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https://issues.apache.org/jira/browse/HBASE-22005?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16787452#comment-16787452
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Zheng Hu commented on HBASE-22005:
----------------------------------
OK, [[email protected]], Got your mind. Then I think we need an method in
FSDataInputStream to known whether it support the ByteBufferReadable or not.
Now I can only write an method like this to check, while I don't think it's
efficient or good desgin.
{code}
static boolean isByteBufferReadable(FSDataInputStream is) {
InputStream cur = is.getWrappedStream();
for (;;) {
if ((cur instanceof FSDataInputStream)) {
cur = ((FSDataInputStream) cur).getWrappedStream();
} else {
break;
}
}
return cur instanceof ByteBufferReadable;
}
{code}
> Use ByteBuff's refcnt to track the life cycle of data block
> -----------------------------------------------------------
>
> Key: HBASE-22005
> URL: https://issues.apache.org/jira/browse/HBASE-22005
> Project: HBase
> Issue Type: Sub-task
> Reporter: Zheng Hu
> Assignee: Zheng Hu
> Priority: Major
> Attachments: HBASE-22005.HBASE-21879.v1.patch
>
>
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