Hello,
My application is using SQLite and I find a huge discrepancy of
committing speed when synchronous flag is set on / off (via PRAGMA).
My question is can I safely turn off this flag if the underlying file
system supports journaling? The FAQ
(http://www.sqlite.org/faq.html#q5) said Another
Hi List:
May be of interest to add in the doc, that, when the second argument is
negative, the the first character of the substring is found by counting
from the right rather than the left, but remember that the last actual
character is -2, because -1 is just the ending NULL.
Of course it is
The upshot of my tests on Solaris9 was:
WARNING: Multi-threaded tests skipped: Linked against a non-threadsafe Tcl build
All memory allocations freed - no leaks
Memory used: now 0 max5727984 max-size 171798754
Page-cache used: now 0 max 13 max-size
On Aug 14, 2009, at 5:14 PM, Hugh Sasse wrote:
The upshot of my tests on Solaris9 was:
WARNING: Multi-threaded tests skipped: Linked against a non-
threadsafe Tcl build
All memory allocations freed - no leaks
Memory used: now 0 max5727984 max-size
171798754
On Fri, 14 Aug 2009, Dan Kennedy wrote:
On Aug 14, 2009, at 5:14 PM, Hugh Sasse wrote:
The upshot of my tests on Solaris9 was:
WARNING: Multi-threaded tests skipped: Linked against a non-
threadsafe Tcl build
All memory allocations freed - no leaks
Memory used: now
A.J.Millan wrote:
May be of interest to add in the doc, that, when the second argument
is negative, the the first character of the substring is found by
counting from the right rather than the left, but remember that the
last actual character is -2, because -1 is just the ending NULL.
select
On Fri, Aug 14, 2009 at 05:10:40PM +0800, Michael Han scratched on the wall:
My question is can I safely turn off this flag if the underlying file
system supports journaling?
No.
As the docs state, with synchronous=ON the system verifies the data
actually hits disk before proceeding.
Hi.
I have a database with few simple tables. Database is updated regularly
and than distributed to the clients, which only use it for reading. So,
concurrency is not an issue. But the database is already quite large.
The file is about 2.6GB and one table has about 1,800,000 rows
and another
On Fri, Aug 14, 2009 at 9:24 AM, Dmitri Priimakprii...@stanford.edu wrote:
Hi.
I have a database with few simple tables. Database is updated regularly
and than distributed to the clients, which only use it for reading. So,
concurrency is not an issue. But the database is already quite large.
On Fri, Aug 14, 2009 at 07:24:31AM -0700, Dmitri Priimak scratched on the wall:
I have a database with few simple tables. Database is updated regularly
and than distributed to the clients, which only use it for reading. So,
concurrency is not an issue. But the database is already quite
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Michael Han wrote:
My question is can I safely turn off this flag if the underlying file
system supports journaling?
By default journaling file systems only use their journal for meta-data
(eg directory entries and allocation information). They
On 14 Aug 2009, at 3:24pm, Dmitri Priimak wrote:
I have a database with few simple tables. Database is updated
regularly
and than distributed to the clients, which only use it for reading.
So,
concurrency is not an issue. But the database is already quite large.
The file is about 2.6GB
Your only problem is that you're at Stanford and Dr Hipp was at
Duke so he hates you.
Not much humor on this list, but you made my day :-)
Very funny.
-Clark
___
sqlite-users mailing list
sqlite-users@sqlite.org
I need to know that if I turn of the synchronous that no synching will
be done, up to, and including, when the session is closed. I'm asking,
because my program just INSERTs once per session, so if a synch gets
done when the session closes, that's pretty useless.
On 14 Aug 2009, at 5:25pm, Angus March wrote:
I need to know that if I turn of the synchronous that no synching will
be done, up to, and including, when the session is closed. I'm asking,
because my program just INSERTs once per session, so if a synch gets
done when the session closes,
Simon Slavin wrote:
On 14 Aug 2009, at 5:25pm, Angus March wrote:
I need to know that if I turn of the synchronous that no synching will
be done, up to, and including, when the session is closed. I'm asking,
because my program just INSERTs once per session, so if a synch gets
done when
On 14 Aug 2009, at 5:33pm, Angus March wrote:
I want my INSERT done right away,
Then do not turn off synchronous !
