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https://issues.apache.org/jira/browse/HDFS-1580?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13026852#comment-13026852
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dhruba borthakur commented on HDFS-1580:
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Nice document. can you pl describe the error situations in more detail:
1. what happens when the write to the outputstream throws an expcetion? can the
client continue to write new transactions to the stream?
2. what happens when the InputStream.read() encounters a partial transaction?
3. from the InputStream, is it possible to know how many transactions are
available (without actually reading till the end of the stream)?
> Add interface for generic Write Ahead Logging mechanisms
> --------------------------------------------------------
>
> Key: HDFS-1580
> URL: https://issues.apache.org/jira/browse/HDFS-1580
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Ivan Kelly
> Fix For: Edit log branch (HDFS-1073)
>
> Attachments: EditlogInterface.1.pdf, HDFS-1580+1521.diff,
> HDFS-1580.diff, HDFS-1580.diff, HDFS-1580.diff, generic_wal_iface.pdf,
> generic_wal_iface.pdf, generic_wal_iface.pdf, generic_wal_iface.txt
>
>
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