Displaying 20 results from an estimated 10000 matches similar to: "barrier and commit options?"
2010 Dec 06
1
SQLite and ext3 journalling mode
Hi,
Are SQLite users that are worried about losing data that has been
committed (fsynced) better off setting data=journal than
data=ordered (or even data=writeback)?
The context is trying to reduce the number of writes to a flash
file-system without sacrificing data integrity in the event of a
power failure or OS crash.
Thanks,
Dan Kennedy.
2007 Jul 14
1
Kernel panic in ext3:dx_probe, help needed
This may or may not be ext3 related but I am trying to find any pointers
which might help me. I got a number of HP Proliant DL380 g5 with a P400
controller and also two qla2400 cards. The OS is RedHat EL4 U5 x86_64.
Every time during reboot these systems panic after the last umount and I
believe before the cciss driver is getting unloaded. The last messages I
am able to see are:
md: stopping
2009 Feb 24
7
bad I/O performance with HP Smart Array RAID
Hi all,
I discovered lately that two of my XEN servers suffer from a really
bad disk throughput - in domU as well as in dom0. All of them run
Debian/Etch, Kernel 2.6.18-6-xen (orig. Debian) with XEN 3.2 (backported).
The software versions seem to be ok for most machines:
Lenovo A57 with S-ATA and (E8200, VT enabled): up to 90MB/s
Shuttle, FB61 based, ATA-Disk (Celeron, no VT): up to
2010 Jun 17
1
kjournald blocked in D state
I have a system on which kjournald becomes blocked in D state quite often.
Looking at a core file we have 5 mounted ext3 filesystems:
crash> mount
VFSMOUNT SUPERBLK TYPE DEVNAME DIRNAME
10037e07b00 10037e4ec00 rootfs rootfs /
10037e07ec0 10037e4e400 proc /proc /proc
10037e07d40 102188abc00 tmpfs
2006 Dec 09
2
fsync, ext3, raid (md) 1, write barriers and PATA caching
I have been trying to figure out whether I can enable write caching on my
PATA hard drives (WD3200JB) and have fsync not return until data is
safely on the platters. I am also running software raid.
This is currently on FC5 (though soon to be FC6) with a 2.6.18 kernel.
>From snippets I have found on the net, it looks like write barriers are
pushed down through software raid when using raid 1.
2009 May 20
1
cannot mount ext3 boot partition as r/w since 2.6.30
Hi all,
I am testing new kernel on a mips machine (64 bits for kernel, 32 bits
userland) and I found a problem when mounting the root file system. It
is an ext3 file system that is correctly mounted as read only. While
booting the system remount the file system as read/write and keep
starting all daemons.
Moving from 2.6.26 to 2.6.30 kernel, I get this error while remounting
the file system
2009 May 05
4
BUG at fs/buffer.c:2933 during umount
Hi,
I could not find this anywhere else reported, so here we go:
creating a new btrfs filesystem (btrfs-progs-unstable from git) and
mounting it succeeds, unmounting however fails with the kernel messages
attached to this mail. After that, I can still read and write to the
btrfs mount, but e.g. /bin/sync never finishes, sysrq-s never reports
"Sync complete".
I''m using a
2007 Nov 02
1
journal has aborted
All,
We are encountering spurious errors with ext3. After some period of heavy IO
we may see messages similiar to:
EXT3-fs error (device cciss/c0d0p5) in start_transaction: Journal has
aborted
When this happens the filesystem is remounted read-only. If it's the root
filesystem the system becomes unresponsive and must be rebooted. An fsck on
the affected filesystem shows lots of corruption.
2006 Dec 19
1
Does ext3 prevent partial page writes?
Basically I want to know if I can turn off full_page_writes in my postgres
config.
http://www.postgresql.org/docs/8.2/interactive/wal-reliability.html
2006 Nov 29
4
SAS Controllers
Hi All, first time post so please excuse any blunders
We are specifying two servers using supermicro X7DBE+ MB and want to add on a SAS controller
for Raid 10. We want to use the CentOS 4.4 X86_64 distro.
We are currently considering an Intel CC SRCSAS144E SAS Raid Controller for the servers
using 4 Fujitsu 147 GB SAS HDD, and a Adaptec SASC RAID 4805 8-port for the server using 6
Fujitsu
2004 Nov 29
4
1.0-test53, sig11 when sorting by thread
Hello.
When trying to sort a folder by thread (with pine4.61), I get a sig11.
