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| <!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd"> |
| <concept id="MAX_SPILLED_RESULT_SPOOLING_MEM" rev="2.10.0 IMPALA-3200"> |
| <title>MAX_SPILLED_RESULT_SPOOLING_MEM Query Option</title> |
| <titlealts audience="PDF"> |
| <navtitle>MAX_SPILLED_RESULT_SPOOLING_MEM</navtitle> |
| </titlealts> |
| <prolog> |
| <metadata> |
| <data name="Category" value="Impala"/> |
| <data name="Category" value="Impala Query Options"/> |
| <data name="Category" value="Querying"/> |
| <data name="Category" value="Developers"/> |
| <data name="Category" value="Data Analysts"/> |
| </metadata> |
| </prolog> |
| <conbody> |
| <p>Use the <codeph>MAX_SPILLED_RESULT_SPOOLING_MEM</codeph> query option to |
| set the maximum amount of memory that can be spilled when spooling query |
| results. </p> |
| <p>If the amount of memory exceeds this value when spooling query results, |
| the coordinator fragment will block until the client has consumed enough |
| rows to free up more memory.</p> |
| <p>The <codeph>MAX_SPILLED_RESULT_SPOOLING_MEM</codeph> query option is |
| applicable only when query result spooling is enabled with the |
| <codeph>SPOOL_QUERY_RESULTS</codeph> query option set to |
| <codeph>TRUE</codeph>. </p> |
| <p>The value must be greater than or equal to the value of |
| <codeph>MAX_RESULT_SPOOLING_MEM</codeph>.</p> |
| <p>Setting the option to <codeph>0</codeph> or <codeph>-1</codeph> means the |
| memory is unbounded. </p> |
| <p>Values below <codeph>-1</codeph> are not allowed for this query |
| option.</p> |
| <p><b>Type:</b> |
| <codeph>INT</codeph></p> |
| <p><b>Default:</b><codeph> 1024 * 1024 * 1024 (1 GB)</codeph></p> |
| <p><b>Added in:</b> |
| <keyword keyref="impala34"/></p> |
| <p><b>Related information:</b> |
| <xref href="impala_fetch_rows_timeout_ms.xml#FETCH_ROWS_TIMEOUT_MS"/>, |
| <xref |
| href="impala_max_spilled_result_spooling_mem.xml#MAX_SPILLED_RESULT_SPOOLING_MEM" |
| />, <xref href="impala_spool_query_results.xml#SPOOL_QUERY_RESULTS"/></p> |
| </conbody> |
| </concept> |