AFIK there is no transaction not rollback support in lucene Aviran http://www.aviransplace.com
-----Original Message----- From: John Wang [mailto:[EMAIL PROTECTED] Sent: Wednesday, November 17, 2004 20:25 PM To: [EMAIL PROTECTED] Subject: lucene transaction and roll back implementation Hi folks: How does lucene implement transaction and roll back. E.g. if the machine crashes (from power outage etc.) in the middle of a write, e.g. indexWriter.close()? From examining the code, seems that there is a possibility such crash can cause a corrupted index. (in segmentInfos, new data is written to a temp file and then swaps back to the actual file by doing Util.renameFile, but Util.renameFile is not atomic if we are doing a byte copy) Is there a automatic recovery mechansim or a roll back? What is a general advise for how to handle these situations? Thanks -John --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
