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Full Discussion: Debugging Our Computer Science Trivia Feature
The Lounge What is on Your Mind? Debugging Our Computer Science Trivia Feature Post 303040611 by Neo on Friday 1st of November 2019 11:12:36 PM
Old 11-02-2019
Looking at the log files and inside the DB this morning, I have added some additional string filtering for questions, for example:

Code:
<?php
$question =  filter_var($question, FILTER_SANITIZE_STRING,FILTER_FLAG_STRIP_HIGH);

because I was seeing some unprintable chars in the JSON response to the AJAX request, so hopefully, stripping out these symbols will help.

Status Update:



Total Interactions in DB (questions answered so far):

Code:
mysql> select count(*) from neo_trivia_scoreboard;
+----------+
| count(*) |
+----------+
|     3540 |
+----------+
1 row in set (0.00 sec)

Total question in DB:

Code:
mysql> select count(*) from neo_open_trivia;
+----------+
| count(*) |
+----------+
|      629 |
+----------+
1 row in set (0.00 sec)

If anyone sees any "strangeness" please take a screen shot and post it, and if possible please look into your web dev console and post any the XHR response to the API query and any JS errors in the JS console (if you know how to do it, if not just post the screen shots). I hope filtering the string will solve this tiny, occasional bug.

Top 20 interactions by country:


Code:
mysql> select country, count(country) from neo_trivia_scoreboard  group by country order by count(country) desc limit 20;
+---------+----------------+
| country | count(country) |
+---------+----------------+
| US      |            874 |
| IN      |            418 |
| TH      |            411 |  <---- my testing
| GB      |            185 |
| DE      |            131 |
| NL      |            115 |
| IT      |            111 |
| PH      |            109 |
| BR      |            105 |
| FR      |             93 |
| AU      |             82 |
| BG      |             81 |
| CA      |             79 |
| RU      |             73 |
| ES      |             60 |
| PL      |             58 |
| SE      |             48 |
| XX      |             47 |
| CH      |             44 |
| MX      |             33 |
+---------+----------------+
20 rows in set (0.00 sec)

 

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LEARN ABOUT CENTOS

pmdamysql

PMDAMYSQL(1)						       Performance Co-Pilot						      PMDAMYSQL(1)

NAME

       pmdamysql - MySQL database PMDA

DESCRIPTION

       pmdamysql is a Performance Co-Pilot PMDA which extracts live performance data from a running MySQL database.

INSTALLATION

       pmdamysql uses a configuration file from (in this order):

       o   /etc/pcpdbi.conf

       o   $PCP_PMDAS_DIR/mysql/mysql.conf

       This file can contain overridden values (Perl code) for the settings listed at the start of pmdamysql.pl, namely:

       o   database name (see DBI(3) for details)

       o   database user name

       o   database pass word

       Once this is setup, you can access the names and values for the mysql performance metrics by doing the following as root:

	       # cd $PCP_PMDAS_DIR/mysql
	       # ./Install

       If you want to undo the installation, do the following as root:

	       # cd $PCP_PMDAS_DIR/mysql
	       # ./Remove

       pmdamysql is launched by pmcd(1) and should never be executed directly.	The Install and Remove scripts notify pmcd(1) when the agent is
       installed or removed.

Binary Status values in text
       Some of the status values are in the form of YES/NO or ON/OFF.

       Since these cannot be intepreted by tools like PMIE, they have been duplicated with a _num extension and the values of 1 (YES/ON) or 0
       (NO/OFF).

   Eg:
       o   mysql.slave_status.slave_io_running

       o   mysql.slave_status.slave_io_running_num

FILES

       /etc/pcpdbi.conf
	   configuration file for all PCP database monitors

       $PCP_PMDAS_DIR/mysql/mysql.conf
	   configuration file for pmdamysql

       $PCP_PMDAS_DIR/mysql/Install
	   installation script for the pmdamysql agent

       $PCP_PMDAS_DIR/mysql/Remove
	   undo installation script for the pmdamysql agent

       $PCP_LOG_DIR/pmcd/mysql.log
	   default log file for error messages from pmdamysql

SEE ALSO

       pmcd(1), pmdadbping.pl(1) and DBI(3).  # vi: sw=4 ts=4 et:

3.8.10							       Performance Co-Pilot						      PMDAMYSQL(1)
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