missing depedency liboping0

[PshemK]

It looks like the package (collected-core) is missing a depedency on liboping0. That results in ping plugin not loading:

# /usr/sbin/collectd -tT
lt_dlopen ("/usr/lib/collectd/ping.so") failed: file not found. The most common cause for this problem is missing dependencies. Use ldd(1) to check the dependencies of the plugin / shared object.
plugin_load: Load plugin "ping" failed with status 1.
Found a configuration for the `ping' plugin, but the plugin isn't loaded or didn't register a configuration callback.

# ldd /usr/lib/collectd/ping.so
        linux-vdso.so.1 => (0x00007ffeab82b000)
        liboping.so.0 => not found
        libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f52330f3000)
        libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f5232d2c000)
        /lib64/ld-linux-x86-64.so.2 (0x0000559918b50000)

after installation of liboping0
# ldd /usr/lib/collectd/ping.so
        linux-vdso.so.1 => (0x00007ffcfe041000)
        liboping.so.0 => /usr/lib/x86_64-linux-gnu/liboping.so.0 (0x00007fe45f005000)
        libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007fe45ecfc000)
        libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fe45e935000)
        /lib64/ld-linux-x86-64.so.2 (0x000055c4dad7f000)

details:
Description: Ubuntu 16.10
Release: 16.10

# dpkg -l | grep collectd-core
ii collectd-core 5.5.2-1 amd64 statistics collection and monitoring daemon (core system)

[Sebastian Harl (tokkee-debian)]

This is not a strict dependency and working as intended. See /usr/share/doc/collectd-core/README.Debian.plugins for more details.

[Sebastian Harl (tokkee-debian)]

Also see https://bugs.debian.org/734788 for additional background. I'd suggest to chime in there if you have further ideas.