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https://issues.apache.org/jira/browse/HBASE-6067?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13281745#comment-13281745
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Eli Collins commented on HBASE-6067:
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Should mentioned that I considered defining hbase.regionserver.hlog.blocksize
and hbase.regionserver.hlog.tolerable.lowreplication in hbase-default.xml and
use constants in the code like the other parameters but then (1) you can have a
mismatch between hbase and hdfs' parameter values and (2) HBase supports
non-HDFS file systems which may want different default values.
> HBase won't start when hbase.rootdir uses ViewFileSystem
> --------------------------------------------------------
>
> Key: HBASE-6067
> URL: https://issues.apache.org/jira/browse/HBASE-6067
> Project: HBase
> Issue Type: Improvement
> Components: regionserver
> Reporter: Eli Collins
>
> HBase currently doesn't work with HDFS federation (hbase.rootdir with a
> client that uses viewfs) because HLog#init uses
> FileSystem#getDefaultBlockSize and getDefaultReplication. These throw an
> exception because there is no default filesystem in a viewfs client so
> there's no way to determine a default block size or replication factor. They
> could use the versions of these methods that take a path, however these were
> introduced in HADOOP-8014 and are not yet available in Hadoop 1.x.
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