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Posted to dev@hc.apache.org by "Michael Osipov (Jira)" <ji...@apache.org> on 2020/02/22 19:12:00 UTC
[jira] [Comment Edited] (HTTPCLIENT-1874) Exponential back-off
retry mechanism
[ https://issues.apache.org/jira/browse/HTTPCLIENT-1874?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16196041#comment-16196041 ]
Michael Osipov edited comment on HTTPCLIENT-1874 at 2/22/20 7:11 PM:
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HttpClient already provides quite a sophisticated back-off mechanism. Please have a look those classes below and if possible please leverage APIs that are already in place
https://github.com/apache/httpcomponents-client/blob/4.5.x/httpclient/src/main/java/org/apache/http/impl/execchain/BackoffStrategyExec.java
https://github.com/apache/httpcomponents-client/blob/4.5.x/httpclient/src/main/java/org/apache/http/impl/client/AIMDBackoffManager.java
https://github.com/apache/httpcomponents-client/blob/4.5.x/httpclient/src/main/java/org/apache/http/impl/client/DefaultBackoffStrategy.java
The problem is that the original contributor never got around to documenting the APIs. See HTTPCLIENT-1101
Oleg
was (Author: olegk):
HttpClient already provides quite a sophisticated back-off mechanism. Please have a look those classes below and if possible please leverage APIs that are already in place
https://github.com/apache/httpcomponents-client/blob/4.6.x/httpclient/src/main/java/org/apache/http/impl/execchain/BackoffStrategyExec.java
https://github.com/apache/httpcomponents-client/blob/4.6.x/httpclient/src/main/java/org/apache/http/impl/client/AIMDBackoffManager.java
https://github.com/apache/httpcomponents-client/blob/4.6.x/httpclient/src/main/java/org/apache/http/impl/client/DefaultBackoffStrategy.java
The problem is that the original contributor never got around to documenting the APIs. See HTTPCLIENT-1101
Oleg
> Exponential back-off retry mechanism
> ------------------------------------
>
> Key: HTTPCLIENT-1874
> URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1874
> Project: HttpComponents HttpClient
> Issue Type: New Feature
> Reporter: Ioannis Sermetziadis
> Priority: Major
> Labels: stuck, volunteers-wanted
> Fix For: Stuck
>
>
> I believe it would be useful to have an Exponential Back-off algorithm implementation, as an HttpRequestRetryHandler or under a new interface, named HttpRequestRetryPolicy.
> The implementation could provide both synchronous (similar to the existing retry mechanism) and asynchronous retries, using a provided ExecutorService/ScheduledExecutorService.
> Any feedback would be much appreciated. If you agree with the value of such a feature, I could proceed to the implementation.
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