I just don't want it to be flushed
from the filesystem's write-behind cache until the kernel decides, not
when SQLite decides.
SQLite cannot control how your operating system
Thanks, a lot guys.
I will run a few tests with dummy database populated with my target amount
rows and will let you know results. I realize now that I seem to have some
unfounded fear of large files (FOLF) :) Hopefully it will pass.
--
Dmitri Priimak
On Fri, 14 Aug 2009 07:24:31 -0700, Dmitri Priimak
prii...@stanford.edu wrote:
Hi.
I have a database with few simple tables. Database is updated regularly
and than distributed to the clients, which only use it for reading. So,
concurrency is not an issue. But the database is already quite
Kees Nuyt wrote:
On Fri, 14 Aug 2009 07:24:31 -0700, Dmitri Priimak
prii...@stanford.edu wrote:
Hi.
I have a database with few simple tables. Database is updated regularly
and than distributed to the clients, which only use it for reading. So,
concurrency is not an issue. But the
Hi All,
I'm using SQLite3 with a Embedded Linux application. The problem I'm
facing is that there's a bug in the Linux kernel I'm using that the
open files counter isn't being decremented when a file descriptor is
closed. With that my application simply crashes after some time of
usage.
Because
I'm not sure if this an issue or not. make test failed with the following:
2 errors out of 40872 tests
Failures on these tests: rollback-2.3 tkt3457-1.4
All memory allocations freed - no leaks
Memory used: now 0 max 102680 max-size2800336
Page-cache used: now
On Fri, 14 Aug 2009 12:33:30 -0400, Angus March wrote:
I want my INSERT done right away, I just don't want it to be flushed
from the filesystem's write-behind cache until the kernel decides, not
when SQLite decides.
Did you mean you do want it to be flushed from the filesystem's
On Fri, 14 Aug 2009 11:00:53 -0700, Dmitri Priimak
prii...@stanford.edu wrote:
Kees Nuyt wrote:
On Fri, 14 Aug 2009 07:24:31 -0700, Dmitri Priimak
prii...@stanford.edu wrote:
Hi.
I have a database with few simple tables. Database is updated regularly
and than distributed to the clients,
Hi all,
I'm using the mozStorage implementation from Mozilla foundation, with
Javascript and XUL (for the UI) to build a business-type app.
I'm having this problem where I seem to get a lock of about 10 seconds
after a read operation on a table, before I can perform a write
operation on the
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Sebastian Arcus wrote:
The SQLite documentation talks about entire database locks by operations
of the order of milliseconds - 10 seconds seems a long way off.
There is a possible but unlikely cause for what you are seeing. In order to
ensure
Roger Binns wrote:
Sebastian Arcus wrote:
The SQLite documentation talks about entire database locks by operations
of the order of milliseconds - 10 seconds seems a long way off.
There is a possible but unlikely cause for what you are seeing. In order to
ensure the database
Ricardo Ayres Severo
severo.rica...@gmail.com wrote:
My question is if I would face any problem by opening the database
when my application starts and actually never closing it. I don't do
any access across threads.
You shouldn't have any problems with this. It's a pretty common access
Did an FTS3 update change how many negation operators (dash/-) can be used in
a
match statement?
For example, in sqlite3.dll version 3.5.7:
colname match 'tetons -bend -jackson -oxbow* -parks' works as expected; bend,
jackson, oxbow* and parks are all removed from the results.
but
With,
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Sebastian Arcus wrote:
Hi and thanks for the suggestion. I did as you advised and ran 'vmstat
1' in a terminal. Very little activity - maybe 20-40kb every 6-7 seconds
on the bo - pretty much nothing on bi. Also, zeros all around on so/si.
That
On Aug 15, 2009, at 9:32 AM, cscs-sql...@usa.net wrote:
Did an FTS3 update change how many negation operators (dash/-) can
be used in
a
match statement?
For example, in sqlite3.dll version 3.5.7:
colname match 'tetons -bend -jackson -oxbow* -parks' works as
expected; bend,
On Aug 15, 2009, at 2:14 AM, Ken wrote:
I'm not sure if this an issue or not. make test failed with the
following:
2 errors out of 40872 tests
Failures on these tests: rollback-2.3 tkt3457-1.4
All memory allocations freed - no leaks
Memory used: now 0 max 102680
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