[jira] [Created] (LOG4J2-2677) DeleteAction race results in failure to delete rolled files

["Carter Kozak (Jira)" <ji...@apache.org>]

Carter Kozak created LOG4J2-2677:
------------------------------------

             Summary: DeleteAction race results in failure to delete rolled files
                 Key: LOG4J2-2677
                 URL: https://issues.apache.org/jira/browse/LOG4J2-2677
             Project: Log4j 2
          Issue Type: Bug
    Affects Versions: 2.12.1
            Reporter: Carter Kozak


Uncovered this due to the fix for LOG4J2-2658, these failures were encountered but not logged previously.

AbstractPathAction.execute uses Files.walkFileTree, which can fail if any file in the tree is deleted, regardless of whether or not it's related to files we're deleting. The walkFileTree API doesn't provide any way to continue in this case.

{code}
2019-08-19 16:47:10,819 Log4j2-TF-12-RollingFileManager-698 WARN Exception reported by action 'class org.apache.logging.log4j.core.appender.rolling.RollingFileManager$AsyncAction' java.nio.file.NoSuchFileException: var/log/event.log
 at sun.nio.fs.UnixException.translateToIOException(UnixException.java:86)
 at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:102)
 at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:107)
 at sun.nio.fs.UnixFileAttributeViews$Basic.readAttributes(UnixFileAttributeViews.java:55)
 at sun.nio.fs.UnixFileSystemProvider.readAttributes(UnixFileSystemProvider.java:144)
 at sun.nio.fs.LinuxFileSystemProvider.readAttributes(LinuxFileSystemProvider.java:99)
 at java.nio.file.Files.readAttributes(Files.java:1737)
 at java.nio.file.FileTreeWalker.getAttributes(FileTreeWalker.java:219)
 at java.nio.file.FileTreeWalker.visit(FileTreeWalker.java:276)
 at java.nio.file.FileTreeWalker.next(FileTreeWalker.java:372)
 at java.nio.file.Files.walkFileTree(Files.java:2706)
 at org.apache.logging.log4j.core.appender.rolling.action.AbstractPathAction.execute(AbstractPathAction.java:76)
 at org.apache.logging.log4j.core.appender.rolling.action.DeleteAction.getSortedPaths(DeleteAction.java:162)
 at org.apache.logging.log4j.core.appender.rolling.action.DeleteAction.execute(DeleteAction.java:132)
 at org.apache.logging.log4j.core.appender.rolling.action.AbstractPathAction.execute(AbstractPathAction.java:69)
 at org.apache.logging.log4j.core.appender.rolling.action.DeleteAction.execute(DeleteAction.java:82)
 at org.apache.logging.log4j.core.appender.rolling.action.CompositeAction.execute(CompositeAction.java:74)
 at org.apache.logging.log4j.core.appender.rolling.RollingFileManager$AsyncAction.execute(RollingFileManager.java:482)
 at org.apache.logging.log4j.core.appender.rolling.action.AbstractAction.run(AbstractAction.java:66)
 at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
 at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
 at java.lang.Thread.run(Thread.java:748)
{code}



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