and noticed my ssh session had closed so I logged back in and saw my uptime was just 21 minutes.<br />
<br />
Checking the debug log (attached as a .zip), this is what happened in the same timestamp with the actual error that caused the crash being at the end.<br />
<br />
My cluster is running on a Pi5 with 4Gb RAM and an external Samsung SSD. I don’t know the exact number of connected users but when I logged back on, there were 938 so I’d imagine the number prior to the crash was around the same. The node had been up for about a month.<br />
<br />
“Too many open files” ?<br />
<br />
73 Keith<br />
<br />
1742753087^###<br />
1742753087^### RINGBUFFER END 501 debug lines written<br />
1742753087^###<br />
1742753087^(trace) writing /spider/local_data/rbn_cache Too many open files<br />
1742753087^(trace) Stack (2): RBN::DXDebug::confess in /spider/perl/RBN.pm line: 926<br />
1742753087^(trace) Stack (3): RBN::RBN::write_cache in /spider/perl/RBN.pm line: 871<br />
1742753087^(trace) Stack (4): main::RBN::per_minute in /spider/perl/<a href="http://cluster.pl" target="_blank" moz-do-not-send="true">cluster.pl</a> line: 892<br />
1742753087^(*) DXSpider Ceasing<br />
1742753087^(*) DXQSL finished<br />
1742753087^(*) RBN:WRITE_CACHE size: 423.804KB time to write: 26 mS<br />
1742753087^(*) DXDupe finishing<br />
1742753087^(*) DXUser finished<br />
1742753087^(cluster) DXSpider v1.57 build 568 (git: mojo/0920a333[r]) using perl v5.36.0 on linux ended<br />
1742753087^(*) bye bye everyone - bye bye<br />
1742753087^###<br />
1742753087^### RINGBUFFER START at line 0 (zero base)<br />
1742753087^###<br />
<br />
Then it repeats<br />
<br />
1742753087^RING: 18:04:47^(trace) writing /spider/local_data/rbn_cache Too many open files<br />
1742753087^RING: 18:04:47^(trace) Stack (2): RBN::DXDebug::confess in /spider/perl/RBN.pm line: 926<br />
1742753087^RING: 18:04:47^(trace) Stack (3): RBN::RBN::write_cache in /spider/perl/RBN.pm line: 871<br />
1742753087^RING: 18:04:47^(trace) Stack (4): main::RBN::per_minute in /spider/perl/<a href="http://cluster.pl" target="_blank" moz-do-not-send="true">cluster.pl</a> line: 892<br />
1742753087^RING: 18:04:47^(*) DXSpider Ceasing<br />
1742753087^RING: 18:04:47^(*) DXQSL finished<br />
1742753087^RING: 18:04:47^(*) RBN:WRITE_CACHE size: 423.804KB time to write: 26 mS<br />
1742753087^RING: 18:04:47^(*) DXDupe finishing<br />
1742753087^RING: 18:04:47^(*) DXUser finished<br />
1742753087^RING: 18:04:47^(cluster) DXSpider v1.57 build 568 (git: mojo/0920a333[r]) using perl v5.36.0 on linux ended<br />
1742753087^RING: 18:04:47^(*) bye bye everyone - bye bye<br />
1742753087^###<br />
1742753087^### RINGBUFFER END 501 debug lines written<br />
1742753087^###</div>
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