clients (instance statistics)
Selecting the clients resource will list all connected clients by name. Selecting a single client will show various statistics for that client.
authenticated_id
The ID used to authenticate this client, if any.
fixed
bytes_in
Number of bytes received.
cumulative
bytes_in_per_sec
Rate of bytes received.
interval average
bytes_out
Number of bytes sent.
cumulative
bytes_out_per_sec
Rate of bytes received.
interval average
client_name
Identifier for the client, set during logon.
fixed
client_name_hash
AMPS hash for the client name.
fixed
client_version
Version string provided by the client.
fixed
connect_time
UTC time client connection is established.
fixed
connection_name
Name of the connection.
fixed
correlation_id
The CorrelationId provided with the logon command, if any.
fixed
denied_reads
Number of read requests which have been denied due to an entitlement filter.
cumulative
denied_writes
Number of write requests which have been denied due to an entitlement filter.
cumulative
messages_in
Number of messages received from client.
cumulative
messages_in_per_sec
Rate of messages received.
interval average
messages_out
Number of messages sent to the client.
cumulative
messages_out_per_sec
Rate of messages sent to the client.
interval average
query_time
The amount of time spent for queries from this client.
cumulative
queue_depth_out
Number of messages queued to be sent to client.
This represents a count of the messages that AMPS cannot write to the outgoing socket due to the transmit buffer being full.
This does not count messages already written to the transmit buffer. (The transport_tx_queue has information about the transmit buffer.)
snapshot
queue_max_latency
The age of the oldest item in the queue which has not yet been sent.
This is used as a measure of how far behind AMPS believes a subscribing client is.
This measures the age of the oldest message that AMPS cannot write to the outgoing socket due to the transmit buffer being full.
This does not count messages already written to the transmit buffer. (The transport_tx_queue has information about the transmit buffer.)
The latency is measured in seconds at the resolution of the system clock.
snapshot
queued_bytes_out
Number of queued bytes waiting to be sent.
This represents a count of the number of bytes that AMPS cannot write to the outgoing socket due to the transmit buffer being full.
This does not count messages already written to the transmit buffer (transport_tx_queue will show messages written to the transmit buffer that have not yet been sent).
snapshot
remote_address
Address and port of the remote side of the client connection.
fixed
subscription_count
Number of subscriptions currently active for the client.
snapshot
tcp_zero_window_advert
Shows whether this client is currently advertising a zero window size.
This is 1 if the client is advertising a windows size of zero, set to 0 if the client is advertising any other value or if the client connection does not use TCP (for example, the client uses UDS to connect to AMPS).
snapshot
transport_rx_queue
Number of bytes in the transport receive buffer (typically the TCP buffer) for this client./p>
This measures messages arriving from the client.
snapshot
transport_tx_queue
Number of bytes in transport transmit buffer (typically the TCP buffer) for this client.
This measures messages being sent to the client.
snapshot
Statistics Database Tables: ICLIENTS_STATIC, ICLIENTS_DYNAMIC
Admin Path: /amps/instance/clients/<id>/<metric>
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