+++
date = "2015-11-23T17:00:57+03:00"
author = "Alan Orth"
title = "November, 2015"
Tags = ["notes"]

+++
## 2015-11-22

- CGSpace went down
- Looks like DSpace exhausted its PostgreSQL connection pool
- Last week I had increased the limit from 30 to 60, which seemed to help, but now there are many more idle connections:

```
$ psql -c 'SELECT * from pg_stat_activity;' | grep idle | grep -c cgspace
78
```

- For now I have increased the limit from 60 to 90, run updates, and rebooted the server

## 2015-11-24

- CGSpace went down again
- Getting emails from uptimeRobot and uptimeButler that it's down, and Google Webmaster Tools is sending emails that there is an increase in crawl errors
- Looks like there are still a bunch of idle PostgreSQL connections:

```
$ psql -c 'SELECT * from pg_stat_activity;' | grep idle | grep -c cgspace
96
```

- For some reason the number of idle connections is very high since we upgraded to DSpace 5

## 2015-11-25

- Troubleshoot the DSpace 5 OAI breakage caused by nginx routing config
- The OAI application requests stylesheets and javascript files with the path `/oai/static/css`, which gets matched here:

```
# static assets we can load from the file system directly with nginx
location ~ /(themes|static|aspects/ReportingSuite) {
    try_files $uri @tomcat;
...
```

- The document root is relative to the xmlui app, so this gets a 404—I'm not sure why it doesn't pass to `@tomcat`
- Anyways, I can't find any URIs with path `/static`, and the more important point is to handle all the static theme assets, so we can just remove `static` from the regex for now (who cares if we can't use nginx to send Etags for OAI CSS!)
- Also, I noticed we aren't setting CSP headers on the static assets, because in nginx headers are inherited in child blocks, but if you use `add_header` in a child block it doesn't inherit the others
- We simply need to add `include extra-security.conf;` to the above location block (but research and test first)
- We should add WOFF assets to the list of things to set expires for:

```
location ~* \.(?:ico|css|js|gif|jpe?g|png|woff)$ {
```

- We should also add `aspects/Statistics` to the location block for static assets (minus `static` from above):

```
location ~ /(themes|aspects/ReportingSuite|aspects/Statistics) {
```

- Need to check `/about` on CGSpace, as it's blank on my local test server and we might need to add something there