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Yang, Tong 3b1f73dece MRS UMN 2.0.38.SP20 version 
Reviewed-by: Hasko, Vladimir <vladimir.hasko@t-systems.com>
Co-authored-by: Yang, Tong <yangtong2@huawei.com>
Co-committed-by: Yang, Tong <yangtong2@huawei.com>
2022-12-13 12:03:34 +00:00

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How Do I Do If the Spark Job Error "UnknownScannerExeception" Is Reported?

Symptom

Spark jobs run slowly. Warning information is printed in run logs, and the error cause is UnknownScannerExeception.

Solution

Before running a Spark job, adjust the value of hbase.client.scanner.timeout.period (for example, from 60 seconds to 120 seconds).

Log in to FusionInsight Manager and choose Cluster > Services > HBase. Click Configurations then All Configurations, search for hbase.client.scanner.timeout.period, and change its value to 120000 (unit: ms).

Parent topic: Job Development