[
https://issues.apache.org/jira/browse/HDFS-4045?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13499321#comment-13499321
]
Andy Isaacson commented on HDFS-4045:
-------------------------------------
Note for reviewers: I will add the missing javadoc. Please review the
architecture and refactoring in hdfs4045-4 and let me know if you'd like to see
a different approach. Also, there are a few open-coded constructs that I
haven't yet found a relevant implementation for, specifically
{code}
+ @Override
+ public void writeRaw(FSEditLogOp op) throws IOException {
+ Checksum checksum = new PureJavaCrc32();
+ checksum.reset();
+ byte [] bytes = op.getRawBytes();
+ checksum.update(bytes, 0, bytes.length);
+ writeBytes(bytes);
+ byte [] b = new byte[4];
+ int sum = (int)checksum.getValue();
+ b[0] = (byte)((sum >> 24) & 0xff);
+ b[1] = (byte)((sum >> 16) & 0xff);
+ b[2] = (byte)((sum >> 8 ) & 0xff);
+ b[3] = (byte)((sum ) & 0xff);
+ writeBytes(b);
+ }
{code}
> SecondaryNameNode cannot read from QuorumJournal URI
> ----------------------------------------------------
>
> Key: HDFS-4045
> URL: https://issues.apache.org/jira/browse/HDFS-4045
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: name-node
> Affects Versions: 3.0.0
> Reporter: Vinithra Varadharajan
> Assignee: Andy Isaacson
> Attachments: hdfs-4045-2.txt, hdfs4045-3.txt, hdfs4045-4.txt,
> hdfs-4045.txt
>
>
> If HDFS is set up in basic mode (non-HA) with QuorumJournal, and the
> dfs.namenode.edits.dir is set to only the QuorumJournal URI and no local dir,
> the SecondaryNameNode is unable to do a checkpoint.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
