[vchkpw] ramdisk with ext2 or tmpfs, vpopmail mysql - heap table : performance - too big disk load
Hi, It is a good idea to use heap tables for vpopmail query-s ? MyISAM tables for UPDATES, and HEAP for selects (they will be created from MyISAM)? I wanna to minimalize the disk subsystem impact. System is always waiting for disks(big load, can even reach 20-25). What is the ideal maximum concurrent conncetion limit with mysql ? I want to put the temp directories (spamassasin, clamd, other scanners) to ramdisk. What to use: 1. ramdisk, fixed size (set with kernel parameter), with ext2, looks like a "real" disk, with real filesystem 2. tmpfs, with maximized ramsize, eating always as many ram what is needed. cons ? What is the price for this "freedom" ? (can I use tmpfs on a debian server for the main /tmp ?) I can spend 512 or even 1024 Mb ram for ramdrives, or tmpfs. I need every idea, or solution, how can I reduce the disk usage on the system. I want to keep only what is necessery. I will turn of mail logging via syslog (deamontools is doinga great job logging mails, why waste the needed disk i/o power for syslog), other things ? What if I put qmails queue to ramdisk (or tmpfs ramdisk) ? (memory cards ? are good enough ?) Peter
Re: [vchkpw] qmail+vpopmail on redhat 7.3 server gets very busy
I noticed that one local user which I created when I installed qmail and before installing vpopmail, was getting lots of messages from qmail under /home/user/Maildir. what do your logs say about this? (Hint: if you had some of those messages you recently deleted around, they would certainly help ;) The directory was /home/user/Maildir/new was full of thousands of messages in this format: 12345678999.16207.qmail ,S=14766 When I tried to go in the directory to read one of the messages, the computer would hang. That is why I decided to delete the directory. Now my qmail log shows: @4000436ab0a416ec08cc new msg 116203 @4000436ab0a416ee27c4 info msg 116203: bytes 2061 from [EMAIL PROTECTED] qp 20944 uid 507 @4000436ab0a41733b08c starting delivery 194354: msg 116203 to local [EMAIL PROTECTED] @4000436ab0a41734fc94 status: local 1/10 remote 14/20 @4000436ab0a417e397cc new msg 116176 @4000436ab0a417e5a724 info msg 116176: bytes 2174 from [EMAIL PROTECTED] qp 20947 uid 501 @4000436ab0a41821c9ac starting delivery 194355: msg 116176 to local [EMAIL PROTECTED] @4000436ab0a418232554 status: local 2/10 remote 14/20 @4000436ab0a41824e68c delivery 194354: success: did_0+1+0/qp_20947/ @4000436ab0a418278a54 status: local 1/10 remote 14/20 @4000436ab0a4182a7854 end msg 116203 I do not know what the messages are about and where they are going . /var/spool/mail has nothing in it. Under vpopmail I have [EMAIL PROTECTED] The qmail.domain.com is the local machine It took the system more than one hour to delete the /home/user/Maildir/new directory and /home/user/Maildir/tmp and left /home/user/Maildir/cur. Now the server is working fine, but qmail did not recreate the new and tmp directories again. it's not supposed to. -Jeremy Ok, but why qmail was writing to that directory? Thank you All for your help. Sam - Original Message - From: Jeremy Kitchen [EMAIL PROTECTED] To: vchkpw@inter7.com Sent: Wednesday, November 02, 2005 10:31 PM Subject: Re: [vchkpw] qmail+vpopmail on redhat 7.3 server gets very busy
Re: [vchkpw] qmail+vpopmail on redhat 7.3 server gets very busy
On Nov 3, 2005, at 7:38 PM, Sam wrote: @4000436ab0a417e5a724 info msg 116176: bytes 2174 from [EMAIL PROTECTED] qp 20947 uid 501 Looks like doublebounce messages. What do you have in /var/qmail/control/doublebounceto? I've set my server to have doublebounce in that file, and then put # in /var/qmail/alias/.qmail-doublebounce. That way doublebounces are just deleted -- 99.9% of them are crap and not worth looking at (e.g., spam from forged return addresses). -- Tom Collins - [EMAIL PROTECTED] QmailAdmin: http://qmailadmin.sf.net/ Vpopmail: http://vpopmail.sf.net/ You don't need a laptop to troubleshoot high-speed Internet: sniffter.com
