Command/Output Ordering is messed up nondeterministically

[sils]

See http://www.rultor.com/t/4530-122266254 the lines after + bash .misc/deploy.rultor.sh, first it echoes two ls commands, then it shows the output of the two ls commands and then it does the third command and its output.

So some ordering problem seems to be there.

[yegor256]

@sils1297 I can't find the content of .misc/deploy.rultor.sh in your repo, but I can only suspect that you have something like this there:

ls -la & ls -la

Am I right?

[sils]

@yegor256 nope. It was

ls -la .
ls -la ..
ls -la .misc

[yegor256]

@sils1297 it's just technically not possible... can you show full code of your script?

[sils]

@yegor256 just pushed it for you:

https://github.com/sils1297/coala/blob/sils/rultor/.misc/deploy.rultor.sh

as you can see from the commit sha it's the very same commit used in the log.

[yegor256]

@sils1297 I can't reproduce the problem... What do you have in .rultor.yml?

[sils]

@yegor256 this branch points to the very same commit that resultet in the failure, here's the branch link:

https://github.com/sils1297/coala/tree/sils/rultor

thats the rultor.yml then: https://github.com/sils1297/coala/blob/sils/rultor/.rultor.yml

[alex-palevsky]

@sils1297 we will find someone to do this task, soon

[alex-palevsky]

@sils1297 since there is no milestone yet I set it to "2.0"

[original-brownbear]

@yegor256 since you asked, this is a result of output buffering occurring, since the containers are not ran in line buffered mode.
=> Output is dumped in 4096byte chunks.

Likely this can simply be fixed by running the container with the -t ( tty => line buffering) flag, but this needs to be investigated. Could be we have multiple spots where buffering can occur in the execution.

Pushed a small demo of this here: https://github.com/original-brownbear/output-buffering-docker
This should make it trivial to understand the issue for whoever deals with this.

[yegor256]

@original-brownbear interesting catch! well, let's try the -t flag?

[original-brownbear]

@yegor256 yes, lets go for it :)

[original-brownbear]

@alex-palevsky assign me please.

[alex-palevsky]

@alex-palevsky assign me please.

@original-brownbear yep, it is yours, go ahead

[original-brownbear]

@yegor256 could you run the deploy on this one (#1023) ? :) , #982 still prevents me from doing that.

[yegor256]

@rultor deploy

[rultor]

@rultor deploy

@yegor256 OK, I'll try to deploy now. You can check the progress here

[rultor]

@rultor deploy

@yegor256 Done! FYI, the full log is here (took me 7min)

[original-brownbear]

@sils1297 can you try again ? This issue should be resolved now :)

[sils]

Hey, I don't have time to try it out, sorry.

[original-brownbear]

@sils1297 no problem :), maybe you could still close this, given #1023 has been merged and I think clearly lays out ( and has a screenshot :) ) how and why this fixes this issue ?

[alex-palevsky]

@original-brownbear 45 mins sent to your balance (ID AP-1YD48006MS2809915), many thanks! It took 24 hours and 22 mins.; there is a bonus for fast delivery (m=1462); +45 added to your rating, current score is: +208