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https://issues.apache.org/jira/browse/HBASE-19369?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16307528#comment-16307528
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Ted Yu commented on HBASE-19369:
--------------------------------
{code}
+ String dfsClassName = "org.apache.hadoop.hdfs.DistributedFileSystem";
+ String builderClassName = dfsClassName + ".HdfsDataOutputStreamBuilder";
{code}
Shouldn't '$' be used to form the class name for HdfsDataOutputStreamBuilder ?
{code}
+ builderClass = Class.forName(builderClassName);
+ } catch (ClassNotFoundException e) {
+ LOG.info("{} not available, will not use builder API for file
creation.", builderClassName);
{code}
Suggest changing the log level above to DEBUG.
> HBase Should use Builder Pattern to Create Log Files while using WAL on
> Erasure Coding
> --------------------------------------------------------------------------------------
>
> Key: HBASE-19369
> URL: https://issues.apache.org/jira/browse/HBASE-19369
> Project: HBase
> Issue Type: Bug
> Affects Versions: 2.0.0
> Reporter: Alex Leblang
> Assignee: Alex Leblang
> Attachments: HBASE-19369.master.001.patch,
> HBASE-19369.master.002.patch, HBASE-19369.master.003.patch,
> HBASE-19369.master.004.patch, HBASE-19369.v5.patch, HBASE-19369.v6.patch,
> HBASE-19369.v7.patch, HBASE-19369.v8.patch
>
>
> Right now an HBase instance using the WAL won't function properly in an
> Erasure Coded environment. We should change the following line to use the
> hdfs.DistributedFileSystem builder pattern
> https://github.com/apache/hbase/blob/master/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/ProtobufLogWriter.java#L92
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