[LU-7280] Interop b2_5_fe<->2.7.60 : sanityn test_78: Expected set_param to return 0|ENODEV|EAGAIN

• Status: Resolved
• Project: Lustre
• Affects Version/s: Lustre 2.8.0
• Type: Bug
• Priority: Minor
• Reporter: Maloo
• Assignee: WC Triage
• Resolution: Won't Fix

Environment

Server: 2.5.5, b2_5_fe/62
Client: 2.7.60, build# 3203, RHEL 7

• Severity: 3

Description

This issue was created by maloo for Saurabh Tandan <[e-mail]>

This issue relates to the following test suite run: https://testing.hpdd.intel.com/test_sets/e0fea9b2-6b53-11e5-b85e-5254006e85c2.

The sub-test test_78 failed with the following error:

Expected set_param to return 0|ENODEV|EAGAIN

onyx-41vm8: error: set_param: setting /proc/fs/lustre/ost/OSS/ost_io/nrs_orr_quantum=1: No such device
ost.OSS.ost_io.nrs_orr_quantum=1
 sanityn test_78: @@@@@@ FAIL: Expected set_param to return 0|ENODEV|EAGAIN 

Comments

[Vinayak (Inactive)]

Error: ENODEV : No such device is handled in https://jira.hpdd.intel.com/browse/LU-7072

but $? is 1 in case of any failure. So $rc -eq 0 -o $rc -eq 19 -o $rc -eq 11 is becoming meaning less check.

test_78() { #LU-6673
        local rc

        for i in $(seq 1 $OSTCOUNT)
        do
                do_facet ost"$i" lctl set_param \
                        ost.OSS.ost_io.nrs_policies="orr" &
                do_facet ost"$i" lctl set_param \
                        ost.OSS.*.nrs_orr_quantum=1
                rc=$?
                echo "***************** RC = $rc ******* "
                # Valid return codes are:
                # 0: Tuning succeeded
                # ENODEV: Policy is still stopped
                # EAGAIN: Policy is being initialized
                [ $rc -eq 0 -o $rc -eq 19 -o $rc -eq 11 ] ||
                        error "Expected set_param to return 0|ENODEV|EAGAIN"
        done

....

[Vinayak (Inactive)]

lctl set_param does not return proper error number (returns 0 in case of success of -1 in case of failure) because of which

[ $rc -eq 0 -o $rc -eq 19 -o $rc -eq 11 ] ||
                        error "Expected set_param to return 0|ENODEV|EAGAIN"

fails in case of error.

The solution for this issue is http://review.whamcloud.com/#/c/9545/

[Saurabh Tandan (Inactive)]

Another instance found for interop : 2.5.5 Server/EL6.7 Client
Server: 2.5.5, b2_5_fe/62
Client: master, build# 3303, RHEL 6.7
https://testing.hpdd.intel.com/test_sets/03b07848-bb25-11e5-861c-5254006e85c2

[Saurabh Tandan (Inactive)]

Another instance found for interop tag 2.7.66 - 2.5.5 Server/EL7 Client, build# 3316
https://testing.hpdd.intel.com/test_sets/0dde9b9c-ccc8-11e5-b80c-5254006e85c2