[YARN-6510] Fix profs stat file warning caused by process names that includes parenthesis

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.8.0, 3.0.0-alpha2
• Fix Version/s: 2.9.0, 3.0.0-alpha4, 2.8.6
• Hadoop Flags: Reviewed
• Assignee: Wilfred Spiegelenburg
• Reporter: Wilfred Spiegelenburg
• Created: 21/Apr/17 18:13
• Updated: 26/Feb/20 05:29
• Resolved: 26/Apr/17 19:38

Description

Even with the fix for YARN-3344 we still have issues with the procfs format.

This is the case that is causing issues:

[user@nm1 ~]$ cat /proc/2406/stat
2406 (ib_fmr(mlx4_0)) S 2 0 0 0 -1 2149613632 0 0 0 0 166 126908 0 0 20 0 1 0 4284 0 0 18446744073709551615 0 0 0 0 0 0 0 2147483647 0 18446744073709551615 0 0 17 6 0 0 0 0 0

We do not handle the parenthesis in the name which causes the pattern matching to fail