S3Objectstore fails uploading large files

[VJalili]

s3_multipart_upload fails to upload a file of size 15MB.
The object_store_conf.xml which I'm using looks as the following:

<?xml version="1.0"?>
<object_store type="s3" id="corral">
    <files_dir path="/galaxy/test/files"/>
    <auth access_key="..." secret_key="..." />
    <bucket name="vahid-objectstore-tests" use_reduced_redundancy="False" />
    <cache path="database/object_store_cache" size="1000" />
    <extra_dir type="job_work" path="database/job_working_directory_s3"/>
    <extra_dir type="temp" path="database/tmp_s3"/>
</object_store>

and I get an error with the following trace:

  File "/Users/user/galaxy/lib/galaxy/objectstore/s3.py", line 604, in update_from_file
    self._push_to_os(rel_path, source_file)
  File "/Users/user/galaxy/lib/galaxy/objectstore/s3.py", line 384, in _push_to_os
    multipart_upload(self.s3server, self.bucket, key.name, source_file, mb_size)
  File "/Users/user/galaxy/lib/galaxy/objectstore/s3_multipart_upload.py", line 87, in multipart_upload
    enumerate(split_file(tarball, mb_size, cores)))):
  File "/Users/user/galaxy/lib/galaxy/objectstore/s3_multipart_upload.py", line 104, in wrap
    return func(self, timeout=timeout if timeout is not None else 1e100)
  File "/Users/user/galaxy/lib/galaxy/objectstore/s3_multipart_upload.py", line 104, in wrap
    return func(self, timeout=timeout if timeout is not None else 1e100)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/multiprocessing/pool.py", line 668, in next
    raise value
TypeError: transfer_part() takes exactly 6 arguments (1 given)

[dannon]

There's a PR open for fixing this, which looked good to me at first glance, I was just hoping to dig into it a little more and figure out what changed causing the errors

[VJalili]

I guess #4315 is the PR. Thanks for the info, I'm closing this issue and hope the PR resolves this issue.