Changelog

Cloud Storage connector:

1. Support parallel execution of GCS batch requests.

   Number of threads to execute batch requests configurable via property:

   fs.gs.batch.threads (default: 0)
   

   If fs.gs.batch.threads value is set to 0 then batch requests will be executed sequentially by caller thread.

2. Do not send batch request when performing operations (rename, delete, copy) on 1 object.

3. Add configuration properties to control batching of copy operations separately from other operations:

   fs.gs.copy.max.requests.per.batch (default: 30)
   fs.gs.copy.batch.threads (default: 0)
   

4. Fix RejectedExecutionException during parallel execution of GCS batch requests.

5. Change default values for GCS batch/directory operations properties:

   fs.gs.copy.with.rewrite.enable (default: false -> true)
   fs.gs.copy.max.requests.per.batch (default: 30 -> 1)
   fs.gs.copy.batch.threads (default: 0 -> 50)
   fs.gs.max.requests.per.batch (default: 30 -> 25)
   fs.gs.batch.threads (default: 0 -> 25)
   

BigQuery connector:

1. POM updates for GCS connector 1.6.8.