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Power user preferences

Current article covers the settings of today's latest Sync version. Older Sync versions may be missing some settings or still have deprecated ones.

To open Power user preferences, click Options (the cog button) > Preferences > Advanced > Open power user preferences:


Sync power user preferences:

Name Type Def. Value, unit Purpose
rate_limit_local_peers bool false Limits LAN bandwidth
folder_defaults.use_relay bool true Enables/disables the use of relay
folder_defaults.use_tracker bool true Enables/disables the use of tracker
folder_defaults.use_lan_broadcast bool true Enables/disables LAN broadcast
folder_defaults.known_hosts str not set Hosts should be entered as a single line of IP:port pairs (or DNSname:port pairs*) comma-separated (no other delimiters allowed)
lan_encrypt_data bool true Forces to encrypt all Sync data flowing in LAN
disk_low_priority bool false Forces all disk read-write operations to low priority
max_file_size_for_versioning int 1000 (MB) Defines the maximum archive size
folder_rescan_interval int 600 (sec) Every folder_rescan_interval Sync rescans folder for changes it could miss with other means
sync_max_time_diff int 600 (sec) Maximum time difference allowed between peers. If the actual time difference exceeds this value, Sync won't transfer data and will display an error
send_buf_size int 128 (MB) Amount of memory allocated for outgoing data buffer
recv_buf_size int 128(MB) Amount of memory allocated for incoming data buffer
max_torrent_metadata_size int 16 (MB) Amount of memory allocated for metadata
log_size int 100 (MB) Amount of memory allocated for debug logs
log_ttl int 7 (day) Amount of time debug logs will be stored
profiler_enabled bool false Starts recording data for speed issue analysis. Data is stored in profiler.dat in storage folder, rotated every 10 minutes. Requires client restart to activate.
send_statistics bool true Allows Sync to send anonymous statistical metrics. It only collects data like OS and Sync version, whether Sync is active or not, etc. Resilio never collects any private or sensitive info!
sync_trash_ttl int 30 (day) Amount of time a file will be stored in the archive
config_refresh_interval int 3600 (sec) Controls how often Sync checks for the info about available trackers and relay servers. Can be adjusted to prevent HDD from low-power mode
external_port int 0 External (i.e. relative to NAT) port value
config_save_interval int 600 (sec) Controls how often settings are saved to storage. Can be adjusted to prevent HDD from low-power mode
worker_threads_count int 0 Number of CPU threads to use during indexing. "0" means "use as many threads as possible on all cores available". 1 means one thread only, and so on. ***


not set

(eth0, wlan0 or MAC address)

Specifies network interface which will be used by Sync **
enable_file_system_notifications bool true Enables/disables file system notifications
enable_journaling bool true Enables/disables journaling of file changes/file moving (must be 'false' for NAS to be able to sleep)
peer_expiration_days int 7 (day) Number of days to pass before a peer is removed from the peer list
max_packet_size int 32 (Mb) Maximum allowed packet size containing sync service data (tree nodes, ACLs, etc.)

* DNS name is resolved by OS means once per minute.

**The value is operating system-dependent. Correct syntax for MAC addresses is using lower case and colons: b8:27:eb:d2:00:3c, for example.

*** Sync still has some number of working threads created for ongoing work - disk jobs, connections, working with UI. This value sets the number of additional threads for other tasks, like indexing, checking file signatures, etc  It's advisable not to use too many threads on slow CPU so as to avoid its overloading. 

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