Hi,
We use tgtd with >100 targets and from time to time we see failures of
tgt-admin --update <iqn>
with iqn predefined in a conf file. The reported failures are
# Adding target: test_aaa
tgtadm -C 0 --lld iscsi --op new --mode target --tid 401 -T test_aaa
tgtadm: this target already exists
Command:
tgtadm -C 0 --lld iscsi --op new --mode target --tid 401 -T test_aaa
exited with code: 22.
We discovered that calculation of 'tid' value happens in tgt-admin and
it seems like if tgtd is under a relatively high load
sub process_targets {
...
my @show_target = `tgtadm -C $control_port --op show --mode target`;
doesn't actually get the full list of targets, and then later on
calculated $next_tid actually clashes with already existing target id.
Is it know? Is it tgtadm<->mgmt IPC problem, or tgtd privileges iSCSI
conns over mgmt tasks and thus, returning what it could withing a
minimal time slot?
Thank you in advance for your clarifications.
Regards,
Konstantin
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