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Copyright BigchainDB GmbH and BigchainDB contributors SPDX-License-Identifier: (Apache-2.0 AND CC-BY-4.0) Code is Apache-2.0 and docs are CC-BY-4.0 --->
Log rotation for a BigchainDB node
Each BigchainDB node comprises of 3 main services:
- BigchainDB server
- Tendermint
- MongoDB
To run a BigchainDB test network/dev node, that is expected to run for relatively longer periods of time, we need to consider the log rotation of these services i.e. we do not want the logs taking up large amounts of storage and making the node unresponsive or get into bad state.
Log rotation for MongoDB
Currently, we leave the log rotation of MongoDB to the BigchainDB administrator. For more notes on MongoDB log rotation please refer to MongoDB docs.
Log rotation for BigchainDB
Log rotation is baked into BigchainDB server using the logging module. If you followed the How to Set Up a BigchainDB Network guide. BigchainDB processes are monitored using Monit. BigchainDB server logs information into the following files:
bigchaindb.logbigchaindb-errors.logbigchaindb-benchmark.log
Default location for these log files is: $HOME/.bigchaindb-monit/logs
The logs for BigchainDB server are rotated when any of the above mentioned file exceeds 209715200 bytes.
Log rotation for Tendermint
Log rotation for Tendermint is handled by Monit. When we start BigchainDB and Tendermint using How to Set Up a BigchainDB Network guide.
$ monit -d 1
Monit monitors both Tendermint and BigchainDB processes as well as the Tendermint log files, tendermint.out.log and tendermint.err.log. Default location for these log files is:
$HOME/.bigchaindb-monit/logs.
Tendermint logs are rotated if any of the above mentioned log files exceeds 200 MB in size.