Tableau Server で抽出の更新を実行しようとすると、次のエラーが発生する場合があります。
"java.lang.RuntimeException: [Cloudera][ImpalaODBC] (110) Error while executing a query in Impala: [HY000] : Rejected query from pool root.s_app_tableau: request memory needed xxx GB is greater than pool max mem resources xxx GB. (... Impala でのクエリ実行中のエラー: [HY000] : プール root.s_app_tableau からのクエリの拒否: 要求に必要なメモリ xxx GB はプールの最大メモリ リソース xxx GB を上回っています。)
Use the MEM_LIMIT query option to indicate how much memory is required per node. The total memory needed is the per-node MEM_LIMIT times the number of nodes executing the query. See the Admission Control documentation for more information." (ノードあたりの必要なメモリ量を指示するには、MEM_LIMIT クエリ オプションを使用します。必要な合計メモリは、ノードあたりの MEM_LIMIT にクエリを実行するノード数を掛けたものです。詳細については、Admission Control のドキュメントを参照してください。)
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