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Showing posts from December, 2013

cassandra sstable version in filename

Look in the filename of the sstable, you'll see some letters between hyphens/dashes, ie "-"; these are the version of your sstable, see below for possible values.

See: https://github.com/QwertyManiac/cassandra-cdh4/blob/master/src/java/org/apache/cassandra/io/sstable/Descriptor.java

Btw, cassandra "support" loves to send you to look at code, so download the code and get familiar with the basic structure (somehow).



public static final Version LEGACY = new Version("a"); // "pre-history" // b (0.7.0): added version to sstable filenames // c (0.7.0): bloom filter component computes hashes over raw key bytes instead of strings // d (0.7.0): row size in data component becomes a long instead of int // e (0.7.0): stores undecorated keys in data and index components // f (0.7.0): switched bloom filter implementations in data component // g (0.8): tracks flushed-at context in metadata component …

Mac spotlight equivalent for Openbox: dmenu_run

apt-get install suckless-tools dmenu_run

aws ec2 cli filter by tag name and value

aws ec2 describe-instances --filter Name=tag:Name,Values=ADS-prod-ads The horrible syntax of "and" filters:
 aws ec2 describe-instances --filter '{"Name":"tag:backup","Values":["yes"]}' '{"Name":"instance-state-name","Values":["running"]}' non-breakout view below aws ec2 describe-instances --filter '{"Name":"tag:backup","Values":["yes"]}' '{"Name":"instance-state-name","Values":["running"]}'