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I would say that the changelog text output format is mainly for debugging and not really intended as a primary input format for some other changelog consumer. Instead, the changelog consumer should fetch the binary changelog records itself and process them
directly.
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<div class="">Most of the fields are fairly straight forward:</div>
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<div style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">1 01CREAT 04:24:09.779203918 2024.08.20 0x0 t=[0x2000013a1:0x1:0x0]</span></div>
<div style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> j=cp.0 ef=0xf u=0:0 nid=0@lo p=[0x200000007:0x1:0x0] testfile</span></div>
<div style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">2 01CREAT 04:26:36.351596347 2024.08.20 0x0 t=[0x2000013a1:0x2:0x0]</span></div>
<div style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> j=cp.0 ef=0xf u=0:0 nid=0@lo p=[0x200000007:0x1:0x0] testfile2</span></div>
<div style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">3 01CREAT 04:27:54.551053189 2024.08.20 0x0 t=[0x2000013a1:0x4:0x0]</span></div>
<div style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> j=cp.0 ef=0xf u=0:0 nid=0@lo p=[0x2000013a1:0x3:0x0]</span> file with spaces</div>
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<div>1) record number</div>
<div>2) record type number/name</div>
<div>3) time of update</div>
<div>4) date of update</div>
<div>5) changelog flags</div>
<div>6) t= target FID</div>
<div>7) j= jobid</div>
<div>8) ef= extra field mask</div>
<div>9) u= UID:GID</div>
<div>10) nid= Network ID of node performing update</div>
<div>11) p= parent FID</div>
<div>12) filename (until end of line)</div>
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<div class="">If you think they need more explanation, a patch to lustre/doc/lctl-changelog.1 would be welcome.</div>
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<div class="">On Aug 19, 2024, at 17:30, Michael DiDomenico via lustre-discuss <<a href="mailto:lustre-discuss@lists.lustre.org" class="">lustre-discuss@lists.lustre.org</a>> wrote:</div>
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<div class="">is there a document somewhere that describes the changelog record line<br class="">
format? the lustre manual lists the record types, but it doesnt<br class="">
define what the rest key/value pairs are for each record type. most<br class="">
of the fields are self evident, but others i'm less clear on.<br class="">
unfortunately googl'ing 'lustre changelog' doesn't help :(<br class="">
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<div>Cheers, Andreas</div>
<div>--</div>
<div>Andreas Dilger</div>
<div>Lustre Principal Architect</div>
<div>Whamcloud</div>
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