appsphere 15 - php, node.js and python deep dive

PHP, Node.js and Python Deep Dive Omed Habib, Product Marketing

Agenda

2015 PHP Node.js

Copyright © 2015 AppDynamics. All rights reserved. 2

Python Developer Trends 4.2 Sneak Peak

2015 IN REVIEW

4.1 for PHP

Cross App Correlation Backend Naming Rules HTTP Data Collectors PHP 5.6 API Functions


4.1 for Node.js

Error Detection Using HTTP Return Codes Node.js Backends Discovery & Grouping Rules Object Instance Tracking Node.js 0.12 API Functions


4.1 for Python

Distributed Transaction Correlation Cross-App Correlation Custom Match/Exclude Rules Linux & Mac OOTB WSGI Framework Support API Functions


PHP DEEP DIVE

Challenge

Multiple PHP “applications” on a single server


api.acme.com login.acme.com admin.acme.com www.acme.com


Before

n applications on the same server =

1 application in AppDynamics Copyright © 2015 AppDynamics. All rights reserved. 10

Today

n applications on the same server =

n applications in AppDynamics Copyright © 2015 AppDynamics. All rights reserved. 11

Before

appdynamics_agent.ini


Today

appdynamics_agent.ini

httpd.conf

.htaccess


More Flexibility with (same) Configs

agent.controller.hostName agent.controller.port agent.applicationName agent.tierName agent.nodeName agent.accountName agent.accountAccessKey


Two Separate Apps, Same Server

<VirtualHost *:80> DocumentRoot "/Library/WebServer/Documents" ServerName localhost ErrorLog "/private/var/log/apache2/error_log" CustomLog "/private/var/log/apache2/access_log" common php_value agent.applicationName FrontEnd php_value agent.tierName FrontTier php_value agent.nodeName front-node1 </VirtualHost>


<VirtualHost *:80> DocumentRoot "/var/www" ServerName test.local <Directory "/var/www"> Options FollowSymLinks Multiviews AllowOverride Options Require all granted </Directory> ErrorLog "/private/var/log/apache2/error_log" CustomLog "/private/var/log/apache2/access_log" common php_value agent.applicationName API php_value agent.tierName APItier php_value agent.nodeName api-node1 </VirtualHost>

Multi-Node Support for PHP

Few points to consider…

•  Available for beta after AppSphere •  4.2 Controller is recommended •  All apps will share same proxy on server •  Licenses will stay same (per node) until adjusted •  Currently in beta, hoping to GA in 4.2 •  Proxy functionality will be replaced with LibAgent in 2016


NODE.JS DEEP DIVE

Challenge

Heavy Memory Consumption by the Node.js Application


Memory Leak Diagnostics

V8 Manages Memory

Pro

•  You don’t have to worry about it.

•  You don’t have to write code to manage it.

Con

•  You don’t have control over it.

•  You have to find a way to find your memory leak.


“I can actually say we've had no outages in production on a Node.js cluster, since we've been porting over, and I can credit a large part of that due to the monitoring of AppDynamics.” Stace Baal, Director of Engineering @ eHarmony


PYTHON DEEP DIVE

Challenge

A Python Application Executing Jobs in an Infinite While Loop


The Loop

setup() while (true):

do_work() teardown()


Python Agent API Functions


Functions made available to the application code to

further tailor your APM solution.


from appdynamics.agent import api as appd setup() while (true):

bt_handle = appd.start_bt('do work’) try: do_work() except Exception as exc: raise finally: appd.end_bt(bt_handle, exc)

teardown()

Custom Exit Calls


start_exit_call() …

end_exit_call()

API Functions


•  init(environ=None, timeout_ms=NO_TIMEOUT) •  shutdown(timeout_ms=None) •  start_bt(name, correlation_header=None) •  end_bt(bt_handle, exc=None) •  add_snapshot_data(bt_handle, key, value) •  get_active_bt_handle(request) •  start_exit_call(bt_handle, exit_type, display_name,

identifying_properties, optional_properties=None) •  end_exit_call(exit_call_handle, exc=None) •  make_correlation_header(bt_handle, exit_call_handle) •  bt(name, correlation_header=None) •  exit_call(bt_handle, exit_type, display_name, identifying_properties,

optional_properties=None)


By The Way...

API Functions Are Available Today For

“The new Python agent by AppDynamics brought the visibility that we’ve come to expect from the AppDynamics Platform. It didn't take long for us to qualify that this was the solution for our deployments of over 3,000 Python instances” Albert Kemner, Principal Engineer @ Gannett


DEVELOPER TRENDS

WHAT’S COMING IN 4.2?

4.2 Roadmap Goal

•  Multi-Node Support •  SELinux •  NuSOAP Exit Calls •  PostgreSQL


•  Node.js 4.0 & 5.0 •  Allocation Snapshots •  Transaction Analytics •  Heroku Support •  Windows Support

•  EUM Correlation •  API Functions •  Data Collectors •  MongoDB

Thank You