Dan

Dan has asked 16 questions and find answers to 24 problems.

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About

Currently a lead in EC2 virtual networking.
Former lead on network-attached block storage for GCE (a.k.a. "Persistent Disk").
Former OpenZFS developer.
Before that, built infrastructure for an enterprise Java app.

Dan questions

ensuring one method's call stack always includes another method in Java
InputStream to Channel for Selector
postmortem deadlock debugging in PostgreSQL
java agent with jvmti load at runtime, unload from within
linker option to ignore unused dependencies
how to write cross-version/platform Linux kernel modules?
avoiding overuse of consensus protocols in a distributed system
Aliases to mutable thread-local data not allowed
duck typing in D
dtruss fails on ps on OS X 10.11

Dan answers

How does a debugger set breakpoints if the image is in read-only memory?
Access checksum of zfs dataset via cli
Dtrace script that returns %CPU, %Memory and network in/out aggregated by zone
How to do profiling with QEMU?
StringTemplate remove < > as delimiters
Polling vs Interrupt
How does Instruments collect data from iOS without DTrace being available?
ZFS filesystem vs ZFS pool
"FATAL: the database system is shutting down" while creating connection to PostgreSQL
Removing disk from zfs pool permanently