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flume-taildirectory-source's Issues

Agent shutdown fail causes log lines lost

If flume agent fails and the service stops, when it's restarted taildirectory can't start from the last line processed.

One posibility to avoid this problem is to save the current file pointer and serialize an object containing this pointer and the inode file identification.

Only one file are being released due bad loop implementation

for (FileSet fileSet: fileSetMap.values()){

                    [.......]
                    if (currentTime - lastAppendTime > TimeUnit.MINUTES.toMillis(timeToUnlockFile)){
                        logger.info("File: " + fileSet.getFilePath() + 
                                " not modified after " + timeToUnlockFile + " minutes" +
                                " removing from monitoring list");
                        fileSetMap.get(fileKey).clear();
                        fileSetMap.get(fileKey).close();
                        fileSetMap.remove(fileKey);
                        filePathsAndKeys.remove(fileSet.getFilePath().toString());
                    }
                }

Check this line, not possible to remove a item for hahsmap being looped
fileSetMap.remove(fileKey);

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