[asterisk-bugs] [JIRA] (ASTERISK-18200) CLI output is limited to 24000 bytes, running 'dialplan reload' in verbose mode

[Corey Farrell (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-18200?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=225683#comment-225683 ] 

Corey Farrell commented on ASTERISK-18200:
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I've reproduced this issue by running asterisk from two terminals using {{asterisk -cvvv}}, then once fully booted {{asterisk -rvvv}}.  I am able to confirm this issue, with the attached dialplan the output of {{dialplan reload}} only reached extension 272.  Upon further investigation I found we are getting {{errno == EAGAIN}} from {{fdwrite}}.  This is due to {{console\[x].p\[1]}} being set to {{O_NONBLOCK}}.

Removing O_NONBLOCK does fix the issue, but I'm concerned this could cause slowdowns when something floods remote consoles.  O_NONBLOCK was set in SVN revision 367, which has "Version 0.1.9 from FTP" in the commit log.  So it's possible that O_NONBLOCK is unneeded, but difficult to prove.

In my opinion this would be a high risk/low reward fix that should not be considered for any released version, if at all.  As it is I see this as "accidental flood protection".  This issue also does not effect verbose logs configured in logger.conf, only consoles.

> CLI output is limited to 24000 bytes, running 'dialplan reload' in verbose mode
> -------------------------------------------------------------------------------
>
>                 Key: ASTERISK-18200
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-18200
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Core/Configuration
>    Affects Versions: 1.6.2.19, 1.8.5.0
>         Environment: Linux Debian 6.0.2 (Squeeze), both asterisk versions compiled against standard Debian libraries
>            Reporter: xerofun
>            Severity: Trivial
>         Attachments: cli-output-broken-dialplan.txt, extensions.conf
>
>
> Initially I thought not only the output on the CLI is limited, but also reloading the dialplan cuts off at a certain point.
> It seems that only the CLI output is limited to 24000 bytes when hitting 'dialplan reload'.
> So I still think this is a (cosmetic) bug, as I really want to see all the output when running in debug mode i.e. 'asterisk -rvvv'. If there's an error in the dialplan in the part that's cut off, I won't see it.
> Please use the attached extensions.conf to reproduce this by entering the asterisk shell with 'asterisk -rvvv' and enter 'dialplan reload'. Sometimes it works and outputs the full diaplan, but most times it just cuts off at extension 362 or 363.



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