https://jira.whamcloud.com This file is an XML representation of an issue en-us 9.4.14 940014 05-12-2023 https://jira.whamcloud.com/browse/LU-15436 Lustre <p>The "<tt>lctl get_param seq.ctl-&#42;.fldb</tt>" file stops printing lines after about 4KB is printed (OST0051 if there are two MDTs).  This appears to be a problem in the debugfs/seq_file handling in the kernel module, since <tt>lctl</tt> gets a short read on its 64KB buffer and retries the read again before stopping. </p> <p>it may be that this is using seq_file instead of debugfs and is limited to 4KB of output?</p> LU-15436

seq.ctl-*.fldb parameter file stops at 4KB of output

Task Minor Open Unresolved WC Triage Andreas Dilger Tue, 11 Jan 2022 13:55:04 +0000 Tue, 11 Jan 2022 18:21:52 +0000 0 2 <p>This sounds like a *pos issue. How large a system do you need to setup to duplicate this problem? </p> <p>I hit this at OST 0x51, so 81 OSTs and 2 MDTs. I was able to simulate a large number of OSTs (432) on a smaller test system by having the "start" function also unmount the OST and delete the OST loopback file, to avoid filling /tmp or RAM. </p> Related Development Rank 1|i02ecv: Rank (Obsolete) 9223372036854775807