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https://issues.apache.org/jira/browse/BEAM-8089?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16916022#comment-16916022
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Harshit Dwivedi commented on BEAM-8089:
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But the BQ documentation says that this can be done,
[https://cloud.google.com/bigquery/docs/loading-data-local]
> Error while using customGcsTempLocation() with Dataflow
> -------------------------------------------------------
>
> Key: BEAM-8089
> URL: https://issues.apache.org/jira/browse/BEAM-8089
> Project: Beam
> Issue Type: Bug
> Components: io-java-gcp
> Affects Versions: 2.13.0
> Reporter: Harshit Dwivedi
> Assignee: Chamikara Jayalath
> Priority: Major
>
> I have the following code snippet which writes content to BigQuery via File
> Loads.
> Currently the files are being written to a GCS Bucket, but I want to write
> them to the local file storage of Dataflow instead and want BigQuery to load
> data from there.
>
>
>
> {code:java}
> BigQueryIO
> .writeTableRows()
> .withNumFileShards(100)
> .withTriggeringFrequency(Duration.standardSeconds(90))
> .withMethod(BigQueryIO.Write.Method.FILE_LOADS)
> .withSchema(getSchema())
> .withoutValidation()
> .withCustomGcsTempLocation(new ValueProvider<String>() {
> @Override
> public String get(){
> return "/home/harshit/testFiles";
> }
> @Override
> public boolean isAccessible(){
> return true;
> }})
> .withTimePartitioning(new TimePartitioning().setType("DAY"))
> .withCreateDisposition(BigQueryIO.Write.CreateDisposition.CREATE_IF_NEEDED)
> .withWriteDisposition(BigQueryIO.Write.WriteDisposition.WRITE_APPEND)
> .to(tableName));
> {code}
>
>
> On running this, I don't see any files being written to the provided path and
> the BQ load jobs fail with an IOException.
>
> I looked at the docs, but I was unable to find any working example for this.
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