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https://issues.apache.org/jira/browse/HBASE-8927?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14987237#comment-14987237
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Jeroen van Bemmel commented on HBASE-8927:
------------------------------------------

A shift in system time ( e.g. ntpdate -u or date -s on Linux ) can cause a 
Zookeeper server to close all client connections due to session timeout; it 
becomes unavailable for several minutes until it recovers.
Using System.nanoTime() (in the right places) can potentially make the system 
immune to such local time shifts, on platforms that support the monotonically 
increasing clock

> Use nano time instead of mili time everywhere
> ---------------------------------------------
>
>                 Key: HBASE-8927
>                 URL: https://issues.apache.org/jira/browse/HBASE-8927
>             Project: HBase
>          Issue Type: Bug
>            Reporter: stack
>              Labels: phoenix
>         Attachments: 8927-WIP-TEST.txt, 8927.txt
>
>
> Less collisions and we are paying the price of a long anyways so might as 
> well fill it.



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