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  • 55 votes cast
May
20
accepted Medium CPU usage but high load
May
20
comment Medium CPU usage but high load
Okay.. They are primarily PHP scripts that are computationally heavy; and Redis in memory (without persistence to disk). Essentially, no IO.
May
20
comment Medium CPU usage but high load
Okay, so I can safely increase my warning thresholds to above 15 load and critical to say 20 for this machine? Would you have any links to back this up.. Asking because blog.scoutapp.com/articles/2009/07/31/… says tasks will pile up for load beyond the CPU / thread count
May
20
awarded  Commentator
May
20
comment Medium CPU usage but high load
I've seen this before.. By that logic, stuff is piling up after a load of 4 on this system (4 cores)? Or 8 if threads count as a lane?
May
20
asked Medium CPU usage but high load
Jan
12
comment nginx: connect() failed (111: Connection refused) while connecting to upstream
To those who are confused, change localhost to 127.0.0.1
Jan
6
awarded  Popular Question
Dec
20
answered IO Wait causing so much slowdown (EXT4 JDB2 at 99% IO ) During Mysql Commit
Dec
20
comment IO Wait causing so much slowdown (EXT4 JDB2 at 99% IO ) During Mysql Commit
@NicCottrell yes, they're the same.
Aug
25
comment mysql: multi slave replication but one slave to replicate only single table of specific database
"Each slave receives the entire binary log but processess.." Isn't this a huge waste of data (expensive in AWS) for servers with HUGE (GBs in a day) binlogs? Is there a way to configure the master not to send this data to specific slaves?
Jul
14
comment Postfix not sending email after upgrading to Ubuntu 12.04
This fixed it for me.
Jul
11
answered UFW: Disable logging of blocks due to optional FIN/ACK message being received
Jul
8
comment Performance hit from moving DB to another drive symlink?
Thanks for this. We're moving the whole database folder for one particular db to a different drive. This shouldn't pose a problem the way symlinking each innodb file does, correct?
Jul
7
accepted Performance hit from moving DB to another drive symlink?
Jul
7
comment Performance hit from moving DB to another drive symlink?
That's perfect and great to know, thanks.
Jul
7
asked Performance hit from moving DB to another drive symlink?
Jul
3
comment Can I run a cron job more frequently than every minute?
You can use run-one to ensure a program / even a PHP script isn't starting a duplicate instance. sudo apt-get install run-one and call it by run-one <normal command>
May
16
accepted Monitoring important log files on multiple linux hosts?
May
16
answered Monitoring important log files on multiple linux hosts?