Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!
The HDFS Way¶
You can use the hdfs dfs -du /path/to/table command
or hdfs dfs -count -q -v -h /path/to/table
to get the size of an HDFS path (or table).
However,
this only works if the cluster supports HDFS.
If a Spark cluster exposes only JDBC/ODBC APIs,
this method does not work.
Tips on NetworkX
Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!
Comparison of Collections in C++ and Java
Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!
Plain Old Array
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The length/size of array is as in the declaration. Each element of the array is initialized to the default value (null for object).
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Array in Java does …
Alternatives to Docker Containers
Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!
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LXD and Multipass are alternatives to Docker container. Docker is more lightweight than LXD which is more lightweight than Multipass (Docker < LXD < Multipass).
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Neither Docker nor LXD requires a CPU which …
Tips on Omegaconf
Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!
omegaconfcan parse command-line options too. However, unlikeargparseit does not enforce any constraint on command-line options.
Tips on Redash
Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!
Creating a new query runner (data source)
https://discuss.redash.io/t/creating-a-new-query-runner-data-source-in-redash/347