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  • 0 posts edited
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  • 12 votes cast
Jul
15
revised What is the difference between a directory name that ends with a slash and one that does not?
added 132 characters in body
Jul
15
answered What is the difference between a directory name that ends with a slash and one that does not?
Jul
15
awarded  Commentator
Jul
15
comment My cron job is not sending an email with any output, I see only a blank email
You could also tack on 2>&1 to your sqlplus incantation, and capture any output that goes to stderr to your logfile, which hopefully would net you the reason for why it generated no output on stdout. cron has potentially also sent an email with any output from the shell-script in general.
Mar
17
awarded  Yearling
Nov
5
comment Calls to sync/fsync slow down after 30 minutes uptime
Adding the gist of my comment as an answer.
Nov
5
answered Calls to sync/fsync slow down after 30 minutes uptime
Nov
5
comment Calls to sync/fsync slow down after 30 minutes uptime
smartctl -c, is the drive running some of it's self-tests ? I don't recall the specifics, but many years ago some friends of mine tracked down a periodically occurring slowdown of our storage servers to the drives running selftests at that time monopolizing io.
Dec
16
awarded  Yearling
Dec
11
awarded  Nice Answer
Oct
8
awarded  Nice Answer
Sep
5
comment Static files give ever changing checksum value on Linux
I'm still not entirely sold on this not being caused by an userspace program rather than kernel-bug/faulty hardware. For faulty hardware, given that this is tmpfs, you'd be seeing either memory corruption, or in-flight corruption, which memtest should have caught, I'd also have expected kernel oopses if memory is randomly mangled(It'd be weird if it's isolated only to bodies of files on tmpfs) Unless you've already tried, I'd suggest looking into inotify, and have inotify watches on the files watching for modifications, when you see the files change, and lsof for seeing if the files are opened
Dec
16
awarded  Yearling
Dec
16
awarded  Yearling
Jul
19
revised Sync writes very slow. Ubuntu 10.10, 32 bits, ext4
Oops, fixed misspelled word.
May
22
answered Reducing packet loss in tc rate limiting
May
9
answered Unpredictable memory explosions
Apr
8
comment Is it possible to find the path of a running program?
(deleted my comment as it no longer applied after your edit:)
Apr
8
answered Where do files go when the rm command is issued?
Mar
3
awarded  Critic