https://www.limulus-computing.com/Limulus-Manual/ 2026-10-12T05:51:44+00:00 https://www.limulus-computing.com/Limulus-Manual/ https://www.limulus-computing.com/Limulus-Manual/lib/exe/fetch.php?media=wiki:logo.png text/html 2026-09-14T21:33:12+00:00 deadline (deadline@undisclosed.example.com) https://www.limulus-computing.com/Limulus-Manual/doku.php?id=hpc_logs_and_log_management&rev=1789421592&do=diff HPC Logs and Log Management What Logs Should I Check? The logs have been configured so that all important information can be found on the headnode. There should not be a need to log in to nodes and check log files. The following is some general guidance when looking for problems. X text/html 2026-09-14T21:29:18+00:00 deadline (deadline@undisclosed.example.com) https://www.limulus-computing.com/Limulus-Manual/doku.php?id=start&rev=1789421358&do=diff Welcome to the Limulus Systems Manual Limulus Cluster Computing systems are available in either four- or eight-node desk-side cases or in a 4-node rack-mount unit. Multiple systems can be connected together to work as a larger cluster. There are two software stacks available: High Performance Computing (HPC) or scalable data analytics (Hadoop, Spark, Kafka, etc.). text/html 2026-08-19T17:17:10+00:00 deadline (deadline@undisclosed.example.com) https://www.limulus-computing.com/Limulus-Manual/doku.php?id=site-statisics&rev=1787159830&do=diff Statistics ---------- text/html 2026-06-30T20:49:38+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.limulus-computing.com/Limulus-Manual/doku.php?image=wiki%3Adokuwiki.svg&ns=wiki&rev=1782852578&tab_details=history&media_do=diff&do=media <img src="https://www.limulus-computing.com/Limulus-Manual/lib/exe/fetch.php?w=500&amp;h=500&amp;tok=c3fe1c&amp;media=wiki:dokuwiki.svg" alt="dokuwiki.svg" loading="lazy" width="500" height="500" /> text/html 2025-10-15T19:21:31+00:00 deadline (deadline@undisclosed.example.com) https://www.limulus-computing.com/Limulus-Manual/doku.php?id=using_the_zeppelin_web_notebook&rev=1760556091&do=diff TBC text/html 2025-10-15T19:12:28+00:00 deadline (deadline@undisclosed.example.com) https://www.limulus-computing.com/Limulus-Manual/doku.php?id=fan_control&rev=1760555548&do=diff Limulus Fan Control There are two fans that pull air from under the case. The fans are directly under the blades and ensure there is adequate airflow to the blade CPUs. The fans are connected to a single main motherboard auxiliary fan connector using a text/html 2025-09-09T14:23:08+00:00 deadline (deadline@undisclosed.example.com) https://www.limulus-computing.com/Limulus-Manual/doku.php?image=wiki%3Acase-back-crop.png&ns=wiki&rev=1757427788&tab_details=history&media_do=diff&do=media <img src="https://www.limulus-computing.com/Limulus-Manual/lib/exe/fetch.php?w=500&amp;h=500&amp;tok=017e11&amp;media=wiki:case-back-crop.png" alt="case-back-crop.png" loading="lazy" width="500" height="500" /> text/html 2025-09-09T14:22:44+00:00 deadline (deadline@undisclosed.example.com) https://www.limulus-computing.com/Limulus-Manual/doku.php?image=wiki%3Acase-side-angle-blade-in-hpc-crop.png&ns=wiki&rev=1757427764&tab_details=history&media_do=diff&do=media <img src="https://www.limulus-computing.com/Limulus-Manual/lib/exe/fetch.php?w=500&amp;h=500&amp;tok=b055f8&amp;media=wiki:case-side-angle-blade-in-hpc-crop.png" alt="case-side-angle-blade-in-hpc-crop.png" 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text/html 2025-09-08T14:13:12+00:00 deadline (deadline@undisclosed.example.com) https://www.limulus-computing.com/Limulus-Manual/doku.php?image=wiki%3Anode-power-control-main-all-up-1.png&ns=wiki&rev=1757340792&tab_details=history&media_do=diff&do=media <img src="https://www.limulus-computing.com/Limulus-Manual/lib/exe/fetch.php?w=500&amp;h=500&amp;tok=ebaf67&amp;media=wiki:node-power-control-main-all-up-1.png" alt="node-power-control-main-all-up-1.png" loading="lazy" width="500" height="500" /> text/html 2025-09-08T14:12:47+00:00 deadline (deadline@undisclosed.example.com) https://www.limulus-computing.com/Limulus-Manual/doku.php?image=wiki%3Anode-power-control-main-1.png&ns=wiki&rev=1757340767&tab_details=history&media_do=diff&do=media <img src="https://www.limulus-computing.com/Limulus-Manual/lib/exe/fetch.php?w=500&amp;h=500&amp;tok=631b6b&amp;media=wiki:node-power-control-main-1.png" alt="node-power-control-main-1.png" loading="lazy" width="500" height="500" /> text/html 2025-09-08T14:12:07+00:00 deadline (deadline@undisclosed.example.com) https://www.limulus-computing.com/Limulus-Manual/doku.php?image=wiki%3Anode-power-control-confirm-1.png&ns=wiki&rev=1757340727&tab_details=history&media_do=diff&do=media <img src="https://www.limulus-computing.com/Limulus-Manual/lib/exe/fetch.php?w=500&amp;h=500&amp;tok=3a517a&amp;media=wiki:node-power-control-confirm-1.png" alt="node-power-control-confirm-1.png" loading="lazy" width="500" height="500" /> text/html 2021-01-11T18:09:33+00:00 deadline (deadline@undisclosed.example.com) https://www.limulus-computing.com/Limulus-Manual/doku.php?image=wiki%3Ahdfs-drive-bays.png&ns=wiki&rev=1610388573&tab_details=history&media_do=diff&do=media <img src="https://www.limulus-computing.com/Limulus-Manual/lib/exe/fetch.php?w=500&amp;h=500&amp;tok=1261de&amp;media=wiki:hdfs-drive-bays.png" alt="hdfs-drive-bays.png" loading="lazy" width="500" height="500" /> text/html 2021-01-11T17:16:56+00:00 deadline (deadline@undisclosed.example.com) https://www.limulus-computing.com/Limulus-Manual/doku.php?image=wiki%3Ahadoop-drive-dia2.pdf&ns=wiki&rev=1610385416&tab_details=history&media_do=diff&do=media <img src="https://www.limulus-computing.com/Limulus-Manual/lib/images/fileicons/svg/pdf.svg" alt="hadoop-drive-dia2.pdf" loading="lazy" width="500" height="500" /> text/html 2021-01-11T17:16:56+00:00 deadline (deadline@undisclosed.example.com) https://www.limulus-computing.com/Limulus-Manual/doku.php?image=wiki%3Aambari-all-stopped.png&ns=wiki&rev=1610385416&tab_details=history&media_do=diff&do=media <img src="https://www.limulus-computing.com/Limulus-Manual/lib/exe/fetch.php?w=500&amp;h=500&amp;tok=ac477a&amp;media=wiki:ambari-all-stopped.png" alt="ambari-all-stopped.png" loading="lazy" width="500" height="500" /> text/html 2021-01-11T17:16:56+00:00 deadline (deadline@undisclosed.example.com) 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