Adding an option for compaction strategy

.github/workflows/biggraphite.yml

@@ -11,7 +11,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest]
-        python-version: [ '3.x', 'pypy-3.6' ]
+        python-version: [ '3.9', 'pypy-3.6' ]
 
     env:
       JAVA: false # Default

CONFIGURATION.md

@@ -26,7 +26,8 @@ This is the main backend for BigGraphite and the one that should be used in prod
 - ```BG_CASSANDRA_META_WRITE_CONSISTENCY```: Data write consistency (default: ```ONE```)
 - ```BG_CASSANDRA_REPLICA_ID```: Identifier of this replica (default: ```0```)
 - ```BG_CASSANDRA_READ_ON_SAMPLING_RATE```: Sampling rate to update metadata field ```read_on```. Setting to ```0``` disables updating ````read-on```` (default: ```0.1```)
-- ```BG_CREATION_RATE_LIMIT```: Maximun number of new metadata to create per second (default: ```300```)
+- ```BG_CREATION_RATE_LIMIT```: Maximum number of new metadata to create per second (default: ```300```)
+- ```BG_CASSANDRA_COMPACTION_STRATEGY```: Sets compaction strategy decision, if not set, it will be set to```TimeWindowCompactionStrategy``` above cassandra 3.9 otherwise ```DateTieredCompactionStrategy``` (default: ```None```)
 
 ### SSL options