On Mon, Oct 10, 2011 at 8:09 AM, Craig Ringer ring...@ringerc.id.au wrote:
On 10/07/2011 01:21 AM, Sean Laurent wrote:
Within a few seconds of the backup, our application servers start
throwing exceptions that indicate the database connection was closed.
Meanwhile, Postgres still shows the
On Fri, Oct 7, 2011 at 12:36 AM, Tom Lane t...@sss.pgh.pa.us wrote:
Sean Laurent s...@studyblue.com writes:
We've been running into a particularly strange problem that I'm trying to
better understand. The super short version is that our application servers
lose their connection to the
On Tue, Oct 11, 2011 at 12:04 AM, Craig Ringer ring...@ringerc.id.au wrote:
On 11/10/11 12:48, John R Pierce wrote:
On 10/10/11 7:44 PM, Craig Ringer wrote:
If blocking writes causes a server failure that persists once writes
have been unblocked, that's a bug IMO. You might have a bit of a
On Tue, Oct 11, 2011 at 5:00 PM, Sean Laurent s...@studyblue.com wrote:
As much as I would like Postgres to withstand a 2 second outage, I
don't honestly care. I'd just like to figure out whether I'm looking
at something that's actually a problem or if I should be looking
elsewhere for the
On Tue, Oct 11, 2011 at 8:50 PM, Scott Marlowe scott.marl...@gmail.com wrote:
On Tue, Oct 11, 2011 at 5:00 PM, Sean Laurent s...@studyblue.com wrote:
As much as I would like Postgres to withstand a 2 second outage, I
don't honestly care. I'd just like to figure out whether I'm looking
at
On 10/07/2011 01:21 AM, Sean Laurent wrote:
Within a few seconds of the backup, our application servers start
throwing exceptions that indicate the database connection was closed.
Meanwhile, Postgres still shows the connections and we start seeing a
really high number (for us) of locks in the
On 10/06/11 10:21 AM, Sean Laurent wrote:
We've been running into a particularly strange problem that I'm trying
to better understand. The super short version is that our application
servers lose their connection to the database when I run a backup
during periods of higher load and fail to
On 10/10/11 23:29, John R Pierce wrote:
While xfs_freeze is in effect, all writes are blocked. This is NOT
what you want to do here, postgres does NOT expect you to take an
atomic snapshot of the database files, rather, by bracketing your
backup with pg_start_backup and pg_stop_backup, it
On 10/10/11 7:44 PM, Craig Ringer wrote:
If blocking writes causes a server failure that persists once writes
have been unblocked, that's a bug IMO. You might have a bit of a backlog
of writes to clear, but after that all should be well, and if it isn't
then something needs fixing.
the process
On 11/10/11 12:48, John R Pierce wrote:
On 10/10/11 7:44 PM, Craig Ringer wrote:
If blocking writes causes a server failure that persists once writes
have been unblocked, that's a bug IMO. You might have a bit of a backlog
of writes to clear, but after that all should be well, and if it isn't
We've been running into a particularly strange problem that I'm trying to
better understand. The super short version is that our application servers
lose their connection to the database when I run a backup during periods of
higher load and fail to reconnect.
Here's an overview of the setup:
-
Sean Laurent s...@studyblue.com writes:
We've been running into a particularly strange problem that I'm trying to
better understand. The super short version is that our application servers
lose their connection to the database when I run a backup during periods of
higher load and fail to
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