[jira] [Updated] (TS-3028) Some ET_NET threads go to uninterruptable sleep with empty disk I/O

["Jungwoo Lee (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/TS-3028?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jungwoo Lee updated TS-3028:
----------------------------

    Attachment: disk_state.png
                process_state.png

> Some ET_NET threads go to uninterruptable sleep with empty disk I/O
> -------------------------------------------------------------------
>
>                 Key: TS-3028
>                 URL: https://issues.apache.org/jira/browse/TS-3028
>             Project: Traffic Server
>          Issue Type: Bug
>          Components: Core
>            Reporter: Jungwoo Lee
>         Attachments: disk_state.png, process_state.png
>
>
> I use ATS as a cache server.
> Caching contents are a lot of small size files, image, html, xml and etc..
> Sometimes ET_NET threads go to uninterruptable sleep and no disk I/O occurrs.
> I attach pictures showing the status of threads( by shell command top ) and those of disk( by shell command iostat 1 )
> And ATS system uses 2TB disk as a cache and 16GB memory.



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