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https://issues.apache.org/jira/browse/SCB-526?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16461871#comment-16461871
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ASF GitHub Bot commented on SCB-526:
------------------------------------
liubao68 commented on a change in pull request #681: [SCB-526]fetch once from
dynamic config source when boot up
URL:
https://github.com/apache/incubator-servicecomb-java-chassis/pull/681#discussion_r185689721
##########
File path:
dynamic-config/config-cc/src/main/java/org/apache/servicecomb/config/client/ConfigCenterClient.java
##########
@@ -155,8 +161,21 @@ private void refreshMembers(MemberDiscovery
memberDiscovery) {
request.headers().add("X-Auth-Token",
ConfigCenterConfig.INSTANCE.getToken());
}
authHeaderProviders.forEach(provider ->
request.headers().addAll(provider.getSignAuthHeaders(signReq)));
+ request.exceptionHandler(e -> {
+ LOGGER.error("Fetch member from {} failed. Error message is [{}].",
configCenter, e.getMessage());
+ latch.countDown();
+ });
request.end();
});
+ if (wait) {
+ LOGGER.info("Refreshing config center members...");
Review comment:
This is a timer work, we do not print info messages in successful loop
operations.
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> When creating dynamic configuration, we need to fetch once for the
> configuration when startup
> ---------------------------------------------------------------------------------------------
>
> Key: SCB-526
> URL: https://issues.apache.org/jira/browse/SCB-526
> Project: Apache ServiceComb
> Issue Type: Improvement
> Reporter: liubao
> Assignee: liubao
> Priority: Major
>
> Currently, dynamic config is fetched asynchronously, and when users use
> dynamic configuration for following scenario will fail:
> # make some environment, e.g. credentials
> # spring @Value mechanism
> and so on.
>
> When users put these configurations to some dynamic configuration server,
> they can assume server is running OK, and if try to fetch will give the
> correct response.
>
> So it's very useful to fetch configurations once when boot up.
>
>
>
>
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