Dynamic setup of suspendDurationOnFailure
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Key: SYNAPSE-466
URL: https://issues.apache.org/jira/browse/SYNAPSE-466
Project: Synapse
Issue Type: Improvement
Components: Endpoints
Affects Versions: 1.2
Reporter: Eric Hubert
Assignee: Asankha C. Perera
Fix For: 1.3
The suspendDurationOnFailure must be a dynamic value which shall start with an
initial (normally small) value, which then increases proportionally after each
subsequent failed try. After a successful try the try-counter will be reset. An
optional max value shall limit the maximum amount between subsequent checks.
Implementation idea:
The suspendDurationOnFailure shall be implemented as a geometric series:
d = d * q <=> d
n+1 n n+1
-------------
d
n
With a configurable value d1 for the duration after the first failed try, an
optional configurable quotient q to specify "the level of over
proportionality"(default 3?) and an optional maximal limit of dn (default no
limit).
Additionally, it should be possible to specify a set of error conditions which
at once would move the endpoint into suspension.
A temporary error (such as a connection timeout or close) should be able to
mark the endpoint for suspension, with a fixed number of retries and a
corresponding delay. After the retries expires, the endpoint would be
suspended. Again, it should be possible to specify the error conditions, which
would mark the endpoint for suspension
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