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From "Mike Matrigali (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (DERBY-5624) System can run out of stack space while processing DropOnCommit requests.
Date Mon, 20 Feb 2012 17:39:40 GMT
System can run out of stack space while processing DropOnCommit requests.
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                 Key: DERBY-5624
                 URL: https://issues.apache.org/jira/browse/DERBY-5624
             Project: Derby
          Issue Type: Bug
          Components: Store
    Affects Versions: 10.8.2.2
            Reporter: Mike Matrigali
            Assignee: Mike Matrigali


The system currently recursively calls xact.notifyObservers() from DropOnCommit.update().
 It does this because in some cases
new observers can be added while processing the list of notifyObservers and those were being
missed before the change, causing
Assertions in the tests and possibly files not properly dropped on commit.

Multiple users on the Derby user list have had failures running SYSCS_UTIL.SYSCS_COMPRESS_TABLE(),
running out of stack track
with a heavily recursive stack trace of the form (see more detail from these reports in subsequent
comments):
Caused by: java.lang.StackOverflowError
at java.lang.ThreadLocal.get(ThreadLocal.java:125)
at java.lang.StringCoding.deref(StringCoding.java:46)
at java.lang.StringCoding.encode(StringCoding.java:258)
at java.lang.String.getBytes(String.java:946)
at java.io.UnixFileSystem.getBooleanAttributes0(Native Method)
at java.io.UnixFileSystem.getBooleanAttributes(UnixFileSystem.java:228)
at java.io.File.exists(File.java:733)
at org.apache.derby.impl.store.raw.data.StreamFileContainer.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.derby.impl.store.raw.data.StreamFileContainer.privExists(Unknown Source)
at org.apache.derby.impl.store.raw.data.StreamFileContainer.open(Unknown Source)
at org.apache.derby.impl.store.raw.data.BaseDataFileFactory.openStreamContainer(Unknown Source)
at org.apache.derby.impl.store.raw.xact.Xact.openStreamContainer(Unknown Source)
at org.apache.derby.impl.store.raw.data.BaseDataFileFactory.dropStreamContainer(Unknown Source)
at org.apache.derby.impl.store.raw.xact.Xact.dropStreamContainer(Unknown Source)
at org.apache.derby.impl.store.raw.data.DropOnCommit.update(Unknown Source)
at java.util.Observable.notifyObservers(Observable.java:142)
at org.apache.derby.iapi.store.raw.xact.RawTransaction.notifyObservers(Unknown Source)
at org.apache.derby.impl.store.raw.data.DropOnCommit.update(Unknown Source)
at java.util.Observable.notifyObservers(Observable.java:142)
at org.apache.derby.iapi.store.raw.xact.RawTransaction.notifyObservers(Unknown Source)
at org.apache.derby.impl.store.raw.data.DropOnCommit.update(Unknown Source)
at java.util.Observable.notifyObservers(Observable.java:142)
at org.apache.derby.iapi.store.raw.xact.RawTransaction.notifyObservers(Unknown Source)
at org.apache.derby.impl.store.raw.data.DropOnCommit.update(Unknown Source)
at java.util.Observable.notifyObservers(Observable.java:142)

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