[
https://issues.apache.org/jira/browse/HDFS-9576?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Zhe Zhang updated HDFS-9576:
----------------------------
Attachment: HDFS-9576.00.patch
Attaching initial patch.
It actually doesn't make sense to add {{position}} info when tracing write
requests, because they are always sequential. The patch adds a {{position}}
field in every read request (stateful or positional). An alternative is to
avoid the filed for stateful reads, and meanwhile also trace {{seek}} calls.
But in probabilistic tracing, we might miss seek calls.
[~cmccabe], [[email protected]] Could you take a look? Thanks a lot.
> HTrace: collect path/offset/length information on read and write operations
> ---------------------------------------------------------------------------
>
> Key: HDFS-9576
> URL: https://issues.apache.org/jira/browse/HDFS-9576
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: hdfs-client, tracing
> Affects Versions: 2.7.1
> Reporter: Zhe Zhang
> Assignee: Zhe Zhang
> Attachments: HDFS-9576.00.patch
>
>
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
