A NOTE has been added to this issue.
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http://www.dbmail.org/mantis/view.php?id=462
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Reported By: fehuq
Assigned To:
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Project: DBMail
Issue ID: 462
Category: IMAP daemon
Reproducibility: always
Severity: major
Priority: normal
Status: new
target:
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Date Submitted: 29-Nov-06 15:13 CET
Last Modified: 09-Dec-06 06:09 CET
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Summary: imap daemon appears to leak memory on FETCH command
Description:
I delivered several thousand messages to an account on a test server, and
set up an IMAP account in Thunderbird to access it. Thunderbird ran its
junkmail controls on the folder, which issues a FETCH command for each
message. I noticed later that the dbmail-imapd child process handling my
connection had used almost all of the system's free memory and swap.
As best as I can tell, the process usually doesn't free memory used after
a message is fetched. I'm attaching a text file containing top's output of
the process at 3 second intervals. The memory usage does drop a bit in some
of the intervals, but overall it gets large fairly fast.
Killing, or having dbmail restart the child process after 1 connection
does successfully free the memory, though. The pop server does not show
the same behavior.
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Relationships ID Summary
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has duplicate 0000469 dbmail-imapd fetches all available memory
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fehuq - 29-Nov-06 15:24
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I should have added about the top output that it's just a small sample,
over the course of about a minute and a half of a new process as I fetch
all the messages. It's not meant to show a process using all system
memory.
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aaron - 09-Dec-06 06:09
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Using the fetches you've shown and running through 'valgrind dbmail-imapd
-n' and typing them in by hand, against my testing database, I found no
active leaks.
Maybe the leaks depend upon the messages themselves? (*ugh*)
Issue History
Date Modified Username Field Change
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29-Nov-06 15:13 fehuq New Issue
29-Nov-06 15:13 fehuq File Added: top_3sec_interval.txt
29-Nov-06 15:24 fehuq Note Added: 0001633
06-Dec-06 12:41 fehuq File Added: dbmail-imap-fetches.txt
09-Dec-06 05:51 aaron Relationship added has duplicate 0000469
09-Dec-06 06:09 aaron Note Added: 0001661
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