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| title: Limit Parameter Adjustment |
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| This article describes how to adjust parameters when resources such as memory and CPU are insufficient. |
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| ## 1. Insufficient queue resources |
| An error is reported during task execution: error code 12001, the error message queue has insufficient CPU resources, you can adjust the number of Spark executors |
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| Click on the management console--parameter configuration--IDE--Spark--display advanced settings--woker engine resource settings (2)--adjust the concurrent number of executors |
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| Or set the global setting to adjust the upper limit of queue resource usage. |
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| ## 2. The number of queue instances exceeds the limit |
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| An error is reported during task execution: error code 12003, the number of error message queue instances exceeds the limit |
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| Click Management Console--Parameter Configuration--Global Settings--Queue Resources--Maximum Number of Yarn Queue Instances [wds.linkis.rm.yarnqueue.instance.max] |
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| ## 3. Global driver memory usage limit |
| An error is reported during task execution: error code 12004, error message upper limit of global driver memory usage, lower driver memory can be set |
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| Click Management Console--Parameter Configuration--Global Settings--Queue Resources--Maximum Number of Yarn Queue Memory 队列内存使用上限[wds.linkis.rm.yarnqueue.memory.max] |
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| ## 4. Exceeded the upper limit of the CPU number of the global driver |
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| An error is reported during task execution: error code 12005, the error message exceeds the upper limit of the number of CPUs in the global drive, and idle engines can be cleaned up |
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| Click Management Console - Parameter Configuration - Global Settings - Queue Resources - Upper Limit of The Number of Engine Cores[wds.linkis.rm.client.core.max] |
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| Or solve it by cleaning idle engines. |
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| ## 5. Exceeded the upper limit of the engine's maximum concurrent number |
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| An error is reported during task execution: error code 12006, the error message exceeds the maximum concurrency limit of the engine, and idle engines can be cleaned up |
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| Click Management Console--Parameter Configuration--Global Settings--Queue Resources--Maximum concurrent number of each engine globally [wds.linkis.rm.instance] |
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| **Spark engine** |
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| **Hive engine** |
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| Other engine settings are similar to Spark and Hive engines. |
