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https://issues.apache.org/jira/browse/HDFS-12345?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16869253#comment-16869253
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Wei-Chiu Chuang commented on HDFS-12345:
----------------------------------------
I think it's good. I've taken part of the code to develop a KMS audit replay
tool and helped us debug a tricky issue.
The only thing I noticed is that the Dynamometer audit replay tool assumes
NameNode audit log format is in 12-hour format, UTC time.
{code}
private static final DateFormat AUDIT_DATE_FORMAT = new
SimpleDateFormat(
"yyyy-MM-dd hh:mm:ss,SSS");
static {
AUDIT_DATE_FORMAT.setTimeZone(TimeZone.getTimeZone("UTC"));
}
{code}
But in reality, NameNode audit log format is not fixed, can be changed by
log4j.properties.
> Scale testing HDFS NameNode with real metadata and workloads (Dynamometer)
> --------------------------------------------------------------------------
>
> Key: HDFS-12345
> URL: https://issues.apache.org/jira/browse/HDFS-12345
> Project: Hadoop HDFS
> Issue Type: New Feature
> Components: namenode, test
> Reporter: Zhe Zhang
> Assignee: Erik Krogen
> Priority: Major
> Attachments: HDFS-12345.000.patch, HDFS-12345.001.patch,
> HDFS-12345.002.patch, HDFS-12345.003.patch, HDFS-12345.004.patch,
> HDFS-12345.005.patch, HDFS-12345.006.patch, HDFS-12345.007.patch
>
>
> Dynamometer has now been open sourced on our [GitHub
> page|https://github.com/linkedin/dynamometer]. Read more at our [recent blog
> post|https://engineering.linkedin.com/blog/2018/02/dynamometer--scale-testing-hdfs-on-minimal-hardware-with-maximum].
> To encourage getting the tool into the open for others to use as quickly as
> possible, we went through our standard open sourcing process of releasing on
> GitHub. However we are interested in the possibility of donating this to
> Apache as part of Hadoop itself and would appreciate feedback on whether or
> not this is something that would be supported by the community.
> Also of note, previous [discussions on the dev mail
> lists|http://mail-archives.apache.org/mod_mbox/hadoop-hdfs-dev/201707.mbox/%[email protected]%3e]
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