0000596: Block allocation issues with session store

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Category

Severity

Reproducibility

Date Submitted

Last Update

0000596

[Resin]

minor

always

12-29-05 09:47

01-03-06 11:21

Reporter

ferg

View Status

public

Assigned To

Priority

urgent

Resolution

fixed

Platform

Status

closed

Projection

none

OS Version

ETA

none

Fixed in Version

3.0.18

Product Version

3.0.17

Product Build

Summary

0000596: Block allocation issues with session store

Description

(rep by Keith Fetterman)

The following traces are showing up in the logs

java.lang.Exception: Stack trace
    at java.lang.Thread.dumpStack(Thread.java:1158)
    at com.caucho.db.store.Block.allocate(Block.java:113)
    at com.caucho.db.store.Transaction.readBlock(Transaction.java:280)
    at com.caucho.db.store.Store.writeFragmentLong(Store.java:1023)
    at com.caucho.db.store.Inode.writeFragmentAddr(Inode.java:609)
    at com.caucho.db.store.Inode.append(Inode.java:293)
    at com.caucho.db.store.BlobOutputStream.flushBlock(BlobOutputStream.java:192)
    at com.caucho.db.store.BlobOutputStream.write(BlobOutputStream.java:125)
    at com.caucho.db.table.BlobColumn.setStream(BlobColumn.java:186)
    at com.caucho.db.table.BlobColumn.set(BlobColumn.java:274)
    at com.caucho.db.sql.UpdateQuery.execute(UpdateQuery.java:124)
    at com.caucho.db.jdbc.PreparedStatementImpl.execute(PreparedStatementImpl.java:349)
    at com.caucho.db.jdbc.PreparedStatementImpl.executeUpdate(PreparedStatementImpl.java:325)
    at com.caucho.server.cluster.FileBacking.storeSelfUpdate(FileBacking.java:477)
    at com.caucho.server.cluster.FileBacking.storeSelf(FileBacking.java:437)
    at com.caucho.server.cluster.FileStore.store(FileStore.java:154)
    at com.caucho.server.cluster.ClusterObject.store(ClusterObject.java:385)
    at com.caucho.server.session.SessionImpl.finish(SessionImpl.java:805)
    at com.caucho.server.connection.AbstractHttpRequest.finish(AbstractHttpRequest.java:2302)
    at com.caucho.server.webapp.WebAppFilterChain.doFilter(WebAppFilterChain.java:216)
    at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:229)
    at com.caucho.server.hmux.HmuxRequest.handleRequest(HmuxRequest.java:419)
    at com.caucho.server.port.TcpConnection.run(TcpConnection.java:388)
    at com.caucho.util.ThreadPool.runTasks(ThreadPool.java:490)
    at com.caucho.util.ThreadPool.run(ThreadPool.java:423)
    at java.lang.Thread.run(Thread.java:595)

The corresponding code is:

     if (_useCount > 32 && log.isLoggable(Level.FINE)) {
        Thread.dumpStack();
        log.fine("using " + this + " " + _useCount + " times");
      }

Steps To Reproduce

Additional Information

Attached Files

Relationships

Notes
(0000630) ferg 01-03-06 11:21	WriteBlock was improperly overriding the free() method, breaking the database block reference count.

Issue History
Date Modified	Username	Field	Change
12-29-05 09:47	ferg	New Issue
12-29-05 09:48	ferg	Priority	normal => urgent
12-29-05 09:48	ferg	View Status	@0@ => public
01-03-06 11:21	ferg	Status	new => closed
01-03-06 11:21	ferg	Note Added: 0000630
01-03-06 11:21	ferg	Resolution	open => fixed
01-03-06 11:21	ferg	Fixed in Version	=> 3.0.18

Mantis 1.0.0rc3[^]

28 total queries executed.
25 unique queries executed.