[jira] [Updated] (HBASE-24395) ServerName#getHostname() is case sensitive

["Michael Stack (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-24395?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Michael Stack updated HBASE-24395:
----------------------------------
    Status: In Progress  (was: Patch Available)

> ServerName#getHostname() is case sensitive
> ------------------------------------------
>
>                 Key: HBASE-24395
>                 URL: https://issues.apache.org/jira/browse/HBASE-24395
>             Project: HBase
>          Issue Type: Sub-task
>          Components: Balancer
>    Affects Versions: 1.3.1
>            Reporter: Bo Cui
>            Assignee: Bo Cui
>            Priority: Major
>         Attachments: HBase-24395.patch, image-2020-05-18-17-42-57-119.png
>
>
> ServerName calss，the getServerName(String hostName, int port, long startcode),equals and compareTo are case insensitive, but getHostname() is case sensitive.
> if hostName is HOSTNAME1, ServerName is hostname1,11111,1589615319931, and getHostname() returns HOSTNAME1.
> and then BaseLoadBalancer#retainAssignment() uses ServerName#getHostname(), all keys of serversByHostname are upperCase(HOSTNAME1,HOSTNAME2,HOSTNAME3,HOSTNAME4...) from ServerManager#createDestinationServersList, but oldServerName.getHostname() is lowerCase(hostname1,hostname2,hostname3...) from walLog dir.
> !image-2020-05-18-17-42-57-119.png!
> and finally...all region of old ServerName will be assigned to random hosts



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