Michelle Konzack writes:
Hello,for some minutes I have gotten a warning message from one of my whatch scripts that it can not remove an empty Maildir folder. After looking into it I have found out, that the subdirectory "courierimapkeywords" contain OVER 240,000 files of ZERO byes... OK, if the Maildirfolder is to big, I move it to an archive but over IMAP and normaly the courierimapkeywords directory should be updated.
And it will be. After about 15 minutes.Keyword processing is done using a lock-free algorithm. The flip side of it is that certain temporary files cannot be removed immediately, in order to avoid race conditions. If, about 15 minutes later, the original messages are removed, all the keyword files will be deleted. If the messages remain, their contents will be combined into a single file.
The single file is actually created much earlier, and then the single files get removed 15 minutes later.
The actual algorithm is: 15 minutes after the first "mailbox update" after the keyword update.
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