Dear Jan,

What you sent answers my question, which is that "yes, CSIT installs the plugin 
package."

After a bunch of investigation, we discovered the root cause: when we created 
the fd.io deb/rpm packaging - under duress a year ago - a specific step wasn't 
accounted for.

All of the vpp libraries have RPATH set to match the build tree. This allows 
folks to work on vpp library code without having to build and install fresh 
Debian packages. However, when building deb/rpm packages, the RPATH setting 
needs to disappear. Otherwise, Bad Things happen.

In a normal installation, the dynamic loader ld-linux.so searches a bunch of 
nonexistent directories.

In the case of building packages on the execution host - typical for a 
developer - the searches will probably NOT fail. The ioam plugins were linked 
in a sufficiently incestuous way to produce a second instance of [at least] the 
vxlan-gpe-pop-ioam-v4 graph node. In that situation, vpp throws up its hands 
and quits.

It's simple enough to fix: executables and dynamic libraries need to have a 
brief meeting with either patchelf or chrpath.

Thanks... Dave

From: Jan Gelety -X (jgelety - PANTHEON TECHNOLOGIES at Cisco)
Sent: Monday, December 19, 2016 4:44 AM
To: Dave Barach (dbarach) <[email protected]>; [email protected]
Subject: RE: [csit-dev] FW: vxlan-gpe-pop-ioam-v4: multiply-defined by standard 
plugin build

Hello Dave,

Unfortunately the log of the corresponding vpp-csit-verify job is already 
deleted so we cannot check what happen there.

However, all Debian packages (including plugin package) built-up in the job are 
copied to VIRL (tmp directory) and installed on both DUTs:

00:13:20.552 + scp -i priv_key -o StrictHostKeyChecking=no -o 
UserKnownHostsFile=/dev/null -o BatchMode=yes -o LogLevel=error 
vpp_17.01-rc0~219-g0f2b7da~b2891_amd64.deb 
vpp-dbg_17.01-rc0~219-g0f2b7da~b2891_amd64.deb 
vpp-dev_17.01-rc0~219-g0f2b7da~b2891_amd64.deb 
vpp-dpdk-dev_17.01-rc0~219-g0f2b7da~b2891_amd64.deb 
vpp-dpdk-dkms_17.01-rc0~219-g0f2b7da~b2891_amd64.deb 
vpp-lib_17.01-rc0~219-g0f2b7da~b2891_amd64.deb 
vpp-plugins_17.01-rc0~219-g0f2b7da~b2891_amd64.deb 
vpp-python-api_17.01-rc0~219-g0f2b7da~b2891_amd64.deb 
[email protected]:/tmp/<mailto:[email protected]:/tmp/>

09:20:02.412 TRACE return STDOUT
[Command_desc] Starting 
/tmp/openvpp-testing/resources/libraries/bash/dut_setup.sh
[Command_start_exec] 'dpkg -l vpp\*'
[Command_outputs] Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name           Version                      Architecture Description
+++-==============-============================-============-=============================================
ii  vpp            17.01-rc0~219-g0f2b7da~b2891 amd64        Vector Packet 
Processing--executables
ii  vpp-dbg        17.01-rc0~219-g0f2b7da~b2891 amd64        Vector Packet 
Processing--debug symbols
ii  vpp-dev        17.01-rc0~219-g0f2b7da~b2891 amd64        Vector Packet 
Processing--development support
ii  vpp-dpdk-dev   17.01-rc0~219-g0f2b7da~b2891 amd64        Vector Packet 
Processing--development support
ii  vpp-dpdk-dkms  17.01-rc0~219-g0f2b7da~b2891 amd64        DPDK 2.1 
igb_uio_driver
ii  vpp-lib        17.01-rc0~219-g0f2b7da~b2891 amd64        Vector Packet 
Processing--runtime libraries
ii  vpp-plugins    17.01-rc0~219-g0f2b7da~b2891 amd64        Vector Packet 
Processing--runtime plugins
ii  vpp-python-api 17.01-rc0~219-g0f2b7da~b2891 amd64        VPP Python API 
bindings
[Command_done_exec] 'dpkg -l vpp\*'

Regards,
Jan

From: [email protected]<mailto:[email protected]> 
[mailto:[email protected]] On Behalf Of Dave Barach (dbarach)
Sent: Friday, December 16, 2016 19:18
To: [email protected]<mailto:[email protected]>
Subject: [csit-dev] FW: vxlan-gpe-pop-ioam-v4: multiply-defined by standard 
plugin build
Importance: High

Folks,

Please see below. How did https://gerrit.fd.io/r/#/c/3379/ pass csit? I'm 
guessing that we're not installing the Debian plugins package...

Vpp won't even start with all of the current ioam plugins installed.

Thanks... Dave

From: Dave Barach (dbarach)
Sent: Thursday, December 15, 2016 4:54 PM
To: vpp-internal(mailer list) 
<[email protected]<mailto:[email protected]>>
Subject: vxlan-gpe-pop-ioam-v4: multiply-defined by standard plugin build
Importance: High

Folks,

See below. Would the responsible party or parties please sort this out and push 
a patch at their earliest convenience?

Installing the results of "make PLATFORM=vpp TAG=vpp_debug install-deb" via 
"sudo dpkg -i *.deb" yields a trivial vpp failure-to-start:

# /usr/bin/vpp unix interactive
vlib_plugin_early_init:213: plugin path /usr/lib/vpp_plugins
load_one_plugin:92: Loaded plugin: /usr/lib/vpp_plugins/ioam_e2e_plugin.so
load_one_plugin:92: Loaded plugin: /usr/lib/vpp_plugins/snat_plugin.so
load_one_plugin:92: Loaded plugin: /usr/lib/vpp_plugins/libioam_trace_plugin.so
load_one_plugin:92: Loaded plugin: /usr/lib/vpp_plugins/ioam_pot_plugin.so
load_one_plugin:92: Loaded plugin: /usr/lib/vpp_plugins/ila_plugin.so
load_one_plugin:92: Loaded plugin: /usr/lib/vpp_plugins/ioam_export_plugin.so
load_one_plugin:92: Loaded plugin: /usr/lib/vpp_plugins/lb_plugin.so
load_one_plugin:92: Loaded plugin: 
/usr/lib/vpp_plugins/libvxlan_gpe_ioam_export_plugin.so
load_one_plugin:92: Loaded plugin: 
/usr/lib/vpp_plugins/libioam_vxlan_gpe_plugin.so
load_one_plugin:92: Loaded plugin: /usr/lib/vpp_plugins/acl_plugin.so
load_one_plugin:92: Loaded plugin: /usr/lib/vpp_plugins/libsixrd_plugin.so
0: register_node:300: more than one node named `vxlan-gpe-pop-ioam-v4'
Aborted (core dumped)

Thanks... Dave

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