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Tyler Hobbs thobbs

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thobbs / .gdbinit
Created October 29, 2013 19:51
A version of .gdbinit that provides a pystack and pystackv command that does not hang forever. The problem appeared to be an infinite loop, so to fix it I just added a basic counter that breaks the while loop after 200 iterations.
# -*- ksh -*-
#
# If you use the GNU debugger gdb to debug the Python C runtime, you
# might find some of the following commands useful. Copy this to your
# ~/.gdbinit file and it'll get loaded into gdb automatically when you
# start it up. Then, at the gdb prompt you can do things like:
#
# (gdb) pyo apyobjectptr
# <module 'foobar' (built-in)>
# refcounts: 1
@thobbs
thobbs / example.py
Created November 6, 2013 15:36
Demonstration of timestamp and datetime behaviors for simple and prepared statements.
#!/usr/bin/env python
import logging
log = logging.getLogger()
log.setLevel('INFO')
handler = logging.StreamHandler()
handler.setFormatter(logging.Formatter("%(asctime)s [%(levelname)s] %(name)s: %(message)s"))
log.addHandler(handler)
@thobbs
thobbs / example-utf8.py
Created November 26, 2013 17:02
UTF-8 version of example.py
#!/usr/bin/env python
# -*- coding: utf-8 -*-
import logging
log = logging.getLogger()
log.setLevel('DEBUG')
handler = logging.StreamHandler()
handler.setFormatter(logging.Formatter("%(asctime)s [%(levelname)s] %(name)s: %(message)s"))
log.addHandler(handler)
@thobbs
thobbs / multiproc.py
Created March 7, 2014 19:44
Multiprocess Example
#!/usr/bin/env python
import logging
log = logging.getLogger()
log.setLevel('DEBUG')
handler = logging.StreamHandler()
handler.setFormatter(logging.Formatter("%(asctime)s [%(levelname)s] %(name)s: %(message)s"))
log.addHandler(handler)
@thobbs
thobbs / multiproc.py
Last active August 29, 2015 13:57 — forked from arodrime/Datastax Python priver with multiprocessing.Pool
#!/usr/bin/env python
import logging
log = logging.getLogger()
log.setLevel('INFO')
handler = logging.StreamHandler()
handler.setFormatter(logging.Formatter("%(asctime)s [%(levelname)s] %(name)s: %(message)s"))
log.addHandler(handler)
@thobbs
thobbs / cassandra_leaks.py
Created March 18, 2014 18:45
Memory Leak Repro
import resource
import gc
from guppy import hpy
def print_heap(hp):
h = hp.heap()
strs = []
strs.extend(str(h).split('\n')[1:-1])
for i in range(10):
@thobbs
thobbs / chaos.sh
Created July 22, 2014 21:11
chaos.sh
#! /bin/bash
while true; do
echo "stopping node1"
./ccm node1 stop
sleep 1
echo "starting node1"
./ccm node1 start
@thobbs
thobbs / jiralinks.py
Last active November 20, 2015 08:34
Script to generate table of branch and test links for the Cassandra JIRA
@thobbs
thobbs / reflection.clj
Created July 8, 2016 01:44
Code for partial reflections
(let [; pick random points for a "line of reflection"
reflection-start-x (random (w 0.0) (w 0.5))
reflection-start-y (random (h 0.5) (h 1.0))
reflection-end-x (random (w 0.5) (w 1.0))
reflection-end-y (random (h 0.0) (h 0.5))
x-spread (- reflection-end-x reflection-start-x)
y-spread (- reflection-end-y reflection-start-y)
max-spread (max x-spread y-spread)
@thobbs
thobbs / strip_border.py
Created August 28, 2018 05:46
Strip the border from an SVG for plotting through Inkscape
import sys
import lxml.etree as le
def main(filename):
with open(filename, 'r+b') as f:
doc = le.parse(f)
# strip border strokes
for elem in doc.xpath('//*[attribute::style]'):
if 'stroke:none' in elem.attrib['style']: