Update notes for 2018-03-21

2025-01-27 05:49:12 +01:00 · 2018-03-21 18:11:22 +02:00
parent 50725d412f
commit 261a32d353
3 changed files with 105 additions and 8 deletions
--- a/content/posts/2018-03.md
+++ b/content/posts/2018-03.md
@ -370,3 +370,48 @@ COPY 56156
 ```

 - Afterwards we'll want to do some batch tagging of ORCID identifiers to these names
+
+## 2018-03-20
+
+- CGSpace crashed again this afternoon, I'm not sure of the cause but there are a lot of SQL errors in the DSpace log:
+
+```
+2018-03-21 15:11:08,166 ERROR org.dspace.storage.rdbms.DatabaseManager @ SQL QueryTable Error - 
+java.sql.SQLException: Connection has already been closed.
+```
+
+- I have no idea why so many connections were abandoned this afternoon:
+
+```
+# grep 'Mar 21, 2018' /var/log/tomcat7/catalina.out | grep -c 'org.apache.tomcat.jdbc.pool.ConnectionPool abandon'
+268
+```
+
+- DSpace Test crashed again due to Java heap space, this is from the DSpace log:
+
+```
+2018-03-21 15:18:48,149 ERROR org.dspace.app.xmlui.cocoon.DSpaceCocoonServletFilter @ Serious Error Occurred Processing Request!
+org.springframework.web.util.NestedServletException: Handler processing failed; nested exception is java.lang.OutOfMemoryError: Java heap space
+```
+
+- And this is from the Tomcat Catalina log:
+
+```
+Mar 21, 2018 11:20:00 AM org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor run
+SEVERE: Unexpected death of background thread ContainerBackgroundProcessor[StandardEngine[Catalina]]
+java.lang.OutOfMemoryError: Java heap space
+```
+
+- But there are tons of heap space errors on DSpace Test actually:
+
+```
+# grep -c 'java.lang.OutOfMemoryError: Java heap space' /var/log/tomcat7/catalina.out
+319
+```
+
+- I guess we need to give it more RAM because it now has CGSpace's large Solr core
+- I will increase the memory from 3072m to 4096m
+- Update [Ansible playbooks](https://github.com/ilri/rmg-ansible-public) to use [PostgreSQL JBDC driver](https://jdbc.postgresql.org/) 42.2.2
+- Deploy the new JDBC driver on DSpace Test
+- I'm also curious to see how long the `dspace index-discovery -b` takes on DSpace Test where the DSpace installation directory is on one of Linode's new block storage volumes
+- I should also check the raw read speed with `hdparm -tT /dev/sdc`