[MESOS-9935] The agent crashes after the disk du isolator supporting rootfs checks.

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Fix Version/s: 1.9.0
• Component/s: containerization
• Labels: containerization
• Target Version/s: 1.9.0
• Sprint: Containerization: RI-17 52
• Story Points: 2
• Assignee: James Peach
• Reporter: Gilbert Song
• Created: 12/Aug/19 21:23
• Updated: 14/Aug/19 05:58
• Resolved: 14/Aug/19 05:58

Description

This issue was broken by this patch:
https://github.com/apache/mesos/commit/8ba0682521c6051b42f33b3dd96a37f4d46a290d#diff-33089e53bdf9f646cdb9317c212eda02

A task can be launched without disk resource. However, after this patch, if the disk resource does not exist, the agent crashes - because the info->paths only add an entry 'path' when there is a quota and the quota comes from the disk resource.

Aug 09 14:54:00 ip-172-12-2-196.us-west-2.compute.internal mesos-agent[15492]: F0809 14:54:00.017730 15498 process.cpp:3057] Aborting libprocess: 'posix-disk-isolator(1)@172.12.2.196:5051' threw exception: _Map_base::at
Aug 09 14:54:00 ip-172-12-2-196.us-west-2.compute.internal mesos-agent[15492]: *** Check failure stack trace: ***
Aug 09 14:54:00 ip-172-12-2-196.us-west-2.compute.internal mesos-agent[15492]: @     0x7f65f7d585cd  google::LogMessage::Fail()
Aug 09 14:54:00 ip-172-12-2-196.us-west-2.compute.internal mesos-agent[15492]: @     0x7f65f7d5a828  google::LogMessage::SendToLog()
Aug 09 14:54:00 ip-172-12-2-196.us-west-2.compute.internal mesos-agent[15492]: @     0x7f65f7d58163  google::LogMessage::Flush()
Aug 09 14:54:00 ip-172-12-2-196.us-west-2.compute.internal mesos-agent[15492]: @     0x7f65f7d5b169  google::LogMessageFatal::~LogMessageFatal()
Aug 09 14:54:00 ip-172-12-2-196.us-west-2.compute.internal mesos-agent[15492]: @     0x7f65f7cb8dbd  process::ProcessManager::resume()
Aug 09 14:54:00 ip-172-12-2-196.us-west-2.compute.internal mesos-agent[15492]: @     0x7f65f7cbe926  _ZNSt6thread5_ImplISt12_Bind_simpleIFZN7process14ProcessManager12init_threadsEvEUlvE_vEEE6_M_runEv
Aug 09 14:54:00 ip-172-12-2-196.us-west-2.compute.internal mesos-agent[15492]: @     0x7f65f3976070  (unknown)
Aug 09 14:54:00 ip-172-12-2-196.us-west-2.compute.internal mesos-agent[15492]: @     0x7f65f3194e25  start_thread
Aug 09 14:54:00 ip-172-12-2-196.us-west-2.compute.internal mesos-agent[15492]: @     0x7f65f2ebebad  __clone