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Impala-shell periodically calls GetExecSummary() when the query is queuing or running. If the query is being retried, GetExecSummary() should return the TExecSummary of the retried query. So the progress bar and live_summary can reflect the most recent state. This patch also modifies get_summary() to return retry information in error_logs of TExecSummary. Impala-shell and other clients can print the info right after the query starts being retried. Modified impala-shell to print the retried query link when the retried query is running. Example output when the retried query is running: Query: select count(*) from functional.alltypes where bool_col = sleep(60) Query submitted at: 2020-06-18 22:08:49 (Coordinator: http://quanlong-OptiPlex-BJ:25000) Query progress can be monitored at: http://quanlong-OptiPlex-BJ:25000/query_plan?query_id=9444fe7f0df0da28:29134b0800000000 Failed due to unreachable impalad(s): quanlong-OptiPlex-BJ:22001 Retrying query using query id: 5748d9a3ccc28ba8:a75e2fab00000000 Retried query link: http://quanlong-OptiPlex-BJ:25000/query_plan?query_id=5748d9a3ccc28ba8:a75e2fab00000000 [############################### ] 50% Tests: - Manually verify the progress bar and live_summary work when the query is being retried. - Add tests in test_query_retries.py to validate the get_summary() results. Change-Id: I8f96919f00e0b64d589efd15b6b5ec82fb725d56 Reviewed-on: http://gerrit.cloudera.org:8080/16096 Reviewed-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com> Tested-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com>