Michael Smith created IMPALA-14686:
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Summary: Enable long polling by default
Key: IMPALA-14686
URL: https://issues.apache.org/jira/browse/IMPALA-14686
Project: IMPALA
Issue Type: Improvement
Components: Clients, Frontend
Reporter: Michael Smith
IMPALA-13294 added support for long polling in Impala and impala-shell. This
behavior is strictly better than the current behavior, allowing Impala clients
to eliminate delays in completing show queries and making the experience of
using Impala more responsive.
On the fringes, clients that don't know about long polling may have slightly
different timing with certain queries, as the RPC may wait the
{{long_polling_time_ms}} timeout then do its own sleep.
Set {{long_polling_time_ms}} to a short period - say 100ms - to provide better
support for low-latency queries.
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