Re: Maven build hanging -- how to collect diagnostics?

[Tamás Cservenák]

Please use the Maven User list, this list (issues) is for automated JIRA
emails and is probably filtered/archived by many of us.

Also, please specify Maven version, Java version (that Maven uses).

https://maven.apache.org/mailing-lists.html

Thanks
T

On Thu, Dec 1, 2022 at 4:50 PM John Lilley
 wrote:

> Greetings,
>
>
>
> I have a maven build for a somewhat complex tree of projects, where I find
> that a multi-thread build will hang unless “clean” is done first.  A
> single-thread build is fine.  The hang seems to occur at one of the
> “Installing…” messages, but of course being multi-threaded it is unclear
> whether that is the proximal cause.  Oddly, when it hangs, maven continues
> to consume a full CPU core, which indicates some sort of live-lock
> situation.  This is on Windows 10.
>
>
>
> At this point, I have two questions:
>
>- Does someone recognize this as a known issue?
>- If not, please help me collect diagnostics so that I could submit a
>useful bug report.  Can I enable verbose debug logging?  When it hangs,
>would a jstack dump be helpful?
>
>
>
> Thanks
>
> John
>
>
>
> [image: rg] 
>
> John Lilley
>
> Data Management Chief Architect, Redpoint Global Inc.
>
> 888 Worcester Street, Suite 200 Wellesley, MA 02482
>
> *M: *+1 7209385761 <+1%207209385761> | john.lil...@redpointglobal.com
>
> PLEASE NOTE: This e-mail from Redpoint Global Inc. (“Redpoint”) is
> confidential and is intended solely for the use of the individual(s) to
> whom it is addressed. If you believe you received this e-mail in error,
> please notify the sender immediately, delete the e-mail from your computer
> and do not copy, print or disclose it to anyone else. If you properly
> received this e-mail as a customer, partner or vendor of Redpoint, you
> should maintain its contents in confidence subject to the terms and
> conditions of your agreement(s) with Redpoint.
>

Maven build hanging -- how to collect diagnostics?

[John Lilley]

Greetings,

I have a maven build for a somewhat complex tree of projects, where I find that 
a multi-thread build will hang unless “clean” is done first.  A single-thread 
build is fine.  The hang seems to occur at one of the “Installing…” messages, 
but of course being multi-threaded it is unclear whether that is the proximal 
cause.  Oddly, when it hangs, maven continues to consume a full CPU core, which 
indicates some sort of live-lock situation.  This is on Windows 10.

At this point, I have two questions:

  *   Does someone recognize this as a known issue?
  *   If not, please help me collect diagnostics so that I could submit a 
useful bug report.  Can I enable verbose debug logging?  When it hangs, would a 
jstack dump be helpful?

Thanks
John



[rg] 

John Lilley

Data Management Chief Architect, Redpoint Global Inc.

888 Worcester Street, Suite 200 Wellesley, MA 02482

M: +1 7209385761 | 
john.lil...@redpointglobal.com

PLEASE NOTE: This e-mail from Redpoint Global Inc. (“Redpoint”) is confidential 
and is intended solely for the use of the individual(s) to whom it is 
addressed. If you believe you received this e-mail in error, please notify the 
sender immediately, delete the e-mail from your computer and do not copy, print 
or disclose it to anyone else. If you properly received this e-mail as a 
customer, partner or vendor of Redpoint, you should maintain its contents in 
confidence subject to the terms and conditions of your agreement(s) with 
Redpoint.