Support Questions
Find answers, ask questions, and share your expertise
Announcements
Alert: Welcome to the Unified Cloudera Community. Former HCC members be sure to read and learn how to activate your account here.

namenode.NameNodeResourceChecker - Space available on volume '/dev/mapper/vg00-lvopt' is 0

Highlighted

namenode.NameNodeResourceChecker - Space available on volume '/dev/mapper/vg00-lvopt' is 0

New Contributor

The namenode in our Hortonworks cluster just shut down on its own last night, with the secondary namenode taking over. When investigating the issue this morning, I can't find any errors in the namenode's log before the shutdown but it does flood its log with the following warning:

	WARN  namenode.NameNodeResourceChecker (NameNodeResourceChecker.java:isResourceAvailable(89)) - Space available on volume '/dev/mapper/vg00-lvopt' is 0, which is below the configured reserved amount 104857600

Yet there seems to be plenty of space there:

	# df -h 
	Filesystem                Size  Used Avail Use% Mounted on 
	/dev/mapper/vg00-lvopt     29G  2.5G   27G   9% /opt

I figured it might be a permissions problem, since ambari is running as non-root, yet its sudoers configuration on the namenode machine is IDENTICAL to the sudoers config on the secondary namenode machine (whose logs look fine, no warning or errors there). Anyone has any ideas what's causing this and how to solve it?

Don't have an account?
Coming from Hortonworks? Activate your account here