Fokko commented on issue #7519: FLINK-11378 - Allow writing to Hadoop 
compatible Filesystems via Hado…
URL: https://github.com/apache/flink/pull/7519#issuecomment-468696725
 
 
   We're running the GCS connector using the HDFS interface. We're having some 
issues with performance, after firing up the logging we seem some renaming 
going on. Would this be something that we can get rid of, or should we 
implement the StreamingFileSink with GCS ourselves? Any guidance?
   
   A snipper from the logs:
   ```
   Successfully copied 
gs://fokko-events-raw/yyyymmdd=2019-03-01/hh=14/.part-239-6.inprogress.648a93c1-61f5-4a0e-aa50-cc6685c62050
 to gs://fokko-events-raw/yyyymmdd=2019-03-01/hh=14/part-239-6
   
deleteObjects([gs://fokko-events-raw/yyyymmdd=2019-03-01/hh=14/.part-239-6.inprogress.648a93c1-61f5-4a0e-aa50-cc6685c62050])
   getItemInfo: gs://fokko-events-raw/yyyymmdd=2019-03-01/hh=15/part-219-7/: 
exists: no
   listObjectNames(fokko-events-raw, yyyymmdd=2019-03-01/hh=15/part-219-7/, /, 
1)
   listStorageObjectsAndPrefixes(fokko-events-raw, 
yyyymmdd=2019-03-01/hh=15/part-219-7/, /, false, 1)
   createListRequest(fokko-events-raw, yyyymmdd=2019-03-01/hh=15/part-219-7/, 
/, false, 1)
   listStorageObjectsAndPrefixesPage({bucket=fokko-events-raw, delimiter=/, 
includeTrailingDelimiter=false, maxResults=2, 
prefix=yyyymmdd=2019-03-01/hh=15/part-219-7/}, 1)
   Successfully deleted 
gs://fokko-events-raw/yyyymmdd=2019-03-01/hh=14/.part-239-6.inprogress.648a93c1-61f5-4a0e-aa50-cc6685c62050
 at generation 1551452605129306
   Successfully copied 
gs://fokko-events-raw/yyyymmdd=2019-03-01/hh=14/.part-294-6.inprogress.806455c4-9a36-49f8-9ae9-6e00b90bbdd2
 to gs://fokko-events-raw/yyyymmdd=2019-03-01/hh=14/part-294-6
   
deleteObjects([gs://fokko-events-raw/yyyymmdd=2019-03-01/hh=14/.part-294-6.inprogress.806455c4-9a36-49f8-9ae9-6e00b90bbdd2])
   Successfully copied 
gs://fokko-events-raw/yyyymmdd=2019-03-01/hh=15/.part-33-7.inprogress.fec75b00-723c-452e-8041-d8608c9ad07a
 to gs://fokko-events-raw/yyyymmdd=2019-03-01/hh=15/part-33-7
   
deleteObjects([gs://fokko-events-raw/yyyymmdd=2019-03-01/hh=15/.part-33-7.inprogress.fec75b00-723c-452e-8041-d8608c9ad07a])
   Successfully deleted 
gs://fokko-events-raw/yyyymmdd=2019-03-01/hh=14/.part-294-6.inprogress.806455c4-9a36-49f8-9ae9-6e00b90bbdd2
 at generation 1551452603846557
   Successfully deleted 
gs://fokko-events-raw/yyyymmdd=2019-03-01/hh=15/.part-33-7.inprogress.fec75b00-723c-452e-8041-d8608c9ad07a
 at generation 1551452602868674
   
getItemInfo(gs://fokko-events-raw/yyyymmdd=2019-03-01/hh=14/.part-33-6.inprogress.27ca9b20-6f8a-476c-9a0d-0f97852b595d)
   
getObject(gs://fokko-events-raw/yyyymmdd=2019-03-01/hh=14/.part-33-6.inprogress.27ca9b20-6f8a-476c-9a0d-0f97852b595d)
   
getItemInfo(gs://fokko-events-raw/yyyymmdd=2019-03-01/hh=14/.part-33-6.inprogress.27ca9b20-6f8a-476c-9a0d-0f97852b595d/)
   
getObject(gs://fokko-events-raw/yyyymmdd=2019-03-01/hh=14/.part-33-6.inprogress.27ca9b20-6f8a-476c-9a0d-0f97852b595d/)
   Successfully copied 
gs://fokko-events-raw/yyyymmdd=2019-03-01/hh=15/.part-219-7.inprogress.79dbbc8c-8c89-49c7-989f-4a6460eb3b25
 to gs://fokko-events-raw/yyyymmdd=2019-03-01/hh=15/part-219-7
   
deleteObjects([gs://fokko-events-raw/yyyymmdd=2019-03-01/hh=15/.part-219-7.inprogress.79dbbc8c-8c89-49c7-989f-4a6460eb3b25])
   ```

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