Storage
OpenTSDB currently supports Apache HBase as its main storage backend. As of version 2.3, OpenTSDB also works with Google's Bigtable in the cloud (fitting as OpenTSDB is descended from a monitoring system at Google and HBase is descended from HBase). Select the HBase link below to learn about the storage schema or Bigtable to find the configs and setup for use in the cloud.
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Licensed under the GNU LGPLv2.1+ and GPLv3+ licenses.
http://opentsdb.net/docs/build/html/user_guide/backends/index.html