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@nkuln
nkuln / cxa_throw_replace_backtrace.c
Created March 12, 2012 09:18
Override __cxa_throw and prints backtrace when exception is thrown (Linux)
#include <dlfcn.h>
#include <execinfo.h>
typedef void (*cxa_throw_type)(void *, void *, void (*) (void *));
cxa_throw_type orig_cxa_throw = 0;
void load_orig_throw_code()
{
orig_cxa_throw = (cxa_throw_type) dlsym(RTLD_NEXT, "__cxa_throw");
}
@mlehman
mlehman / MultipleOutputsExample.scala
Last active April 11, 2022 06:54
Hadoop MultipleOutputs on Spark Example
/* Example using MultipleOutputs to write a Spark RDD to multiples files.
Based on saveAsNewAPIHadoopFile implemented in org.apache.spark.rdd.PairRDDFunctions, org.apache.hadoop.mapreduce.SparkHadoopMapReduceUtil.
val values = sc.parallelize(List(
("fruit/items", "apple"),
("vegetable/items", "broccoli"),
("fruit/items", "pear"),
("fruit/items", "peach"),
("vegetable/items", "celery"),
("vegetable/items", "spinach")
@craigminihan
craigminihan / gist:b23c06afd9073ec32e0c
Last active September 21, 2023 12:47
Build GCC 4.9.2 for C/C++ on CentOS 7
sudo yum install libmpc-devel mpfr-devel gmp-devel
cd ~/Downloads
curl ftp://ftp.mirrorservice.org/sites/sourceware.org/pub/gcc/releases/gcc-4.9.2/gcc-4.9.2.tar.bz2 -O
tar xvfj gcc-4.9.2.tar.bz2
cd gcc-4.9.2
./configure --disable-multilib --enable-languages=c,c++
make -j 4
make install
@liuzhengyang
liuzhengyang / DirectMemorySize.java
Created March 21, 2017 13:54
An Serviceability-Agent based tool to see stats of NIO direct memory for JDK8
import java.lang.reflect.*;
import java.lang.reflect.Method;
import java.util.*;
import sun.jvm.hotspot.memory.*;
import sun.jvm.hotspot.oops.*;
import sun.jvm.hotspot.debugger.*;
import sun.jvm.hotspot.runtime.*;
import sun.jvm.hotspot.tools.*;
import sun.jvm.hotspot.utilities.*;