topic Re: 'Node does not exist' Errors in Alfresco Archive

'Node does not exist' Errors

ebogaard — Thu, 24 Jan 2013 08:46:36 GMT

Recently I discovered that the Alfresco-logfiles were growing rapidly. This was caused by an unstoppable stream of errors like this: 2013-01-24 09:29:13,672 ERROR [post.lookup.PostLookup] [DefaultScheduler_Worker-9] Skipping activity post 892: org.alfresco.service.cmr.repository.InvalidNodeRefExcep

Re: 'Node does not exist' Errors

mitpatoliya — Thu, 24 Jan 2013 08:53:38 GMT

Some times it happens because of corrupted indexes.
If you go for full index recovery then most of times problem gets solved.

Re: 'Node does not exist' Errors

ebogaard — Thu, 24 Jan 2013 09:06:00 GMT

Should have said that I've already deleted all solr indexes and let them rebuild. No effect whatsoever.

Update:
It appears I fixed the excessive logging of ERRORs by deleting the node mentioned in the last ERROR.
This node was found twice in alf_node, which might have been the problem.

Does anyone know how this can happen? (And how one can prevent this?)

Update2:
apparently it wasn't fixed: the list of 'Node does not exist' ERRORs returned and keeps on growing.

Re: 'Node does not exist' Errors

ebogaard — Fri, 25 Jan 2013 16:39:00 GMT

After some further research, it looks like there is something wrong in the way Alfresco 4.2c 'deletes' nodes. According to this blog: http://www.ixxus.com/blog/2011/09/alfresco-node-lifecycle/ (step 2), if a file (node) is deleted by an user, the store_id property of that node is changed from 6 to 5. When I look at the alf_node table, all nodes that give the ERROR are referred to twice in this table: once with store_id=5 once store_id=6. This doesn't seem right.
Am I right that this is wrong, or is this the correct behaviour for 4.2c?
If it's actually wrong, is this a bug and/or is there a fix for it? (As Jira is currently not available)

Update:
After posting this, Jira was back on-line. It seems that there is a very similar problem in 4.2b (and in my experciences, also in 4.2c), which is stated to be resolved in 4.2d. See: https://issues.alfresco.com/jira/browse/ALF-16739

Re: 'Node does not exist' Errors

ebogaard — Tue, 12 Feb 2013 14:27:02 GMT

After deleting several hundreds of rows from table 'alf_activity_feed', there were no more ERRORs.
Also, after several weeks of working in Alfresco 4.2x, this problem didn't show up anymore. Is this a known bug, or did something strange and unknown happen?

Re: 'Node does not exist' Errors

lista — Sun, 17 Feb 2013 23:10:02 GMT

Since you had to delete those rows, I'd say something strange definitely happened. I'd suggest raising a JIRA issue and having Alfresco guys have a look.

Re: 'Node does not exist' Errors

ebogaard — Thu, 21 Feb 2013 17:06:04 GMT

It seems that there already was a JIRA issue: https://issues.alfresco.com/jira/browse/ALF-16739
It should be fixed in 4.2d. I hope it really is, because recently the problem returned to the same instance.

Re: 'Node does not exist' Errors

phloyd — Wed, 07 Jan 2015 18:30:14 GMT

How did you know which table to look. I am seeing a similar error, but I am looking through all these tables and I don't know which one to look in.
I am not having problems with the tables you have described.

ERROR [org.alfresco.repo.activities.post.lookup.PostLookup] Skipping activity post 8084: org.alfresco.service.cmr.repository.InvalidNodeRefEx
ception: Node does not exist: workspace://SpacesStore/f18410d4-719c-4085-881f-94557ce424ee(Status[changeTxnId=e6e09cbf-2158-4530-bb4a-9bdaf1ce92a7, dbTxnI
d=416519, deleted=true])‍‍‍