BI Aggregate Fails when Filtering or Host Assignment are set

CMK version: 2.0.0p18
OS version:Centos Linux 7 x86_64

Error message:[special_bi] Agent exited with code 1: too many values to unpack (expected 2)(!!)

Output of “cmk --debug -vvn hostname”:*

[agent] Version: 2.0.0p18, OS: linux, [special_bi] Agent exited with code 1: too many values to unpack (expected 2)(!!), execution time 18.2 sec | execution_time=18.210 user_time=0.070 system_time=0.020 children_user_time=0.250 children_system_time=0.040 cmk_time_agent=17.780 cmk_time_ds=0.050

There is more output from the debug command but it doesn’t look relevant.

This was working on 1.6 - seems to be broken on 2.0.

We have aggregation rule setup to apply the check status of an aggregation to a host. This works ok when aggregation group filtering and host assignment are not selected but fails with the above error when they are selected in the rule.

Please can you do a “cmk -D hostname” and then execute the command for the special agent manually.
There you should get the real error message from this special agent.

Running the “cmk -D hostname” command gets the following output for the special agent:

Type of agent:
  Program: /omd/sites/cmktst/share/check_mk/agents/special/agent_bi
  Program stdin:
[{'site': 'local', 'credentials': 'automation', 'filter': {'groups': ['CMK-TST']}, 'assignments': {'affected_hosts': 'affected_hosts'}}]
  Process piggyback data from /omd/sites/cmktest/tmp/check_mk/piggyback/cmkhost

Running the special agent command manually as follows returns the following error:

echo "[{'site': 'local', 'credentials': 'automation', 'filter': {'groups': ['CMK-TST']}, 'assignments': {'affected_hosts': 'affected_hosts'}}]" | /omd/sites/cmktst/share/check_mk/agents/special/agent_bi

too many values to unpack (expected 2)

If I run:

echo "[{'site': 'local', 'credentials': 'automation'}]" | /omd/sites/cmktst/share/check_mk/agents/special/agent_bi

It runs ok and returns the aggregate output for all aggregates.

It looks like passing in the parameters for the group filtering and hostname assignment no longer work with the bi special agent.