Option Name

Default Value

Description

initialReconnectDelay

How long to wait before the first reconnect attempt (in ms)

maxReconnectDelay

30000

The maximum amount of time we ever wait between reconnect attempts (in ms)

useExponentialBackOff

true

Should an expone ntial backoff be used btween reconnect attempts

backOffMultiplier

2.0

The exponent used in the exponential backoff attempts

maxReconnectAttempts

-1 | 0

From version 5.6 onwards: -1 is default and means retry forever, 0 means don't retry (only try connection once but no retry).
+

Option Name	Default Value	Description
initialReconnectDelay	10	How long to wait before the first reconnect attempt (in ms)
maxReconnectDelay	30000	The maximum amount of time we ever wait between reconnect attempts (in ms)
useExponentialBackOff	true	Should an expone ntial backoff be used btween reconnect attempts
reconnectDelayExponent	2.0	The exponent used in the exponential backoff attempts
maxReconnectAttempts	-1 \| 0	From version 5.6 onwards: -1 is default and means retry forever, 0 means don't retry (only try connection once but no retry). Prior to version 5.6: 0 is default and means retry forever. All versions: If set to >0, then this is the maximum number of reconnect attempts before an error is sent back to the client.
startupMaxReconnectAttempts	0	If not 0, then this is the maximum number of reconnect attempts before an error is sent back to the client on the first attempt by the client to start a connection, once connected the maxReconnectAttempts option takes precedence.
randomize	true	use a random algorithm to choose the the URI to use for reconnect from the list provided
backup	false	initialize and hold a second transport connection - to enable fast failover
timeout	-1	Enables timeout on send operations (in miliseconds) without interruption of reconnection process
trackMessages	false	keep a cache of in-flight messages that will flushed to a broker on reconnect
maxCacheSize	131072	size in bytes for the cache, if trackMessages is enabled
updateURIsSupported	true	Determines whether the client should accept updates to its list of known URIs from the connected broker. Added in ActiveMQ 5.4
updateURIsURL	null	A URL (or path to a local file) to a text file containing a comma separated list of URIs to use for reconnect in the case of failure. Added in ActiveMQ 5.4

Transport Options