linux-debugging
Debugging in Linux! Who is the guy talking? What’s Debugging in DevOps? Usual Methods Usual things Tools strace uptime dstat top/htop/atop perf opensnoop/ »
checking ulimit
To check ulimit (which generally causes too many files open error), don’t use ulimit -n ulimit of each process varies and when you issue the »
Edit file vi, not opened by sudo
Opened a file in vi without sudo. Edited some stuff, realized you can't save it. You close the file, open with sudo, redo the edits. How »
Debugging git slowness
Here's the command to understand where is it running slow and what's happening at each step. set -x; GIT_TRACE=2 GIT_CURL_VERBOSE=2 GIT_ »
Deleting a node from Chef
On workstation knife node delete --yes NODENAME knife client delete --yes NODENAME On client yum -y remove chef rm -rf /var/chef rm -rf /etc/chef »
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