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https://issues.apache.org/jira/browse/HBASE-9466?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13768268#comment-13768268
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Feng Honghua commented on HBASE-9466:
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[~jdcryans] Thanks for the pointer. But currently the readonly mode can't be
switched on/off without disabling a table. What I proposed for this JIRA is to
provide user the capability to switch a table to readonly mode(temporarily
reject write) without disabling it(hence without offling all its regions, which
is heavy).
Current readonly(table attribute) supports read to a table and rejects update,
but if user wants to enable write to this table, he needs to do online schema
change for this table and which incurs offling/re-onlining operations for all
regions of this table. My proposal is can we provide readonly as table mode(as
enable/disable) rather than table attribute which indicates whether a table
accepts write and can switch on/off without offlining/onlining all its regions.
> Read-only mode
> --------------
>
> Key: HBASE-9466
> URL: https://issues.apache.org/jira/browse/HBASE-9466
> Project: HBase
> Issue Type: New Feature
> Reporter: Feng Honghua
> Priority: Minor
>
> Can we provide a read-only mode for a table? write to the table in read-only
> mode will be rejected, but read-only mode is different from disable in that:
> 1. it doesn't offline the regions of the table(hence much more lightweight
> than disable)
> 2. it can serve read requests
> Comments?
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