Pdal pipeline Exception: Child returned 139

ODM
1

Hi Team,
I have setup ODM 0.4 in ubuntu 16.04 which was working fine. Recently i updated python-gdal package which comes now Gdal-2.2.2.
After update gdal i am getting error in odm-dem generation step and it happens for all projects.

[DEBUG] running pdal pipeline -i /tmp/tmpDf1Dfo.json > /dev/null 2>&1
Traceback (most recent call last):
File “/mnt/odm/odm-v0.4/run.py”, line 47, in
plasm.execute(niter=1)
File “/mnt/odm/odm-v0.4/scripts/odm_dem.py”, line 108, in process
verbose=args.verbose
File “/mnt/odm/odm-v0.4/opendm/dem/commands.py”, line 32, in create_dems
radius=rad, outdir=outdir, suffix=suffix, resolution=resolution, **kwargs))
File “/mnt/odm/odm-v0.4/opendm/dem/commands.py”, line 82, in create_dem
pdal.run_pipeline(json, verbose=verbose)
File “/mnt/odm/odm-v0.4/opendm/dem/pdal.py”, line 222, in run_pipeline
out = system.run(’ ‘.join(cmd) + ’ > /dev/null 2>&1’)
File “/mnt/odm/odm-v0.4/opendm/system.py”, line 34, in run
raise Exception(“Child returned {}”.format(retcode))
Exception: Child returned 139

Can [DEBUG] running pdal pipeline -i /tmp/tmpDf1Dfo.json > /dev/null 2>&1
Traceback (most recent call last):
File “/mnt/odm/odm-v0.4/run.py”, line 47, in
plasm.execute(niter=1)
File “/mnt/odm/odm-v0.4/scripts/odm_dem.py”, line 108, in process
verbose=args.verbose
File “/mnt/odm/odm-v0.4/opendm/dem/commands.py”, line 32, in create_dems
radius=rad, outdir=outdir, suffix=suffix, resolution=resolution, **kwargs))
File “/mnt/odm/odm-v0.4/opendm/dem/commands.py”, line 82, in create_dem
pdal.run_pipeline(json, verbose=verbose)
File “/mnt/odm/odm-v0.4/opendm/dem/pdal.py”, line 222, in run_pipeline
out = system.run(’ ‘.join(cmd) + ’ > /dev/null 2>&1’)
File “/mnt/odm/odm-v0.4/opendm/system.py”, line 34, in run
raise Exception(“Child returned {}”.format(retcode))
Exception: Child returned 139

If anyone knows how to resolve this issue please guide me.

2

At first blush, this looks like an out of memory error. Do you have any memory monitoring you can refer to in order to confirm?

3

Hi @smathermather , project has less than 100 images and server has enough memory to process that.
Server Ram - 32 G
Server CPU - 8 Core

Same project running fine in my other server on same configuration where gdal is default version comes with ODM that is Gdal 2.1.3.
So it’s not memory issue.

4

Sorry: rereading. You have a 0.4 installation with an upgraded gdal. That could cause issues for sure. Any reason not to upgrade to 0.6? There have been a lot of really great changes recently, and it uses a more modern GDAL.

5

i don’t found 0.6 for ODM releases, there are 0.5 and 0.7. Is there any specific reason to update 0.6 not to 0.7.
Anyway i tried with ODM 0.7 once but processing time increases due to adding MVE pointcloud method rather than smvs.