| Re: NNTP Import Problems [message #166922 is a reply to message #166898] |
Wed, 28 March 2012 18:51  |
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Registered: February 2012
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[Sorry, I now think this is probably in the wrong forum. It might be more appropriate for a moderator to move this into the Bug Reports forum? ]
OK, I've been doing a bit more investigation of this problem this evening.
It seems this issue only affects split attachments (i.e. where a large file is broken up into multiple NNTP messages) when the chunk size is not tiny, and the file is relatively non-compressible (e.g. a JPEG photograph). Attachments wholly contained within a single NNTP message are imported correctly.
As far as I can tell, split attachments are never handled correctly - they are always imported into the Forum as text. That I don't mind, and can live with.
However, when importing an attachment with a largeish (~1MB) chunk size, the php process seems to go into an infinite loop and never completes. I have left such a process running for more than 20 minutes and it showed no signs of finishing before killing it. The log file is empty.
If the chunk size is very small (~50KB) then the import process does complete, but I get a lot of PHP warnings in the log file (and as mentioned above each chunk is imported as text). An example of such a log file is attached.
Weirdly, if I try importing a highly-compressible file (e.g. a plain white BMP image) the import always completes, regardless of split size (although still the attachment is imported as text).
I can live with the split attachments being treated as text, but the php process going into a seemingly infinite loop is really a show-stopper for me. This effectively halts all further NNTP importing, and takes the CPU to 100% permanently until the process is manually killed.
Any ideas what might be causing this, and if it's fixable?
Many thanks in advance!
[Updated on: Wed, 28 March 2012 18:53] Report message to a moderator |
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