I am currently extracting CloudWatch metrics statistics with the aws php sdk.
Unfortunately the getMetricStatistics method is returning unsorted results. I wonder why it is not sorted by Timestamp ASC. Does anyone know how to get sorted results from Cloudwatch?
my code
$result = $this->client->getMetricStatistics(array(
'Namespace' => 'My.Namespace',
'MetricName' => 'my-metric',
'StartTime' => strtotime('-1 days'),
'EndTime' => strtotime('now'),
'Period' => 300,
'Statistics' => array('Average'),
));
and the result
array (size=7)
0 =>
array (size=3)
'Timestamp' => string '2014-04-16T10:53:00Z' (length=20)
'Unit' => string 'Count' (length=5)
'Average' => string '9.998594711316002' (length=17)
1 =>
array (size=3)
'Timestamp' => string '2014-04-16T11:43:00Z' (length=20)
'Unit' => string 'Count' (length=5)
'Average' => string '0.7908148450858722' (length=18)
2 =>
array (size=3)
'Timestamp' => string '2014-04-16T11:08:00Z' (length=20)
'Unit' => string 'Count' (length=5)
'Average' => string '5.402251656252796' (length=17)
3 =>
array (size=3)
'Timestamp' => string '2014-04-16T11:03:00Z' (length=20)
'Unit' => string 'Count' (length=5)
'Average' => string '8.958888493053081' (length=17)
Thanks for your help!
J.
UPDATE
I still did not manage to get sorted results directly from the method call. So I used usort as suggested by @Svenskunganka
usort($result['Datapoints'], function($a, $b) {
if($a['Timestamp'] == $b['Timestamp']) {
return 0;
}
return ($a['Timestamp'] < $b['Timestamp']) ? -1 : 1;
});
I am still looking for the perfect way to get sorted results. If anyone has a clue, I would be really thankful.