Transport endpoint is not connected, Bus error

[Narayana-Rao]

Unable to download or process Sentinel-1 SLC .zip files (~ 4GB)

If I try to download/copy any Sentinel-1 SLC .zip file to the workspace, the processing is breaking and reconnecting the workspace buckets.

> wget https://datapool.asf.alaska.edu/SLC/SA/S1A_IW_SLC__1SDV_20190126T002213_20190126T002240_025641_02D8E5_6F5E.zip

Saving to: ‘S1A_IW_SLC__1SDV_20190126T002213_20190126T002240_025641_02D8E5_6F5E.zip’

S1A_IW_SLC__1SDV_20190126T002213_20190126T002240_0256  26%[===============================>                                                                                          ]   1.11G  38.7MB/s    in 34s     


Cannot write to ‘S1A_IW_SLC__1SDV_20190126T002213_20190126T002240_025641_02D8E5_6F5E.zip’ (Transport endpoint is not connected).

To Reproduce
Steps to reproduce the behavior:

1. Try downloading any Sentinel-1 SLC granule into workspace buckets "wget https://datapool.asf.alaska.edu/SLC/SA/S1A_IW_SLC__1SDV_20190126T002213_20190126T002240_025641_02D8E5_6F5E.zip"

Workaround to download
We can download into the /projects directory but cannot copy/move the files for further processing.

Bus error while processing
While trying to process them directly from /projects directory using ISCE2 , I got Bus error as shown below
/projects/../projects/my-public-bucket/iscetest/s1stack/vv/run_files/run_01_unpack_topo_reference: line 1: 297 Bus error SentinelWrapper.py -c /projects/my-public-bucket/iscetest/s1stack/vv/configs/config_reference

[wildintellect]

@Narayana-Rao

1. what directory in your ADE are you when you execute this command?
2. what command in ISCE2 do you run on the s1 file to test processing?

[wildintellect]

Transport_endpoint sounds like you're trying to download directly to a path with the name bucket in it. This is an S3 location, downloading very large files directly to S3 with wget/maap-py is not advised. Best practices would be to download to a local folder first.

Using this S1 example, I tested copying from EarthDataCloud.

Modified search to get the granule of interest:

results = maap.searchGranule(cmr_host="cmr.earthdata.nasa.gov",
                                short_name='SENTINEL-1A_SLC',
                                producer_granule_id="S1A_IW_SLC__1SDV_20190126T002213_20190126T002240_025641_02D8E5_6F5E",
                                limit=10,
                                )

In an ISCE2 workspace you might also need to set the host on maap import (bug the current image points to dit)

maap = MAAP(maap_host="api.maap-project.org")

TODO: Test ISCE2 process, need more info from @Narayana-Rao on how to do that.

[Narayana-Rao]

Thanks @wildintellect !

maap.downloadGranule() is working fine to download the granules now.

However, the bus error still persist while processing. As suggested, i have avoided using buckets either in input or output paths, by directly reading and writing to projects folder.

1. I am using projects folder to store input data and processed data
2. SentinelWrapper.py command from topsStack workflow

Here are the details of the error.

(isce2) root@workspace3xf7prc53yo79zll:~# ./run_files/run_01_unpack_topo_reference Completed Parsing the Configuration file Functions to be executed: ['Function-1', 'Function-2'] Running: Sentinel1_TOPS ['--dirname', '/projects/S1B_IW_SLC__1SDV_20180423T161524_20180423T161551_010613_0135DD_33F0.zip', '--swaths', '1 2 3', '--orbit', '/projects/orbits/20180423/S1B_OPER_AUX_POEORB_OPOD_20210312T225246_V20180422T225942_20180424T005942.EOF', '--outdir', '/projects/reference', '--auxdir', '/projects/aux', '--bbox', '19.4000 19.6000 -155.5000 -155.3000', '--pol', 'vv'] Using default ISCE Path: /opt/conda/envs/isce2/lib/python3.10/site-packages/isce Input XML files: ['/vsizip//projects/S1B_IW_SLC__1SDV_20180423T161524_20180423T161551_010613_0135DD_33F0.zip/S1B_IW_SLC__1SDV_20180423T161524_20180423T161551_010613_0135DD_33F0.SAFE/annotation/s1b-iw1-slc-vv-20180423t161526-20180423t161551-010613-0135dd-004.xml'] Input TIFF files: ['/vsizip//projects/S1B_IW_SLC__1SDV_20180423T161524_20180423T161551_010613_0135DD_33F0.zip/S1B_IW_SLC__1SDV_20180423T161524_20180423T161551_010613_0135DD_33F0.SAFE/measurement/s1b-iw1-slc-vv-20180423t161526-20180423t161551-010613-0135dd-004.tiff'] Manifest files: ['/vsizip//projects/S1B_IW_SLC__1SDV_20180423T161524_20180423T161551_010613_0135DD_33F0.zip/S1B_IW_SLC__1SDV_20180423T161524_20180423T161551_010613_0135DD_33F0.SAFE/manifest.safe'] MANS: /projects/S1B_IW_SLC__1SDV_20180423T161524_20180423T161551_010613_0135DD_33F0.zip S1B_IW_SLC__1SDV_20180423T161524_20180423T161551_010613_0135DD_33F0.SAFE/manifest.safe Setting IPF version to : 002.90 Extracting orbit from Orbit File: /projects/orbits/20180423/S1B_OPER_AUX_POEORB_OPOD_20210312T225246_V20180422T225942_20180424T005942.EOF Number of Bursts before cropping: 9 Number of Bursts after cropping: 3 /opt/conda/envs/isce2/lib/python3.10/site-packages/osgeo/gdal.py:287: FutureWarning: Neither gdal.UseExceptions() nor gdal.DontUseExceptions() has been explicitly called. In GDAL 4.0, exceptions will be enabled by default. warnings.warn( ./run_files/run_01_unpack_topo_reference: line 1: 1653 Bus error SentinelWrapper.py -c /projects/configs/config_reference