Re: About the default value of dfs.client.failover.random.order.

[Takanobu Asanuma <ta...@apache.org>]

Hi,

Seems there are no concerns for now. I created HDFS-15350 addressing it.
If you have any concerns, please comment on the jira.

Thanks,
- Takanobu

2020年4月30日(木) 17:27 Takanobu Asanuma <ta...@apache.org>:
>
> Hi,
>
> Currently, the default value of dfs.client.failover.random.order is
> false. If it's true, clients access to NameNodes random order instead
> of the configured order which is defined in hdfs-site.xml.
>
> Setting dfs.client.failover.random.order=true is very important for
> RBF if there are multiple routers. If it's false, all the clients
> point to the same router because routers are always active.
>
> And I think dfs.client.failover.random.order=true would be good manner
> for normal HA(two-NameNodes) Cluster too. If it's false and the first
> NameNode is standby, clients always access to standby NameNode at
> first.
>
> So I'd like to set dfs.client.failover.random.order to true as default
> from 3.4. Does anyone have any concerns?
>
> Thanks,
> - Takanobu

---------------------------------------------------------------------
To unsubscribe, e-mail: hdfs-dev-unsubscribe@hadoop.apache.org
For additional commands, e-mail: hdfs-dev-help@hadoop.apache.org