Can't request data on elasticsearch - php

Question

I am develloping graphs for connection logs of a website. Logs are parsed by logstash and served via elasticsearch.
I've develloped some graphs, nothing outstanding nor hard, but working.
Friday I started elasticsearch, and every script I wrote to get the data fail when I send the query.
My first thought was that I somehow modified the query, so I printed it and send it to elasticsearch (with plugin head). The query was fine and I have result.
I tried purging logs from logstash and elasticsearch, and restarting to feed them from known good data... Didn't fix anything.
Tried to see if the config has any error, used a backup of a working one, didn't work either.
As last hope, I tried to print PHP errors, and I do get an exception thrown from deep inside of elasticsearch:
Fatal error: Uncaught exception 'Guzzle\Http\Exception\ServerErrorResponseException' with message 'Server error response [status code] 500 [reason phrase]
Internal Server Error [url] http://localhost:9200/empreinte_index/mobile/_search' in /home/empreinte/vendor/guzzle/guzzle/src/Guzzle/Http/Exception/BadResponseException.php:43
Stack trace:
#0 /home/empreinte/vendor/guzzle/guzzle/src/Guzzle/Http/Message/Request.php(145): Guzzle\Http\Exception\BadResponseException::factory(Object(Guzzle\Http\Message\EntityEnclosingRequest), Object(Guzzle\Http\Message\Response))
#1 [internal function]: Guzzle\Http\Message\Request::onRequestError(Object(Guzzle\Common\Event), 'request.error', Object(Symfony\Component\EventDispatcher\EventDispatcher))
#2 /home/empreinte/vendor/symfony/event-dispatcher/Symfony/Component/EventDispatcher/EventDispatcher.php(164): call_user_func(Array, Object(Guzzle\Common\Event), 'request.error', Object(Symfony\Component\EventDispatcher\EventDispatcher))
#3 /home/empreinte/vendor/symfony/event-dispatcher/Symfony in /home/empreinte/vendor/elasticsearch/elasticsearch/src/Elasticsearch/Connections/GuzzleConnection.php on line 238
So this seems to comfort the idea that my codes are fine, but I can't find what did I done wrong, nor where to search.
Here is a minimal example of the script I use:
<?php
echo "Days";
require '/home/empreinte/vendor/autoload.php';
$client = new Elasticsearch\Client();
$Query['index'] = 'empreinte_index';
$Query['type'] = 'web';
echo ".";
//Building the timeframe needed. For brevity, using hardcoded data.
$timeframe = "{"from" : "1404165600", "to" : "1404252000" },{"from" : "1404252000", "to" : "1404338400" }";
echo ".";
$Query['body']='
{
"aggs" :
{
"temps" :
{
"range" :
{
"field" : "time",
"ranges" : ['.$timeframe.']
},
"aggs" :
{
"new_users" :
{
"terms" :
{
"field" : "is_newuser"
}
}
}
}
}
}';
echo ".";
$result = $client->search($Query);
//Parse the data to get them in usable form for graphs
echo "OK</br>";
?>
Which output "Days...", And the exception if PHP is set to display it.
(If requested, I'll post the config file and some logs).
How can I fix this? Where can I find a similar error from which I can find a fix? What does mean the error?

Answer 1

If you check the response it looks like a request problem: 'request.error'
When you construct the timeframe you use double quotes to construct the string but also within the string, this can be a problem as well.
I do not really think this is the problem, but try to loose the quotes around the longs representing time stamps.
Finally try to print the query and try the query in a tool like sense from elasticsearch or the head plugin or the kopf plugin.
Hope that helps