Crash: createNode() nested exception is ...could not insert

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jsauer

Hi,
I just need to import some thousand demo data for performance testing. I wrote a tiny JavaScript

testDoc = space.childByNamePath("test_doc.pdf");
if(testDoc!=null)
{
    var newNode;
    for(i=0;i<500;i++)
    {
        newNode = space.createNode("test_" + i.toString() + ".pdf","cm:content");
        newNode.content = testDoc.content;
        newNode.mimetype =testDoc.mimetype;
        newNode.properties.title=newNode.name;
        newNode.save();
    }
}
‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

Running it on the space creates the following error message:

Please correct the errors below then click OK.

    * A system error happened during the operation: 02090638 Failed to execute script 'workspace://SpacesStore/59e69e84-009d-4e78-b7c8-caa5280bfc4e': could not insert: [org.alfresco.repo.domain.hibernate.ChildAssocImpl]; nested exception is org.hibernate.exception.LockAcquisitionException: could not insert: [org.alfresco.repo.domain.hibernate.ChildAssocImpl]

The demo file used to have some content available is 650K in size.

Alfresco 3.2.r2 on Centos5.4, Mysql 5.0.77

I wanted to create 10,000 files but even with 500 I get this error 😞

The stack trace is 1000km long. Mentioning deadlocks etc.
Besides this there are of cause lots of calls to PdfBoxContentTransformer, all take the same amount of time 3101ms

Any suggestions?
I know that the whole JS call is encapsuled in one big transaction. Is there a way to make smaller transactions?

UPDATE
I wondered what will happen if I exchange the pdf master content with a plain text file. Successfully created 100 files in a first run. Now all successive runs fail.
The file size has been reduced to 470K. The error message is different now:

Please correct the errors below then click OK.
    * This wizard has been already been completed, please re-launch it to continue.

The log file states that the Rhino engine is runing the script either several times or in several tuncs (do not know though)

17:45:27,315 User:jsauer DEBUG [repo.jscript.RhinoScriptProcessor] Time to execute script: 50886.715ms
17:45:27,430 User:jsauer DEBUG [repo.jscript.RhinoScriptProcessor] Imports resolved, adding resource '_root
17:46:18,320 User:jsauer DEBUG [repo.jscript.RhinoScriptProcessor] Time to execute script: 101263.414ms
17:46:18,320 User:jsauer DEBUG [repo.jscript.RhinoScriptProcessor] Time to execute script: 50887.766ms
17:46:18,448 User:jsauer DEBUG [repo.jscript.RhinoScriptProcessor] Imports resolved, adding resource '_root
17:46:18,744 User:jsauer DEBUG [repo.jscript.RhinoScriptProcessor] Imports resolved, adding resource '_root
17:47:09,341 User:jsauer DEBUG [repo.jscript.RhinoScriptProcessor] Time to execute script: 50594.91ms
17:47:09,341 User:jsauer DEBUG [repo.jscript.RhinoScriptProcessor] Time to execute script: 50890.727ms
17:47:09,455 User:jsauer DEBUG [repo.jscript.RhinoScriptProcessor] Imports resolved, adding resource '_root
17:47:09,639 User:jsauer DEBUG [repo.jscript.RhinoScriptProcessor] Imports resolved, adding resource '_root
17:48:00,348 User:jsauer DEBUG [repo.jscript.RhinoScriptProcessor] Time to execute script: 50889.8ms
17:48:00,348 User:jsauer DEBUG [repo.jscript.RhinoScriptProcessor] Time to execute script: 50706.74ms
17:48:00,634 User:jsauer DEBUG [repo.jscript.RhinoScriptProcessor] Imports resolved, adding resource '_root
17:48:00,651 User:jsauer DEBUG [repo.jscript.RhinoScriptProcessor] Imports resolved, adding resource '_root
17:48:51,368 User:jsauer DEBUG [repo.jscript.RhinoScriptProcessor] Time to execute script: 50714.203ms
17:48:51,368 User:jsauer DEBUG [repo.jscript.RhinoScriptProcessor] Time to execute script: 50731.688ms
17:48:51,685 User:jsauer DEBUG [repo.jscript.RhinoScriptProcessor] Imports resolved, adding resource '_root
17:48:52,141 User:jsauer DEBUG [repo.jscript.RhinoScriptProcessor] Imports resolved, adding resource '_root
17:49:42,371 User:jsauer DEBUG [repo.jscript.RhinoScriptProcessor] Time to execute script: 50682.613ms
17:49:42,933 User:jsauer DEBUG [repo.jscript.RhinoScriptProcessor] Imports resolved, adding resource '_root
17:50:33,378 User:jsauer DEBUG [repo.jscript.RhinoScriptProcessor] Time to execute script: 50442.676ms
17:50:33,378 User:jsauer DEBUG [repo.jscript.RhinoScriptProcessor] Time to execute script: 101233.914ms
17:50:33,624 User:jsauer DEBUG [repo.jscript.RhinoScriptProcessor] Imports resolved, adding resource '_root
17:50:34,104 User:jsauer DEBUG [repo.jscript.RhinoScriptProcessor] Imports resolved, adding resource '_root

Tomcat still consumes about 95%CPU but no logging takes place anymore. And after the first run the full text indexer seems to work and thumbnail generation worked. Now nothing….

UPDATE 2
Filesize does not seem to matter. Currently just pass 6 byte string directly into content. Same issue. Will try through foundation api 😞

UPDATE 3
After Tomcat restart first run worked again. Now with reduced file size 200 nodes created… another 300 fail 😞
By the way JVM has 2GB Ram. 3 CPU Cores

Thanks
Jörg

jsauer

Hi,
following up my problem from yesterday I talked to some Alfresco Enterprise implementors and from what I learned is that Alfresco JavaScript implementation is not suitable for creating lots of nodes, as I tried in the above mentioned script. And the content size is not the issue (as I have figured out by myself already)

It seems just to be recommended to do lightwight work from within JavaScript and delegate the main workload to Java code 😞

I would like to start a discussion here about scripting issues, work arounds and other scripting technologies.

• What can be achieved by JavaScript scripting?
• What to be avoided by using JavaScript?
• What kind of workarounds / best practices do exist?
• Which other scripting technologies do exist and have been integrated with Alfresco? (BeanShell, Groovy)
• Do alternate scripting technologies address some of the problems of the JavaScript implementation?
• Live / code examples of alternative scripting

Waiting to hear from you (Alfresco? ;-))

Regards
Jörg