Zend_Db_Profiler not logging db connection time? - zend-framework

Question

Following the sample code on http://framework.zend.com/manual/en/zend.db.profiler.html I have set up db profiling of my Zend Framework app.
application.ini:
db.profiler.enabled = true
View Helper:
$totalTime = $profiler->getTotalElapsedSecs();
$queryCount = $profiler->getTotalNumQueries();
$longestTime = 0;
$longestQuery = null;
foreach ($profiler->getQueryProfiles() as $query) {
if ($query->getElapsedSecs() > $longestTime) {
$longestTime = $query->getElapsedSecs();
$longestQuery = $query->getQuery();
}
}
echo 'Executed ' . $queryCount . ' queries in ' . $totalTime . ' seconds' . "\n";
echo 'Average query length: ' . $totalTime / $queryCount . ' seconds' . "\n";
echo 'Queries per second: ' . $queryCount / $totalTime . "\n";
echo 'Longest query length: ' . $longestTime . "\n";
echo "Longest query: \n" . $longestQuery . "\n";
It works fine for select/insert/update/delete queries.
But I cannot find anyway to get the profiler to show the time taken to initiate the actual db connection, despite the documenation implying that it does log this.
I suspect that Zend_Db simply does not log the connection to the db with the profiler.
Does anyone know what is going on here?
I am using the Oracle database adapter, and ZF 1.10.1
UPDATE:
I understand it is possible to filter the profiler output, such that it will only show certain query types, e.g. select/insert/update. There also appears to be an option to filter just the connection records:
$profiler->setFilterQueryType(Zend_Db_Profiler::CONNECT);
However, my problem is that the profiler is not logging the connections to begin with, so this filter does nothing.
I know this for a fact, because if I print the profiler object, it contains data for many different queries - but no data for the connection queries:
print_r($profiler);
//output
Zend_Db_Profiler Object
(
[_queryProfiles:protected] => Array
(
[0] => Zend_Db_Profiler_Query Object
(
[_query:protected] => select * from table1
[_queryType:protected] => 32
[_startedMicrotime:protected] => 1268104035.3465
[_endedMicrotime:protected] => 1268104035.3855
[_boundParams:protected] => Array
(
)
)
[1] => Zend_Db_Profiler_Query Object
(
[_query:protected] => select * from table2
[_queryType:protected] => 32
[_startedMicrotime:protected] => 1268104035.3882
[_endedMicrotime:protected] => 1268104035.419
[_boundParams:protected] => Array
(
)
)
)
[_enabled:protected] => 1
[_filterElapsedSecs:protected] =>
[_filterTypes:protected] =>
)
Am I doing something wrong - or has logging of connections just not been added to Zend Framework yet?

Answer 1

The profiler 'bundles' connection and other operations in with the general queries.
There's three ways you might examine the connection specifically:
Set a filter on the profiler during setup:
$profiler->setFilterQueryType(**Zend_Db_Profiler::CONNECT**);
Then the resultant profiles will only include 'connect' operations.
Specify a query type when you retrieve the Query Profiles:
$profiles = $profiler->getQueryProfiles(**Zend_Db_Profiler::CONNECT**);
Examine the query objects directly during the iteration:
foreach($profiler->getQueryProfiles() as $query) {
if ($query->getQueryType() == Zend_Db_Profiler::CONNECT &&
$query->getElapsedSecs() > $longestConnectionTime) {
$longestConnectionTime = $query->getElapsedSecs();
}
}
You'll not find great detail in there, it's logged just as a 'connect' operation along with the time taken.