Centralized Sequencer Node

The centralized-sequencer node implements a pluggable centralized sequencer scheme. It can be configured using the following flags:

Flag	Usage	Default
batch-time	Time in seconds to wait before generating a new batch	2 seconds
da_address	DA address	http://localhost:26658
da_auth_token	Auth token for the DA	""
da_namespace	DA namespace where the sequencer submits transactions	""
host	Centralized sequencer host	localhost
port	Centralized sequencer port	50051
listen-all	Listen on all network interfaces (0.0.0.0) instead of just localhost	disabled
metrics	Enable Prometheus metrics	disabled
metrics-address	Address to expose Prometheus metrics	":8080"

See centralized-sequencer --help for details.

The centralized-sequencer node reports Prometheus metrics when the -metrics flag is enabled.

By default, metrics are exported to http://localhost:8080/metrics.

The listening address and port can be configured with the -metrics-address flag.

The following metrics are available:

Name	Type	Tags	Description
sequencer_gas_price	Gauge		Gas price of the DA transaction
sequencer_last_blob_size	Gauge		Last blob size submitted to the DA
sequencer_transaction_status	Gauge		Transaction status of the DA transaction
sequencer_num_pending_blocks	Gauge		Number of blocks pending DA submission
sequencer_included_block_height	Gauge		Block height of the last DA transaction