EMC-POC: Nexus plugin: replay code logs warning message, "GET call failed to return Nexus type"

Bug #1466164 reported by Danny Choi
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
networking-cisco
Fix Released
Undecided
Carol Bouchard
Kilo
Fix Committed
Undecided
Carol Bouchard
Liberty
Fix Released
Undecided
Carol Bouchard

Bug Description

 Replay code logs warning message in neutron/server.log: "GET call failed to return Nexus type"

2015-06-17 13:11:48.513 7442 DEBUG neutron.plugins.ml2.drivers.cisco.nexus.mech_cisco_nexus [-] check_connections() switch 10.86.7.59 state 1 check_connections /usr/lib/python2.7/site-packages/neutron/plugins/ml2/drivers/cisco/nexus/mech_cisco_nexus.py:121
2015-06-17 13:11:48.546 7442 WARNING neutron.plugins.ml2.drivers.cisco.nexus.nexus_network_driver [-] GET call failed to return Nexus type

Switch type is 9372PX

===================================================================
There is no issue with 9396PX:

2015-06-17 13:11:48.546 7442 DEBUG neutron.plugins.ml2.drivers.cisco.nexus.mech_cisco_nexus [-] check_connections() switch 10.86.1.128 state 1 check_connections /usr/lib/python2.7/site-packages/neutron/plugins/ml2/drivers/cisco/nexus/mech_cisco_nexus.py:121
2015-06-17 13:11:48.659 7442 DEBUG neutron.plugins.ml2.drivers.cisco.nexus.nexus_network_driver [-] GET call returned Nexus type 9 get_nexus_type /usr/lib/python2.7/site-packages/neutron/plugins/ml2/drivers/cisco/nexus/nexus_network_driver.py:229

Revision history for this message
Danny Choi (dannchoi) wrote :

It does not affect replay code functionality.

Revision history for this message
Danny Choi (dannchoi) wrote :

Also saw this ERROR message:

2015-06-16 20:19:43.790 7442 ERROR neutron.plugins.ml2.drivers.cisco.nexus.mech_cisco_nexus [-] Received invalid Nexus type -1 for switch ip 10.86.7.59

Changed in networking-cisco:
assignee: nobody → Carol Bouchard (caboucha)
status: New → In Progress
Revision history for this message
OpenStack Infra (hudson-openstack) wrote : Fix merged to networking-cisco (master)

Reviewed: https://review.openstack.org/204124
Committed: https://git.openstack.org/cgit/openstack/networking-cisco/commit/?id=2a43c81b28bd99f13bb4eaeffc36a2b91b249e34
Submitter: Jenkins
Branch: master

commit 2a43c81b28bd99f13bb4eaeffc36a2b91b249e34
Author: Carol Bouchard <email address hidden>
Date: Tue Jul 21 11:02:31 2015 -0400

    Call to get nexus type for Nexus 9372PX fails

    Started seeing the error "Get call failed to return Nexus type" when
    setting up network with 2 switches. There was only one Nexus switch
    in which error appeared on and it was the Nexus9372PX. It seems
    the XML output from EXEC_GET_INVENTORY_SNIPPET from both these
    N9K were not consistent. The word Chassis was capitalized in
    9396 while not in 9372.

    Change-Id: Ib0f44fe59229e0b2f945addcbcd624ed40e68340
    Closes-bug: #1466164

Changed in networking-cisco:
status: In Progress → Fix Committed
Revision history for this message
OpenStack Infra (hudson-openstack) wrote : Fix proposed to networking-cisco (stable/kilo)

Fix proposed to branch: stable/kilo
Review: https://review.openstack.org/206007

Revision history for this message
OpenStack Infra (hudson-openstack) wrote :

Fix proposed to branch: stable/kilo
Review: https://review.openstack.org/206167

Revision history for this message
OpenStack Infra (hudson-openstack) wrote : Change abandoned on networking-cisco (stable/kilo)

Change abandoned by Carol Bouchard (<email address hidden>) on branch: stable/kilo
Review: https://review.openstack.org/206007
Reason: Use 'git cherry-pick -x' method instead ref: https://review.openstack.org/#/c/206167/

Revision history for this message
OpenStack Infra (hudson-openstack) wrote : Fix merged to networking-cisco (stable/kilo)

Reviewed: https://review.openstack.org/206167
Committed: https://git.openstack.org/cgit/openstack/networking-cisco/commit/?id=97720feb4ef4d75fa190a23ac10038d29582b001
Submitter: Jenkins
Branch: stable/kilo

commit 97720feb4ef4d75fa190a23ac10038d29582b001
Author: Carol Bouchard <email address hidden>
Date: Tue Jul 21 11:02:31 2015 -0400

    Call to get nexus type for Nexus 9372PX fails

    Started seeing the error "Get call failed to return Nexus type" when
    setting up network with 2 switches. There was only one Nexus switch
    in which error appeared on and it was the Nexus9372PX. It seems
    the XML output from EXEC_GET_INVENTORY_SNIPPET from both these
    N9K were not consistent. The word Chassis was capitalized in
    9396 while not in 9372.

