lotus/documentation/en/environment-vars.md

Lotus Environment Variables

Building

Common

The environment variables are common across most lotus binaries.

LOTUS_FD_MAX

Sets the file descriptor limit for the process. This should be set high (8192 or higher) if you ever notice 'too many open file descriptor' errors.

LOTUS_JAEGER

This can be set to enable jaeger trace reporting. The value should be the url of the jaeger trace collector, the default for most jaeger setups should be localhost:6831.

LOTUS_DEV

If set to a non-empty value, certain parts of the application will print more verbose information to aid in development of the software. Not recommended for end users.

Lotus Daemon

LOTUS_PATH

Sets the location for the lotus daemon on-disk repo. If left empty, this defaults to ~/.lotus.

LOTUS_SKIP_GENESIS_CHECK

Can be set to _yes_ if you wish to run a lotus network with a different genesis than the default one built into your lotus binary.

LOTUS_CHAIN_TIPSET_CACHE

Sets the cache size for the chainstore tipset cache. The default value is 8192, but if your usage of the lotus API involves frequent arbitrary tipset lookups, you may want to increase this.

LOTUS_CHAIN_INDEX_CACHE

Sets the cache size for the chainstore epoch index cache. The default value is 32768, but if your usage of the lotus API involves frequent deep chain lookups for block heights that are very far from the current chain height, you may want to increase this.

LOTUS_BSYNC_MSG_WINDOW

Set the initial maximum window size for message fetching blocksync requests. If you have a slower internet connection and are having trouble syncing, you might try lowering this down to 10-20 for a 'poor' internet connection.

Lotus Miner

A number of environment variables are respected for configuring the behavior of the filecoin proving subsystem. For more details on those see here.

LOTUS_MINER_PATH

Sets the location for the lotus miners on-disk repo. If left empty, this defaults to ~/.lotusminer.