Thanks for the reply. @Arp

>From the commit in
https://github.com/apache/hadoop/blob/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml#L3190,
I think by default the configuration is empty.

In a releted ticket, https://issues.apache.org/jira/browse/HDFS-9828, It's
also recommended not to disable READ audit logs.

Currently, we only enabled audit for READ in our UAT cluster, the
request/second is not very high, in PROD cluster, it should be quite higher.

IMHO, the read audit log is quite useful, the problem is that we don't have
a similar way like HDFS to exclude some read operations. If we have a
similar exclude mechanism, is it ok to enable READ operation audit log by
default?


Thanks
Yiyang

Arpit Agarwal <aagar...@cloudera.com.invalid> 于2022年4月4日周一 12:01写道:

> Hi Janus,
>
> Performance will be the main concern. In busy HDFS clusters admins are
> likely to use dfs.namenode.audit.log.debug.cmdlist.
>
> Have you enabled read audit logging in your Ozone cluster? What is the
> number of requests/second?
>
> Thanks,
> Arpit
>
>
> > On Apr 3, 2022, at 7:58 PM, Janus Chow <yiyang0...@gmail.com> wrote:
> >
> > Hi Ozone dev,
> >
> > When checking the audit logs from Ozone components, we found that by
> > default Ozone only logs WRITE operations. In order to enable the audit
> log
> > for READ operations, we need to change the configurations in
> > audit-log4j2.properties.
> > That brings some confusion for users when comparing it to some other
> > storage systems, like HDFS, in which audit logs are enabled for both READ
> > and WRITE by default.
> >
> > We have a Jira ticket(https://issues.apache.org/jira/browse/HDDS-6532)
> and
> > PR (https://github.com/apache/ozone/pull/3255) about adding audit logs
> for
> > READ operations by default.
> > Could you help to check and comment if there are any specific concerns
> > not to enable READ audit logs?
> >
> > Yiyang
> > Thank you very much.
>
>
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