Adding RBD disk with ValueError: No JSON object could be decoded about rtslib-fb HOT 9 OPEN

The rbd image addition to tcmu-runner failed.

Whats in /var/log/tcmu-runner.log and the kernel log at this time?

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And what kernel version is this with?

from rtslib-fb.

When I use targetcli to create iscsi target, everything is OK. However, I get the above error when using gwcli.

And I get following error in /var/log/tcmu-runner.log

2017-11-21 09:58:09.601 894 [WARN] timer_check_and_set_def:229 rbd/rbd.iscsi-test-16T: osd op timeout ((null)) must be larger than osd heartbeat grace (20) + interval (6)!
2017-11-21 09:58:09.601 894 [WARN] timer_check_and_set_def:248 rbd/rbd.iscsi-test-16T: Will set the osd op timeout to 31 instead!
2017-11-21 09:58:09.641 894 [ERROR] tcmu_rbd_image_open:298 rbd/rbd.iscsi-test-16T: Could not open image ha-image/osd_op_timeout=30. (Err -2)
2017-11-21 09:58:09.645 894 [ERROR] add_device:496: handler open failed for uio0

@mikechristie

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Does your version of tcmu-runner have this patch

open-iscsi/tcmu-runner@897242e

1.3.0-rc3 and newer will have it.

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Yes, I use the newest tcmu-runner-1.3.0-rc4.

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All packages are the newest release versions:
tcmu-runner-1.3.0-rc4
ceph-iscsi-config-2.3
ceph-iscsi-cli-2.5

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The image name should be iscsi-test-16T. However, there is a suffix /osd_op_timeout=30.

open-iscsi/tcmu-runner#335 (comment)
I am wondering on which versions the mismatch issue between tcmu-runner and ceph-iscsi-config/ceph-iscsi-cli will be resolved/has been resolved.
@mikechristie

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You need to use the ceph-iscsi-config from GitHub master. It has this patch:

ceph/ceph-iscsi-config@5d8396b

which 2.3 does not.

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Thanks!

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