cgspace-notes/content/posts/2018-08.md

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---
title: "August, 2018"
date: 2018-08-01T11:52:54+03:00
author: "Alan Orth"
tags: ["Notes"]
---
## 2018-08-01
- DSpace Test had crashed at some point yesterday morning and I see the following in `dmesg`:
```
[Tue Jul 31 00:00:41 2018] Out of memory: Kill process 1394 (java) score 668 or sacrifice child
[Tue Jul 31 00:00:41 2018] Killed process 1394 (java) total-vm:15601860kB, anon-rss:5355528kB, file-rss:0kB, shmem-rss:0kB
[Tue Jul 31 00:00:41 2018] oom_reaper: reaped process 1394 (java), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB
```
- Judging from the time of the crash it was probably related to the Discovery indexing that starts at midnight
- From the DSpace log I see that eventually Solr stopped responding, so I guess the `java` process that was OOM killed above was Tomcat's
- I'm not sure why Tomcat didn't crash with an OutOfMemoryError...
- Anyways, perhaps I should increase the JVM heap from 5120m to 6144m like we did a few months ago when we tried to run the whole CGSpace Solr core
- The server only has 8GB of RAM so we'll eventually need to upgrade to a larger one because we'll start starving the OS, PostgreSQL, and command line batch processes
- I ran all system updates on DSpace Test and rebooted it
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