    Change-Id: Ib0f44fe59229e0b2f945addcbcd624ed40e68340
    Closes-bug: #1466164
    (cherry picked from commit 2a43c81b28bd99f13bb4eaeffc36a2b91b249e34)

tags: added: in-stable-kilo
Sam Betts (sambetts)
Changed in networking-cisco:
milestone: none → 1.1.0
Revision history for this message
OpenStack Infra (hudson-openstack) wrote : Fix proposed to networking-cisco (master)

Fix proposed to branch: master
Review: https://review.openstack.org/246547

Revision history for this message
OpenStack Infra (hudson-openstack) wrote : Fix merged to networking-cisco (master)
Download full text (23.9 KiB)

Reviewed: https://review.openstack.org/246547
Committed: https://git.openstack.org/cgit/openstack/networking-cisco/commit/?id=7b1eb2b6d5e55563c084f60e44adc1d32706eb17
Submitter: Jenkins
Branch: master

commit d9b9a6421d7ff92e920ed21b01ebc7bf49e38bd6
Author: Sam Betts <email address hidden>
Date: Tue Sep 29 09:18:10 2015 +0100

    Set default branch for stable/kilo

    Change-Id: I31f51ff60f95639f459839f4c7d929d5ec7c458d

commit f08fb31f20c2d8cc1e6b71784cdfd9604895e16d
Author: Rich Curran <email address hidden>
Date: Thu Sep 3 13:23:52 2015 -0400

    ML2 cisco_nexus MD: VLAN not created on switch

    As described in DE588,
    "With neutron multiworkers configured, there is a potential race condition
    issue where some of the VLANs will not be configured on one or more N9k
    switches.

    /etc/neutron/neutron.conf
    -------------------------
    api_workers=3
    rpc_workers=3"

    Fix is to allow the vlan create command to be sent down to a switch
    under most event conditions. Long term fix will be to introduce a new
    column in the port binding DB table that indicates the true state of the
    entry/row.

    Closes-Bug: #1491940
    Change-Id: If1da1fcf16a450c1a4107da9970b18fc64936896
    (cherry picked from commit 0e48a16e77fc5ec5fd485a85f97f3650126fb6fe)

commit d400749e43e9d5a1fc92683b40159afce81edc95
Author: Carol Bouchard <email address hidden>
Date: Thu Sep 3 15:19:48 2015 -0400

    Create knob to prevent caching ssh connection

    Create a new initialization knob named never_cache_ssh_connection.
    This boolean is False by default allowing multiple ssh connections
    to the Nexus switch to be cached as it behaves today. When there
    are multiple neutron processes/controllers and/or non-neutron ssh(xml)
    connections, this is an issue since processes hold onto a connection
    while the Nexus devices supports a maximum of 8 sessions. As a result,
    further ssh connections will fail. In this case, the boolean should be
    set to True causing each connection to be closed when a neutron event
    is complete.

    Change-Id: I61ec303856b757dd8d9d43110fec8e7844ab7c6d
    Closes-bug: #1491108
    (cherry picked from commit 23551a4198c61e2e25a6382f27d47b0665f054b8)

commit 0050ea7f1fb3c22214d7ca49cfe641da86123e2c
Author: Carol Bouchard <email address hidden>
Date: Wed Sep 2 11:10:42 2015 -0400

    Bubble up exceptions when Nexus replay enabled

    There are several changes made surrounding this bug.

    1) When replay is enabled, we should bubble exceptions
       for received port create/update/delete post_commit
       transactions. This was suppressed earlier by
       1422738.

    2) When an exception is encountered during a
       post_commit transaction, the driver will no longer
       mark the switch state to inactive to force a replay.
       This is no longer needed since 1481856 was introduced.
       So from this point on, only the replay thread will
       determine the state of the connection to the switch.

    3) In addition to accommodating 1 & 2 above, more detail
       data verification was added to the test code.

    Change-Id: I97...

Changed in networking-cisco:
status: Fix Committed → Fix Released
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