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Posted to log4j-dev@logging.apache.org by bu...@apache.org on 2007/07/18 23:22:40 UTC
DO NOT REPLY [Bug 42933] New: - IllegalStateException thrown from FileAppender.closeFile() when log file is actively being tailed
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Summary: IllegalStateException thrown from
FileAppender.closeFile() when log file is actively being
tailed
Product: Log4j
Version: 1.2
Platform: Sun
OS/Version: Solaris
Status: NEW
Severity: major
Priority: P2
Component: Appender
AssignedTo: log4j-dev@logging.apache.org
ReportedBy: jake.happs@gdc4s.com
CC: jake.happs@gdc4s.com
I am using a custom subclass of FileAppender to write log messages to a file.
If the log file being written is being actively tailed (using 'tail -f') and
the software calls closeFile() or setFile() (which calls closeFile()) on the
FileAppender superclass, an IllegalStateException is thrown. The stack trace
is included below. This exception is thrown every time closeFile() or setFile
() are called after the exception is first thrown, even if the active tail has
been closed.
The partial stack trace is:
Exception in thread "AWT-EventQueue-0" java.lang.IllegalStateException: Current
state = FLUSHED, new state = CODING_END
at java.nio.charset.CharsetEncoder.throwIllegalStateException
(CharsetEncoder.java:941)
at java.nio.charset.CharsetEncoder.encode(CharsetEncoder.java:537)
at sun.nio.cs.StreamEncoder$CharsetSE.flushLeftoverChar
(StreamEncoder.java:358)
at sun.nio.cs.StreamEncoder$CharsetSE.implClose(StreamEncoder.java:414)
at sun.nio.cs.StreamEncoder.close(StreamEncoder.java:160)
at java.io.OutputStreamWriter.close(OutputStreamWriter.java:222)
at java.io.FilterWriter.close(FilterWriter.java:92)
at org.apache.log4j.FileAppender.closeFile(FileAppender.java:183)
at org.apache.log4j.FileAppender.reset(FileAppender.java:338)
at org.apache.log4j.FileAppender.setFile(FileAppender.java:283)
...
...
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DO NOT REPLY [Bug 42933] - IllegalStateException thrown from FileAppender.closeFile() when log file is actively being tailed
Posted by bu...@apache.org.
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------- Additional Comments From jlindwall@yahoo.com 2007-10-16 14:18 -------
I've opened a bug request with Sun to notify them that this bug (which was
fixed in 1.3.1 and 1.4.2 AND Java 6) is affecting Java 5.
I'll report any status here; for now their automated system has simply
accepted my report.
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DO NOT REPLY [Bug 42933] - IllegalStateException thrown from FileAppender.closeFile() when log file is actively being tailed
Posted by bu...@apache.org.
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jlindwall@yahoo.com changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jlindwall@yahoo.com
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DO NOT REPLY [Bug 42933] - IllegalStateException thrown from FileAppender.closeFile() when log file is actively being tailed
Posted by bu...@apache.org.
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------- Additional Comments From jlindwall@yahoo.com 2007-10-30 09:04 -------
Sun has been very helpful and speedy in addressing this regression bug. They
have a fix for it, and it will roll it out ASAP (probably for jdk 1.5.0_15).
-------------
Problem Description
(Expand on problem statement as necessary)
Escalate Bug 5005426 for JDK 5.0. This bug was fixed in 1.4.2 and in 6.0, but
still existed in 5.0.
-------------------------------------------------------
Solution Note
(Root Cause, Possible Causes or Actions taken for Closure)
Sustaining will backport the fix into a 5.0 update release (most likely _15).
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DO NOT REPLY [Bug 42933] - IllegalStateException thrown from FileAppender.closeFile() when log file is actively being tailed
Posted by bu...@apache.org.
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------- Additional Comments From bayard@apache.org 2007-08-23 02:16 -------
JVM bug maybe?
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DO NOT REPLY [Bug 42933] - IllegalStateException thrown from FileAppender.closeFile() when log file is actively being tailed
Posted by bu...@apache.org.
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------- Additional Comments From jlindwall@yahoo.com 2007-10-16 14:00 -------
This seems to be Sun JVM bug 5005426 (which was also later reported in a
duplicate bug 5005419).
It does not affect JVM 1.3.1 or Java 6, in my experimentation. I'll see if I
can get this bug re-opened in JDK 1.5.0.
http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=5005426
5005426
http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=5005419
5005419
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DO NOT REPLY [Bug 42933] - IllegalStateException thrown from FileAppender.closeFile() when log file is actively being tailed
Posted by bu...@apache.org.
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------- Additional Comments From jlindwall@yahoo.com 2007-10-04 23:15 -------
We are also seeing this problem but with Log4j's DailyRollingFileAppender and
FileAppender. It occurs in jdk 1.5.0_11 and jdk1.5.0_13 but not in
j2sdk1.3.1_20.
Here is a dorky test program to reproduce it:
import org.apache.log4j.FileAppender;
import org.apache.log4j.Logger;
import org.apache.log4j.Priority;
import org.apache.log4j.PatternLayout;
import org.apache.log4j.spi.LoggingEvent;
public class TailBug
{
public static void main(String[] args) throws InterruptedException
{
final String filename = "tailme";
FileAppender fa = new FileAppender();
fa.setName("myappender");
fa.setFile(filename);
fa.setLayout(new PatternLayout("%d %m%n"));
fa.activateOptions();
writeSomeMessages(fa);
System.out.println("NOW Start tailing " + filename + "!!!!!\n");
System.out.println("The logfile will be rotated to in 10 seconds");
Thread.sleep(10000);
final String newfilename = "tailme2";
fa.setFile(newfilename);
fa.activateOptions(); // Exception will be thrown here
writeSomeMessages(fa);
System.out.println("Done!");
}
private static void writeSomeMessages(FileAppender fa)
{
System.out.println("Logging 5 messages to file " + fa.getFile()
+ "...\n");
for( int i = 0; i < 5; i++ )
{
fa.append(new LoggingEvent("", Logger.getLogger("log"),
Priority.WARN, "This is a test message", null));
}
}
}
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