I used this: # lctl get_param printk
lnet.printk=warning error emerg console # lctl set_param printk=+neterror (debug) # lctl set_param printk=-neterror Take a look at "Diagnostic and Debugging Tools" chapter at lustre manual. # lctl debug_list subs Subsystems: all_subs, undefined, mdc, mds, osc, ost, class, log, llite, rpc, mgmt, lnet, lnd, pinger, filter, echo, ldlm, lov, lquota, osd, lfsck, lmv, sec, gss, mgc, mgs, fid, fld # lctl debug_list types Types: all_types, trace, inode, super, ext2, malloc, cache, info, ioctl, neterror, net, warning, buffs, other, dentry, nettrace, page, dlmtrace, error, emerg, ha, rpctrace, vfstrace, reada, mmap, config, console, quota, sec, lfsck, hsm You may take a look at neterror, net. The list of parameters (it is long, running on oss): # lctl list_param -R | less # lctl list_param -R | wc -l error: list_param: /proc/fs/lustre/llite/*: Found no match error: list_param: /proc/fs/lustre/qmt/*: Found no match 15761 Alex. On Aug 1, 2016, at 11:28 AM, Thomas Roth <[email protected]> wrote: > Hi all, > > we are suffering from "temporarily unavailable" OSTs, where "temporarily" is > a slight understatement, should read "permanently". > > Evicting the client on the OSS manually or deactivating+activating the OSTs > in question works without problems. > > However, the clients are never evicted on Lustre's own. Obviously, the > communication between client and OST is not dead entirely. > > > Is there a way to read out the communication between such an osc - obdfilter > pair? As the network people do with wireshark et al.? > > Cheers, > Thomas > > -- > -------------------------------------------------------------------- > Thomas Roth > Department: Informationstechnologie > Location: SB3 1.250 > Phone: +49-6159-71 1453 Fax: +49-6159-71 2986 > > GSI Helmholtzzentrum für Schwerionenforschung GmbH > Planckstraße 1 > 64291 Darmstadt > www.gsi.de > > Gesellschaft mit beschränkter Haftung > Sitz der Gesellschaft: Darmstadt > Handelsregister: Amtsgericht Darmstadt, HRB 1528 > > Geschäftsführung: Ursula Weyrich > Professor Dr. Karlheinz Langanke > Jörg Blaurock > > Vorsitzende des Aufsichtsrates: St Dr. Georg Schütte > Stellvertreter: Ministerialdirigent Dr. Rolf Bernhardt > > _______________________________________________ > lustre-discuss mailing list > [email protected] > http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org _______________________________________________ lustre-discuss mailing list [email protected] http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org
