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https://issues.apache.org/jira/browse/DERBY-151?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Myrna van Lunteren updated DERBY-151:
-------------------------------------
Issue & fix info: [High Value Fix, Repro attached] (was: [High Value
Fix])
Bug behavior facts: [Seen in production]
> Thread termination -> XSDG after operation is 'complete'
> --------------------------------------------------------
>
> Key: DERBY-151
> URL: https://issues.apache.org/jira/browse/DERBY-151
> Project: Derby
> Issue Type: Bug
> Components: Store
> Affects Versions: 10.0.2.1
> Environment: Linux kernel 2.4.21-243-athlon (SuSE 9.0)
> Reporter: Barnet Wagman
> Attachments: d151.java, derby.log, Derby151Test.java
>
>
> I've encountered what appears to be a bug related to threading. After an
> INSERT operation, if the invoking thread terminates too quickly, Derby throws
> an XSDG.
> The bug is a bit difficult to isolate but it occurs consistently in the
> following situation (with a particular database and an operation of a
> particular size):
> Derby is running in embedded mode with autocommit on.
> The application performs an INPUT operation from a thread that is not the
> main thread. The INPUT is issued using a PreparedStatement. The INPUT adds
> ~ 256 records of six fields each. (Note that INSERTs of this size seem to
> work fine in other contexts.)
>
> The preparedStatement.executeUpdate() seems to excute successfully; at least
> it returns without throwing an exception.
> The thread that invoked the INPUT operation then terminates (but NOT the
> application). The next INPUT operation then results in an
> "ERROR XSDG1: Page Page(7,Container(0, 1344)) could not be written to disk,
> please check if disk is full."
> The disk is definitely not full.
> HOWEVER, if I put the calling thread to sleep for a second before it exits,
> the problem does not occur.
> I'm not quite sure what to make of this. I was under the impression that
> most of Derby's activity occurs in the application's threads. Could Derby be
> creating a child thread from in the application thread, which dies when the
> parent thread terminates?
> Thanks
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