ArangoSync Workers

For optimal performance at least 1 worker instance must be placed on every machine that has an ArangoDB DB-Server running. This ensures that tasks can be executed with minimal network traffic outside of the machine.

To start an ArangoSync Worker using a service, use a unit like this:

Note the large file descriptor limit. The sync worker requires about 30 file descriptors per shard. If you use hardware with huge resources, and still run out of file descriptors, you can decide to run multiple sync workers on each machine in order to spread the tasks across them.