o2hbmonitor(8)

📦
version 1.8.9 · 3 versions
, in fedora 44, ubuntu resolute, ubuntu stonking

💖 o2hbmonitor(8) — the OCFS2 manual page, but make it make sense 💖

okay so bestie, welcome to o2hbmonitor, straight out of the OCFS2 Manual Pages. she's an 8th-section system admin girly and she's here to keep an eye on your cluster's heartbeat. let's get into it 🫶

✨ NAME ✨

o2hbmonitor — monitors disk heartbeat in the O2CB cluster stack 👀💓

✨ SYNOPSIS ✨

o2hbmonitor [-w percent] [-ivV]

✨ DESCRIPTION ✨

o2hbmonitor is a utility whose whole personality is monitoring the disk heartbeat in the o2cb cluster stack. she tracks the time elapsed since the last heartbeat and logs messages once it exceeds the warn threshold. the way she just watches and waits… ⏱️✨

by default she runs as a daemon and logs messages to the system logger. she can be started at any time and stopped using kill(1). and ngl, she does not affect the functioning of the heartbeat thread — she's a spectator, not a main character, and that's the vibe. 🧚

she is typically automatically started during cluster online and stopped during cluster offline by the o2cb init script. so like, she's usually just out there doing her thing without you even asking. iconic behavior honestly 👑

⚠️ this utility expects the debugfs file system to be mounted at /sys/kernel/debug. no debugfs at that path = no vibes. 💀

✨ OPTIONS ✨

  • -w percent — warn threshold percent. it is the percentage of the idle threshold. it defaults to 50%. 📊
  • -i — interactive mode. she works as a daemon by default, so this flips her into interactive mode instead. this mode is typically only used for debugging. 🐛🔍
  • -v — verbose mode. she logs messages only to the system logger by default; in this mode she also logs the messages to stdout. double the yapping, double the love 💬
  • -V — displays version. just a lil flex 🎀

✨ NOTES ✨

this utility works with Linux kernel 2.6.37 and later. periodt. 📌

✨ SEE ALSO ✨

✨ AUTHORS ✨

Oracle Corporation 👑

Copyright © 2010, 2012 Oracle. All rights reserved. 💜

and that's the whole page, bestie!! this one's Version 1.8.9, dated January 2012, and yeah she's been serving cluster heartbeat realness since way before you were on the internet. 🌸 slay, monitor, slay 💅✨

📦 where this page comes from