Dear Chad, thanks a lot! That is apparently the solution. The files did have the immutable attribute set:
lsattr file ----i----------- file removing it with: chattr -i file fixed the problem. I have no idea how this attribute was set, but at least now I know how to remove it. Thank you! Robert On 15.12.20 14:16, Chad DeWitt wrote: > Hi Robert, > > Just rolling dice, but is it possible that the append only attribute > is set on the files in question? > > For instance, I have the attribute set on a file named /testing/ (the > append attribute is shown by the 'a' flag): > > # lsattr testing > -----a---------- testing > > When I try to remove /testing/ with the append flag set: > > # rm testing > rm: remove regular empty file ‘testing’? y > rm: cannot remove ‘testing’: Operation not permitted > > > If that flag is set on your problematic files, the unsetting the flag > will allow you to delete them: > > # chattr -a testing > # rm testing > rm: remove regular empty file ‘testing’? y > > > BTW - You have to use lsattr to see the append flag; a normal ls will > not show it... > > Chad > > ------------------------------------------------------------ > > Chad DeWitt, CISSP | University Research Computing > > UNC Charlotte *| *Office of OneIT > > [email protected] <mailto:[email protected]> *| *https://oneit.uncc.edu > > ------------------------------------------------------------ > > > > On Tue, Dec 15, 2020 at 8:02 AM Robert Redl <[email protected] > <mailto:[email protected]>> wrote: > > Dear Lustre Users, > > we have some files in the system, that are not writable anymore. > Symptoms: > > - normal rm fails: rm: cannot remove 'file': Operation not permitted. > - lfs rmfid fails without error message. The file is just not deleted. > - lfs migrate fails: file: no write permission, skipped > - all commands are executes as root on a node which is listed in > nosquash_nids. > - other files with the same permissions located in the same folder > are writable. > - the affected file are readable. Creating a copy is possible, but > deleting the original file not. > - the problem remains after running lfsck. > > We use Lustre 2.12.5 on Centos 7 with ZFS backend. > > Has anyone had such issues before? Any ideas how to delete these > files? > > Thank you! > Robert > > -- > > Dr. Robert Redl > Scientific Programmer, "Waves to Weather" (SFB/TRR165) > Meteorologisches Institut > Ludwig-Maximilians-Universität München > Theresienstr. 37, 80333 München, Germany > > [Caution: Email from External Sender. Do not click or open links > or attachments unless you know this sender.] > > > _______________________________________________ > lustre-discuss mailing list > [email protected] > <mailto:[email protected]> > http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org >
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