Changes between Version 1 and Version 2 of Ticket #2000


Ignore:
Timestamp:
Apr 15, 2016, 10:48:48 AM (8 years ago)
Author:
Nicklas Nordborg
Comment:

Legend:

Unmodified
Added
Removed
Modified

  • Ticket #2000 – Description

    v1 v2  
    2323It turned out that using the annotation importer to delete the existing annotations proved to be much worse. The initial parsing and updating of items used about the same time and amount of memory as when creating items. When committing BASE need to go through relations that may point to the deleted items and either delete them as well or nullify the reference (for example, any-to-any links and inherited/cloned annotations). This consumed more and more memory and reached a point where most of the time was spent doing GC. After 1.5 hours (60 minutes GC) I gave up and killed Tomcat. I'll see what happens if Tomcat get more memory...
    2424
     25Giving Tomcat 4GB instead of 2GB memory helped. The maximum low level was near 3GB. The steps outlined in the table above took more or less the same time as when inserting annotations. An additional hour was spent checking/removing references to the deleted annotation. Total time was over 1 hour 20 minutes.