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-12396 Lustre <p>On RHEL 8.0 client, the output of "lfs df" is treated as binary data:</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre># lfs df | grep summary Binary file (standard input) matches </pre> </div></div> <p>The above issue caused many tests failed.</p> <p>In Lustre test scripts, we can use "grep -a" to resolve the issue:</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>-a, --text Process a binary file as if it were text; this is equivalent to the --binary-files=text option. </pre> </div></div> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre># lfs df | grep -a summary filesystem_summary: 13528032 76072 12685192 1% /mnt/lustre </pre> </div></div> Lustre client distro: RHEL 8.0 LU-12396

lfs df output is treated as binary data on RHEL 8.0 client

Bug Minor Resolved Fixed Yang Sheng Jian Yu Thu, 6 Jun 2019 06:24:52 +0000 Tue, 26 Nov 2019 16:20:37 +0000 Mon, 17 Jun 2019 00:29:35 +0000 Lustre 2.13.0 Lustre 2.12.3 0 7 <p>Jian, can you please attach the output from "<tt>lfs df | od -Ax -a -tx1</tt>" so we can see if there are any non-ASCII characters in the output. The only non-printable character should be "<tt>0a</tt>" ("<tt>\n</tt>").</p> <p>Sure, Andreas. Here is the output:</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>[root@vm8 tests]# lfs df | od -Ax -a -tx1 000000 U U I D sp sp sp sp sp sp sp sp sp sp sp sp 55 55 49 44 20 20 20 20 20 20 20 20 20 20 20 20 000010 sp sp sp sp sp sp sp 1 K - b l o c k s 20 20 20 20 20 20 20 31 4b 2d 62 6c 6f 63 6b 73 000020 sp sp sp sp sp sp sp sp U s e d sp sp sp A 20 20 20 20 20 20 20 20 55 73 65 64 20 20 20 41 000030 v a i l a b l e sp U s e % sp M o 76 61 69 6c 61 62 6c 65 20 55 73 65 25 20 4d 6f 000040 u n t e d sp o n nl l u s t r e - 75 6e 74 65 64 20 6f 6e 0a 6c 75 73 74 72 65 2d 000050 M D T 0 0 0 0 _ U U I D sp sp sp sp 4d 44 54 30 30 30 30 5f 55 55 49 44 20 20 20 20 000060 sp sp 1 1 6 5 9 0 0 sp sp sp sp sp sp sp 20 20 31 31 36 35 39 30 30 20 20 20 20 20 20 20 000070 sp 7 5 9 6 sp sp sp sp sp 1 0 5 5 1 0 20 37 35 39 36 20 20 20 20 20 31 30 35 35 31 30 000080 8 sp sp sp 1 % sp / m n t / l u s t 38 20 20 20 31 25 20 2f 6d 6e 74 2f 6c 75 73 74 000090 r e [ M D T : 0 ] sp nul nl l u s t 72 65 5b 4d 44 54 3a 30 5d 20 00 0a 6c 75 73 74 0000a0 r e - O S T 0 0 0 0 _ U U I D sp 72 65 2d 4f 53 54 30 30 30 30 5f 55 55 49 44 20 0000b0 sp sp sp sp sp 6 7 6 4 0 1 6 sp sp sp sp 20 20 20 20 20 36 37 36 34 30 31 36 20 20 20 20 0000c0 sp sp sp 3 8 0 3 6 sp sp sp sp sp 6 3 4 20 20 20 33 38 30 33 36 20 20 20 20 20 36 33 34 0000d0 2 5 9 6 sp sp sp 1 % sp / m n t / l 32 35 39 36 20 20 20 31 25 20 2f 6d 6e 74 2f 6c 0000e0 u s t r e [ O S T : 0 ] sp nul nl l 75 73 74 72 65 5b 4f 53 54 3a 30 5d 20 00 0a 6c 0000f0 u s t r e - O S T 0 0 0 1 _ U U 75 73 74 72 65 2d 4f 53 54 30 30 30 31 5f 55 55 000100 I D sp sp sp sp sp sp 6 7 6 4 0 1 6 sp 49 44 20 20 20 20 20 20 36 37 36 34 30 31 36 20 000110 sp sp sp sp sp sp 3 8 0 3 6 sp sp sp sp sp 20 20 20 20 20 20 33 38 30 33 36 20 20 20 20 20 000120 6 3 4 2 5 9 6 sp sp sp 1 % sp / m n 36 33 34 32 35 39 36 20 20 20 31 25 20 2f 6d 6e 000130 t / l u s t r e [ O S T : 1 ] sp 74 2f 6c 75 73 74 72 65 5b 4f 53 54 3a 31 5d 20 000140 nul nl nl f i l e s y s t e m _ s u 00 0a 0a 66 69 6c 65 73 79 73 74 65 6d 5f 73 75 000150 m m a r y : sp sp sp sp sp 1 3 5 2 8 6d 6d 61 72 79 3a 20 20 20 20 20 31 33 35 32 38 000160 0 3 2 sp sp sp sp sp sp sp 7 6 0 7 2 sp 30 33 32 20 20 20 20 20 20 20 37 36 30 37 32 20 000170 sp sp sp 1 2 6 8 5 1 9 2 sp sp sp 1 % 20 20 20 31 32 36 38 35 31 39 32 20 20 20 31 25 000180 sp / m n t / l u s t r e nl nl 20 2f 6d 6e 74 2f 6c 75 73 74 72 65 0a 0a 00018e </pre> </div></div> <p>There are 7 "0a".</p> <p>There appears to be a NUL character in the output:</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>000130 t / l u s t r e [ O S T : 1 ] sp 74 2f 6c 75 73 74 72 65 5b 4f 53 54 3a 31 5d 20 000140 nul nl nl f i l e s y s t e m _ s u 00 0a 0a 66 69 6c 65 73 79 73 74 65 6d 5f 73 75 </pre> </div></div> <p>Yang Sheng (ys@whamcloud.com) uploaded a new patch: <a href="https://review.whamcloud.com/35137" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/35137</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-12396" title="lfs df output is treated as binary data on RHEL 8.0 client" class="issue-link" data-issue-key="LU-12396"><del>LU-12396</del></a> utils: lfs should not output 'nul' char<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: fdfbeeec670e60282300cd591baa4311fe4b885c</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/35137/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/35137/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-12396" title="lfs df output is treated as binary data on RHEL 8.0 client" class="issue-link" data-issue-key="LU-12396"><del>LU-12396</del></a> utils: lfs should not output 'nul' char<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: f232d906f755c3ea823c5cf17b7729a6a3bd8fe5</p> <p>The b2_12 backport of this patch was merged into <a href="https://review.whamcloud.com/35226" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/35226</a> so that it does not fail testing.</p> <p>The patch containing the fix is still in flight ATM - let's hold off marking the fix version until it has landed to b2_12</p> Related LU-12269 LU-11963 Development Rank 1|i00hpb: Rank (Obsolete) 9223372036854775807 Severity