Hi,
Thanks for posting this, it saved me quite a few hours.
On Fri, Dec 16, 2005 at 04:23:36PM -0500, Jim Washington wrote:
def isConnected(self):
try:
self._v_connection.ping()
except:
# not connected or ping did not restore MySQL connection
Jim Washington wrote at 2005-12-16 16:23 -0500:
...
What seems to work for me now is the following as
mysqldbda.adapter.MySQLdbAdapter.isConnected()
def isConnected(self):
try:
self._v_connection.ping()
except:
# not connected or ping did not restore
Jim Washington wrote at 2005-12-13 21:40 -0500:
...
Now, looking closer at the code, a ping like this might be not too bad,
because isConnected() is only called when a connection is requested, not
for every SQL statement executed. So, it might not be so onerous as
originally thought. Still
Dieter Maurer wrote:
Jim Washington wrote at 2005-12-13 21:40 -0500:
...
Now, looking closer at the code, a ping like this might be not too bad,
because isConnected() is only called when a connection is requested, not
for every SQL statement executed. So, it might not be so onerous as
jürgen Kartnaller wrote:
MySQL::Ping will automatically reopen a closed connection in a way where
the existing connection object can still be used.
If MySQL::Ping fails something really bad is going on.
To reduce the number of ping's in my application I used a timer which
was tested before
jürgen Kartnaller wrote:
Without going much deeper into the way zope uses database connections.
Wouldn't MySQL:Ping solve the reconnect Problem.
That's what I used in my old C++ projects.
Some kind of ensureConnected at the right place.
Jürgen
Thanks! I'll look into it.
-Jim Washington
Jim Washington wrote:
Spelunking a bit in the code,
zope.app.rdb.ZopeDatabaseAdapter.isConnected() looks at whether
_v_connection is present, not whether the connection is actually alive.
If we fix this here, isConnected() perhaps should handle the case where
the connection might be reaped
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Florent Guillaume wrote:
Jim Washington wrote:
Spelunking a bit in the code,
zope.app.rdb.ZopeDatabaseAdapter.isConnected() looks at whether
_v_connection is present, not whether the connection is actually
alive. If we fix this here,
Jim Washington wrote:
Florent Guillaume wrote:
Jim Washington wrote:
Spelunking a bit in the code,
zope.app.rdb.ZopeDatabaseAdapter.isConnected() looks at whether
_v_connection is present, not whether the connection is actually
alive. If we fix this here, isConnected() perhaps should
