[jira] [Updated] (BEAM-8906) Long BigQuery dry runs cause avalanche delay

["Beam JIRA Bot (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/BEAM-8906?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Beam JIRA Bot updated BEAM-8906:
--------------------------------
    Labels: stale-P2  (was: )

> Long BigQuery dry runs cause avalanche delay
> --------------------------------------------
>
>                 Key: BEAM-8906
>                 URL: https://issues.apache.org/jira/browse/BEAM-8906
>             Project: Beam
>          Issue Type: Bug
>          Components: io-java-gcp
>    Affects Versions: 2.16.0
>         Environment: Google Cloud Platform
>            Reporter: June Oh
>            Priority: P2
>              Labels: stale-P2
>
> Reproduction Steps:
> 1. Compose a BigQuery SELECT query that will take over 80 seconds for a dry run.
> 2. Run the query with Beam SDK's BigQueryIO.
> 3. Observe the 10+ minute delay before the actual query job is created.
> When running readTableRows(), BigQueryIO attempts to estimate the query size by performing a dry run, even if withoutValidation() is set. If the request takes over 80 seconds (RetryHttpRequestInitializer.HANGING_GET_TIMEOUT_SEC), RetryHttpRequestInitializer will time out and retry, up to 9 times (BigQueryServicesImpl.MAX_RPC_RETRIES). Hence, once a dry run duration crosses the 80 second tipping point, it causes an inevitable avalanche of a 720-second delay. Considering the fact that size estimation is not a requirement in running the query [1], BigQueryIO should provide a way to circumvent the redundant delay, especially in consideration of time-critical enterprise workloads.
> There can be several ways to address this:
> - increasing the timeout threshold (which will still create a tipping point);
> - preventing the dry run requests from retrying; or
> - adding an option to skip the size estimation within serializeToCloudSource().
> [1] https://github.com/apache/beam/blob/2ec3b0495c191597c9a88830d25a2c360b3277e0/runners/google-cloud-dataflow-java/src/main/java/org/apache/beam/runners/dataflow/internal/CustomSources.java#L75



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