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https://issues.apache.org/jira/browse/HADOOP-18827?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Simbarashe Dzinamarira updated HADOOP-18827:
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Description:
The "dfs.client.rbf.observer.enabled" flag was add to allow a client using
IPFailoverProxyProvider to use observer reads with routers.
Now we have implemented the RouterObserverReadProxyProvider which better
supported observer reads, i.e performing msync automatically.
In our environment, we still have clients that opted out of observer reads by
setting "dfs.client.rbf.observer.enabled=false". The
RouterObserverReadProxyProvider should respect the opt-out decision of these
clients.
> RouterObserverReadProxyProvider should respect observer read opt-out via
> dfs.client.rbf.observer.enabled=false flag.
> --------------------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-18827
> URL: https://issues.apache.org/jira/browse/HADOOP-18827
> Project: Hadoop Common
> Issue Type: Improvement
> Environment: The "dfs.client.rbf.observer.enabled" flag was add to
> allow a client using IPFailoverProxyProvider to use observer reads with
> routers.
> Now we have implemented the RouterObserverReadProxyProvider which better
> supported observer reads, i.e performing msync automatically.
> In our environment, we still have clients that opted out of observer reads by
> setting "dfs.client.rbf.observer.enabled=false". The
> RouterObserverReadProxyProvider should respect the opt-out decision of these
> clients.
> Reporter: Simbarashe Dzinamarira
> Assignee: Simbarashe Dzinamarira
> Priority: Major
>
> The "dfs.client.rbf.observer.enabled" flag was add to allow a client using
> IPFailoverProxyProvider to use observer reads with routers.
> Now we have implemented the RouterObserverReadProxyProvider which better
> supported observer reads, i.e performing msync automatically.
> In our environment, we still have clients that opted out of observer reads by
> setting "dfs.client.rbf.observer.enabled=false". The
> RouterObserverReadProxyProvider should respect the opt-out decision of these
> clients.
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