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https://issues.apache.org/jira/browse/HBASE-18569?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16520184#comment-16520184
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Duo Zhang commented on HBASE-18569:
-----------------------------------
{quote}
Here add a info.isOffline() case, but don't see this condition in onScanNext
method?
{quote}
Just for safety, for a normal table the only way to make a table offline is
split...
{quote}
Whe removed LOG.isTraceEnabled and keep LOG.isDebugEnabled()?
{quote}
There is a Bytes.toStringBinary call which we should avoid if the log level is
not for debug.
{quote}
Is this enough for virtual machine which run the unit test? It may be flaky if
the unit test run slow?
{quote}
I think it is OK, just some in memory operations...
> Add prefetch support for async region locator
> ---------------------------------------------
>
> Key: HBASE-18569
> URL: https://issues.apache.org/jira/browse/HBASE-18569
> Project: HBase
> Issue Type: Sub-task
> Components: asyncclient, Client
> Reporter: Duo Zhang
> Assignee: Duo Zhang
> Priority: Major
> Fix For: 3.0.0, 2.1.0
>
> Attachments: HBASE-18569-v1.patch, HBASE-18569.patch
>
>
> It will be useful for large tables.
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