[MESOS-8504] Value for mesos attributes is not optional

• Type: Bug
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: 1.4.1
• Component/s: agent, documentation
• Labels: agent attributes documentation mesos

Environment

CentOS Linux release 7.2.1511 (Core)

mesos-1.4.1-2.0.1.x86_64

• Assignee: Unassigned
• Reporter: Pavel Timofeev
• Created: 29/Jan/18 15:28
• Updated: 01/Feb/18 07:50

Description

Mesos documentation describes attributes as following

Attributes are key-value pairs (where value is optional) ...

There is no way to start an agent with attribute w/o value, i. e. with key set only.

Neither with

--attributes=bla

nor

--attributes=bla:

 

You'll get the following errors

attributes.cpp:145] Invalid attribute key:value pair 'bla'

or

attributes.cpp:145] Invalid attribute key:value pair 'bla:'

accordingly

Agent code should allow setting attributes without value according to documentation. This should be fixed in both mesos-agent binary and mesos-init-wrapper script

If documentation is wrong the web page describing roles has to be fixed.