[MAPREDUCE-2386] TT jetty server stuck in tight loop around epoll_wait

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 0.23.0, 1.0.3
• Component/s: tasktracker

Environment

RHEL 6.0 "Santiago"

• Assignee: Unassigned
• Reporter: Todd Lipcon
• Created: 16/Mar/11 04:55
• Updated: 07/Jul/14 09:39

Description

In some load testing, I got a TaskTracker into a state where its Jetty server is in a tight loop calling epoll_wait, which is returning EINVAL:

[pid 19573] epoll_wait(157, 40829000, 8192, 0) = -1 EINVAL (Invalid argument)

It's not responding to any HTTP connections - connections are accepted and then just hang.

Issue Links

• is duplicated by: MAPREDUCE-2530 TaskTracker jetty stuck in a tight loop
• is duplicated by: MAPREDUCE-5949 Tasktracker's java threads hunging
• is related to: MAPREDUCE-1950 Jetty Acceptor can stuck TaskTracker forever
• is related to: MAPREDUCE-2530 TaskTracker jetty stuck in a tight loop
• relates to: MAPREDUCE-2389 Spurious EOFExceptions reading SpillRecord index files
• relates to: HADOOP-7191 BackUpNameNode is using 100% CPU and not accepting any requests.