[Kernel-packages] [Bug 1655842] Re: "Out of memory" errors after upgrade to 4.4.0-59

2017-08-22 Thread Jake Billo
With the sysctl settings provided by Pete (vm.min_free_kbytes = 100 and vm.zone_reclaim_mode = 1), we've been running the linux-aws 4.4.0-1028.37 kernel successfully without an OOM killer invocation for about four days now. Previously we would have seen three or more occurrences of this per

[Kernel-packages] [Bug 1655842] Re: "Out of memory" errors after upgrade to 4.4.0-59

2017-08-16 Thread Jake Billo
Apologies - the file was inadvertently split by logrotate. I have concatenated the entire contents of kern.log and kern.log.1 into the attached file; these are the only kern.log files in /var/log on the system. I do have to redact the hostname in question, but it is a simple substitution of

[Kernel-packages] [Bug 1655842] Re: "Out of memory" errors after upgrade to 4.4.0-59

2017-08-16 Thread Jake Billo
We are also experiencing this issue running linux-aws 4.4.0-1028.37, which tracks Ubuntu kernel 4.4.0-89.112. Our use case is very similar to comment #86 (https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1655842/comments/86). In our case ElasticSearch 2.4.5 is running under Java 1.8.0_131 with