Why I have the issue of " Child returned 137"

ODM
1

this is issue picture

WX20180715-163152%402x
WX20180715-163152%402x1134×314 59.9 KB

command：
docker run -it --rm \

-v $(pwd)/images:/code/images \
-v $(pwd)/odm_orthophoto:/code/odm_orthophoto \opendronemap/opendronemap

–texturing-skip-visibility-test
I use docker
memory:8G
picture counts:224
dimensions: 4000 x 3000
I want to know why I have this issue?

2

Note the Killed text in the error message. That means you ran out of memory!

Try resizing your images, or if you just need an orthophoto, try to use the --fast-orthophoto parameter.

3

I ran with the same problem as follow:

Blockquote
2019-09-23 17:39:31,638 INFO: Shots and/or GCPs are well-conditionned. Using naive 3D-3D alignment.
Killed
Traceback (most recent call last):
File “/code/run.py”, line 57, in
app.execute()
File “/code/stages/odm_app.py”, line 92, in execute
self.first_stage.run()
File “/code/opendm/types.py”, line 370, in run
self.next_stage.run(outputs)
File “/code/opendm/types.py”, line 370, in run
self.next_stage.run(outputs)
File “/code/opendm/types.py”, line 370, in run
self.next_stage.run(outputs)
File “/code/opendm/types.py”, line 351, in run
self.process(self.args, outputs)
File “/code/stages/run_opensfm.py”, line 29, in process
octx.reconstruct(self.rerun())
File “/code/opendm/osfm.py”, line 39, in reconstruct
self.run(‘reconstruct’)
File “/code/opendm/osfm.py”, line 21, in run
(context.opensfm_path, command, self.opensfm_project_path))
File “/code/opendm/system.py”, line 76, in run
raise Exception(“Child returned {}”.format(retcode))
Exception: Child returned 137

Where do I type “–fast-orthophotoparameter” altogether?

4

How are you currently running OpenDroneMap? Are you running it from WebODM?

5

Terminal on my macbook and docker.
Memory: 8 gb 1600 MHz DDR3

6

Ooh, 8gb is small. You might consider using the flag --max-concurrency 2 or similar to reduce memory usage.

Flags can be added after the docker image name, e.g.:

docker run -it --rm \
    -v "$(pwd)/images:/code/images" \
    -v "$(pwd)/odm_orthophoto:/code/odm_orthophoto" \
    -v "$(pwd)/odm_texturing:/code/odm_texturing" \
    opendronemap/odm --fast-orthophoto

Or alternatively:

docker run -it --rm \
    -v "$(pwd)/images:/code/images" \
    -v "$(pwd)/odm_orthophoto:/code/odm_orthophoto" \
    -v "$(pwd)/odm_texturing:/code/odm_texturing" \
    opendronemap/odm --fast-orthophoto --max-concurrency 2

edit: no disrespect meant to your macbook. 8GB is fine for most tasks, it’s just relatively small for photogrammetry.

1 Like
7

Ohh, I see. Actually it is very fast for my daily tasks, by the way.

So, is it shutting down because of my low memory?

I thought it could take a little longer, but shutting down, I did not know it.

I need to understand better those tricks.

I am a beginner in the coding.

I will try those codes here.

Thanks for the quick answering.

1 Like
8

Yes, my laptop has the same memory.

Yes, Killed is usually a sign of an out of memory error. Good luck!

9

You can also use webodm.net if you are running out of memory (disclaimer: I run that service).

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