[
https://issues.apache.org/jira/browse/HDFS-9322?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Rafal Wojdyla updated HDFS-9322:
--------------------------------
Labels: has-patch (was: )
Status: Patch Available (was: Open)
> Keep order of addresses to nameservice mapping from configuration file
> ----------------------------------------------------------------------
>
> Key: HDFS-9322
> URL: https://issues.apache.org/jira/browse/HDFS-9322
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 2.7.1
> Reporter: Rafal Wojdyla
> Assignee: Rafal Wojdyla
> Labels: has-patch
> Attachments: HDFS-9322.patch_1
>
>
> getAddressesForNameserviceId which is used by ConfiguredFailoverProxyProvider
> does not keep order of namenodes/addresses from configuration file - instead
> it relays on order given by HashMap (key is service id) which is misaligned
> with comment/doc in ConfiguredFailoverProxyProvider that says:
> {code}
> /**
> * A FailoverProxyProvider implementation which allows one to configure two
> URIs
> * to connect to during fail-over. The first configured address is tried
> first,
> * and on a fail-over event the other address is tried.
> */
> {code}
> One solution is to use LinkedHashMap which is insertion-ordered.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
