Hi Yiyang,

+1 to enable if we have a way to exclude on demand.

Thanks,
Arpit


> On Apr 3, 2022, at 9:37 PM, Janus Chow <yiyang0...@gmail.com> wrote:
> 
> 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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