using Cassandra's CounterColumnType to maintain counters about the number of rows in 'available' and 'tasks'.  This gives O(1) lookups instead of scanning the table to count it.
using Cassandra's CounterColumnType to maintain counters about the
number of rows in 'available' and 'tasks'.  This gives O(1) lookups
instead of scanning the table to count it.

The documentation on how to create COUNTER_COLUMN_TYPE columns using
pycassa is literally missing.  Not there.  Had to read source and
figure it out by trial and error!

trec-kba/streamcorpus-pipeline,trec-kba/streamcorpus-pipeline,trec-kba/streamcorpus-pipeline