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<ul> |
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<ul> |
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<li><uri link="#doc_chap6_sect1">ReiserFS and filesystem corruption issues -- how to fix'em, etc</uri></li> |
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<li><uri link="#doc_chap6_sect1">ReiserFS and filesystem corruption issues -- how to fix'em, etc</uri></li> |
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<li><uri link="#doc_chap6_sect2">How to I view the timestamps in /var/log/syslog.d, etc. on a pre-1.0_rc5 Gentoo system? </uri></li> |
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<li><uri link="#doc_chap6_sect2">How to I view the timestamps in /var/log/syslog.d, etc. on a pre-1.0_rc5 Gentoo system? </uri></li> |
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<li><uri link="#doc_chap6_sect3">Metalogd doesn't log in real time!</uri></li> |
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</ul> |
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</body> |
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</body> |
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</section> |
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</body> |
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</body> |
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<section> |
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<title>Metalogd doesn't log in real time!</title> |
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<body> |
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<p> |
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Metalog flushes output to the disk in blocks, so messages aren't immediately |
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recorded into the system logs. If you are trying to debug a daemon, this |
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performance-enhancing behavior is less than helpful. When your Gentoo Linux |
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system is up and running, you can send metalog a USR1 signal to temporarily |
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turn off this message buffering (meaning that <c>tail -f |
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<path>/var/log/everything/current</path></c> will now work in real time, as |
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expected) and a USR2 signal to turn buffering back on again. If you want to |
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disable buffering permanently, you can change METALOG_OPTS="-B" to |
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METALOG_OPTS="-B -s" in <path>/etc/conf.d/metalog</path>. |
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</p> |
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<pre caption="Turning metalog buffering on/off"> |
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<codenote>To turn the buffering off:</codenote> |
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# <i>killall -USR1 metalog</i> |
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<codenote>To turn the buffering back on:</codenote> |
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# <i>killall -USR2 metalog</i> |
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</pre> |
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</body> |
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</section> |
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</chapter> |
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<chapter> |
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<chapter> |
