timf

Hiring!

The Dell Cloud Manager engineering team is growing.

In this gist, I want to give you an idea of:

• Who we are looking for
• What we work on

timf

I asked my email-pal: "UNIX or Windoze?". He replied "UNIX". I said "Ah...me
too!".

I asked my email-pal: "Linux or AIX?". He said "Linux, of course". I said
"Me too".

I asked him: "Emacs or vi". He replied "Emacs". I said "Me too. Small world."

I asked him: "GNU Emacs or XEmacs?", and he said "GNU Emacs". I said "oh, me
too."

timf

See the more recent gist.

Hiring!

The Dell Cloud Manager engineering team is growing. We're looking for seven new software developers at many different experience levels.

In this gist, I want to give you an idea of:

timf

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timf

#!/bin/bash
export MYSQL_PASS=

function mysql_search_schema_usage(){
  cat << EOF
  usage: $0 <terms> [database]
EOF
}

function mysql_search_schema(){

timf

• Forecasting for Cloud computing on-demand resources based on pattern matching
• Auto-scaling Techniques for Elastic Applications in Cloud Environments
• Auto-Scaling Model for Cloud Computing System
• Rebalancing in a Multi-Cloud Environment
• Infrastructure Outsourcing in Multi-Cloud Environment
• Workload Classification for Efficient Auto-Scaling of Cloud Resources
• Dynamically Scaling Applications in the Cloud
• [Optimal Autoscaling in the IaaS Cloud](http://www.cse.yorku.ca/~hamoun/p

timf

#!/bin/bash
 
echoerr() { echo "$@" 1>&2; }
 
if [ "X" == "X$1" ]; then
  echoerr "error: requires argument: path to .tiff file"
  exit 1
fi
 
exe=`which sips`

timf

curl http://whatismyip.akamai.com

timf

(~)$ for x in `seq 5`; do echo $x; done | xargs ls
ls: 1: No such file or directory
ls: 2: No such file or directory
ls: 3: No such file or directory
ls: 4: No such file or directory
ls: 5: No such file or directory

(~)$ for x in `seq 5`; do echo $x; done > tmpfile
(~)$ cat tmpfile 
1

timf

Orien is correct, it is the fork() system call triggered by ProcessBuilder or Runtime.exec or other means of the JVM executing an external process (e.g. another JVM running ant, a git command, etc.).

There have been some posts on the Jenkins mailing lists about this: Cannot run program "git" ... error=12, Cannot allocate memory

There is a nice description of the issue on the SCons dev list: fork()+exec() vs posix_spawn()

There is a long standing JVM bug report with solutions: Use posix_spawn, not fork, on S10 to avoid swap exhaustion. But I'm not sure if this actually made it into JDK7 as the comments suggest was the plan.

In summary, on Unix-like systems, when one process (e.g. the JVM) needs to launch another process (e.g. git) a system call is made to