The mailstore is Maildir, indexes stored in /var/indexes/%u.
The syslog on the server shows this:
Nov 29 11:37:55 olan dovecot: IMAP(kowalski): Corrupted index cache file /var/indexes/kowalski/.INBOX/dovecot.index.cache: record points outside file
Nov 29 11:37:56 olan dovecot: child 14344 (imap) killed with signal 11
2003 Aug 20
1
convert_string error when tring to join AD domain with Samba 3 RC1
I'm getting the following when trying to join an Active Directory
domain from Samba 3.
Before anyone asks: mikem is a domain admin and use spnego = no is set
to allow to me to auth against a Win2K3 box...
net ads join -U mikem
mikem password:
[2003/08/20 13:45:30, 0] lib/charcnv.c:convert_string(194)
convert_string: Required 19, available 16
>From Google, it seems lots of people are
2017 May 09
3
Generating samples from truncated multivariate Student-t distribution
Dear Members,
I am working with 6-dimensional Student-t distribution with 4 degrees
of freedom truncated to [20; 60]. I have generated 100 000 samples
from truncated multivariate Student-t distribution using rtmvt
function from package ?tmvtnorm?. I have also calculated mean vector
using equation (3) from attached pdf. The problem is, that after
summing all elements in one column of rtmvt result
2009 Feb 04
2
can't make 3.3.0 on Solaris 10
I downloaded 3.3.0 and tried compiling on Solaris 10 and got pretty
far into the make before this message:
Linking bin/smbd
./bin/libtdb.so: undefined reference to `write@SUNW_0.9'
./bin/libwbclient.so: undefined reference to `sleep@SUNW_0.7'
./bin/libtdb.so: undefined reference to `pread64@SUNW_1.4'
./bin/libtdb.so: undefined reference to `fcntl@SUNW_0.9'
./bin/libtalloc.so:
2024 Apr 11
4
D-bus integration
Dear OpenSSH developers,
I was looking at the fail2ban project and had an idea that instead of
parsing log files it could be possible to notify interested parties
(like fail2ban) via (for instance) D-bus about a failed login attempt.
Other application could also use this protocol to notify about suspect
behaviors. A central functionality will allow for other (new) projects
to integrate
2010 Feb 03
1
[PATCH] Re: name_count maxed, losing inode data: dev=00:05, inode=5221
Ralf Hildebrandt reported[0] the following messages on ext3-users:
name_count maxed, losing inode data: dev=00:05, inode=5221
because the filesystem in question is indeed ext3. However, this warning
is not generated by ext3 code but by the audit framework. While the
origins of these messages are discussed elsewhere[1] the following
patch modifies the printks in question so that users know
2009 Dec 24
6
benchmark results
I've had the chance to use a testsystem here and couldn't resist running a
few benchmark programs on them: bonnie++, tiobench, dbench and a few
generic ones (cp/rm/tar/etc...) on ext{234}, btrfs, jfs, ufs, xfs, zfs.
All with standard mkfs/mount options and +noatime for all of them.
Here are the results, no graphs - sorry:
http://nerdbynature.de/benchmarks/v40z/2009-12-22/
Reiserfs
2009 Dec 24
6
benchmark results
I've had the chance to use a testsystem here and couldn't resist running a
few benchmark programs on them: bonnie++, tiobench, dbench and a few
generic ones (cp/rm/tar/etc...) on ext{234}, btrfs, jfs, ufs, xfs, zfs.
All with standard mkfs/mount options and +noatime for all of them.
Here are the results, no graphs - sorry:
http://nerdbynature.de/benchmarks/v40z/2009-12-22/
Reiserfs
2004 Oct 21
2
migration to maildir and arrival time
Hello.
I am currently testing dovecot (0.99.10.8, Debian woody from backports),
with the maildir storage.
I have noticed that when I use the mailutil tool from uw-imap
distribution to transfer my IMAP mailboxes from our current server
(uw-imap, mbx format) to the dovecot one, the mails arrival time are
apparently lost. I can see this in Pine, using the Arrival sort: the
mailboxes on the
2006 Apr 22
7
Instance variables versus local variables
This novice coder roughly understands the difference between instance
and local variables thanks to David Black''s excellent book, but I''m
still unclear as to when and why a either is more desirable to use.
In general, I use instance variables in my controller and local in my
views, but I''m not sure as to why or if this is correct.
Thanks
Joe Kowalski