Stuff Goes Bad: Erlang in Anger
Free
Description
Contents
Reviews
Language
English
ISBN
Unknown
Introduction
I Writing Applications
How to Dive into a Code Base
Raw Erlang
OTP Applications
Library Applications
Regular Applications
Dependencies
OTP Releases
Exercises
Building Open Source Erlang Software
Project Structure
OTP Applications
OTP Releases
Supervisors and start_link Semantics
It's About the Guarantees
Side Effects
Example: Initializing without guaranteeing connections
In a nutshell
Application Strategies
Exercises
Planning for Overload
Common Overload Sources
error_logger Explodes
Locks and Blocking Operations
Unexpected Messages
Restricting Input
How Long Should a Time Out Be
Asking For Permission
What Users See
Discarding Data
Random Drop
Queue Buffers
Stack Buffers
Time-Sensitive Buffers
Dealing With Constant Overload
How Do You Drop
Exercises
II Diagnosing Applications
Connecting to Remote Nodes
Job Control Mode
Remsh
SSH Daemon
Named Pipes
Exercises
Runtime Metrics
Global View
Memory
CPU
Processes
Ports
Digging In
Processes
OTP Processes
Ports
Exercises
Reading Crash Dumps
General View
Full Mailboxes
Too Many (or too few) Processes
Too Many Ports
Can't Allocate Memory
Exercises
Memory Leaks
Common Sources of Leaks
Atom
Binary
Code
ETS
Processes
Nothing in Particular
Binaries
Detecting Leaks
Fixing Leaks
Memory Fragmentation
Finding Fragmentation
Erlang's Memory Model
Fixing Memory Fragmentation with a Different Allocation Strategy
Exercises
CPU and Scheduler Hogs
Profiling and Reduction Counts
System Monitors
Suspended Ports
Exercises
Tracing
Tracing Principles
Tracing with Recon
Example Sessions
Exercises
Conclusion
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