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VoltDB Operations Manual

This is an example of a document that a VoltDB customer or partner might write to document specific processes and commands for common operations with VoltDB.

Hardware & OS

For our VoltDB cluster, use servers with the following specs:
(Note: this is only an example, but you should document the exact hardware used for the installation, and use identical hardware if nodes to the cluster).

Amazon EC2 Example:

In production, we use c3.2xlarge nodes with 8 hyperthreads, 15GB of RAM

How to get a stack trace for each thread in a running python script

Sometimes a python script will simply hang forever with no indication of where things went wrong. Perhaps it's polling a service that will never return a value that allows the program to move forward. Here's a way to see where the program is currently stuck.

Install gdb and pyrasite

Install gdb.

# Redhat, CentOS, etc

	//#define DEBUG_THREADING


	using UnityEngine;
	using System.Collections;
	using System.Threading;
	using System.Reflection;


	public delegate IEnumerator MonitorCoroutine<T> (CoroutineData<T> data);