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  1. IMPALA
  2. IMPALA-4268 Rework coordinator buffering to buffer more data
  3. IMPALA-7312

Non-blocking mode for Fetch() RPC

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    Description

      Currently Fetch() can block for an arbitrary amount of time until a batch of rows is produced. It might be helpful to have a mode where it returns quickly when there is no data available, so that threads and RPC slots are not tied up.

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          blocks

          Improvement - An improvement or enhancement to an existing feature or task. IMPALA-8289 Stress test should use non-blocking fetches

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Open
          causes

          Bug - A problem which impairs or prevents the functions of the product. IMPALA-9032 Impala returns 0 rows over hs2-http without waiting for fetch_rows_timeout_ms timeout

          • Major - Major loss of function.
          • Resolved
          is related to

          Bug - A problem which impairs or prevents the functions of the product. IMPALA-2568 ExecuteStatement RPC (and beeswax query() RPC) should not block

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Open

          Bug - A problem which impairs or prevents the functions of the product. IMPALA-7555 impala-shell can hang in connect in certain cases

          • Major - Major loss of function.
          • Resolved
          relates to

          Sub-task - The sub-task of the issue IMPALA-8819 BufferedPlanRootSink should handle non-default fetch sizes

          • Major - Major loss of function.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. IMPALA-8962 FETCH_ROWS_TIMEOUT_MS should apply before rows are available

          • Major - Major loss of function.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. IMPALA-9113 Queries can hang if an impalad is killed after a query has FINISHED

          • Major - Major loss of function.
          • Resolved

          Improvement - An improvement or enhancement to an existing feature or task. IMPALA-4268 Rework coordinator buffering to buffer more data

          • Major - Major loss of function.
          • Resolved

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              stakiar Sahil Takiar
              tarmstrong Tim Armstrong
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              Dates

                Created:
                Updated:
                Resolved: