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Flink1.18.1和CDC2.4.1 本地没问题提交任务到服务器报错java.lang.NoClassDefFoundError: Could not initialize class io.debezium.connector.mysql.MySqlConnectorConfig 这个错误...

[帮助文档] Java HTTPS请求报错PKIX path building failed

Java客户端访问HTTPS站点（服务器）时，Java客户端的会试图构建一个从当前服务器证书到信任的根证书颁发机构（CA）的信任路径，如果无法成功构建这条路径，就可能抛出如下异常：javax.net.ssl.SSLHandshakeException：表示SSL/TLS握手失败。可能是由于服务器证书...

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[帮助文档] 采样日志中报错为java.net.SocketException: Socket closed时的解决方案

问题现象如果压测的是HTTPS接口，同时在压测进行过程中出现RT（响应时间）逐渐变高，TPS和成功率都有跌零或者相应的趋势。这时，单击压测报告右上角的查看采样日志，单击操作列的点击查看详情，打开采样日志看到的报错如下（选择HTTP模板更清晰）。压测报告查看采样日志操作点击查看详情详细的文本参考如下。...

[帮助文档] 常见问题JavaGC日志分析报错

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[帮助文档] Dataphin如何解决创建MaxCompute自定义函数报错java.net.SocketException:Networkisunreachable(connectfailed)

问题描述创建MaxCompute自定义函数时，在代码中调用了其他API，或者有访问外部网络的操作。本地调用UDF函数正常，但是传入Dataphin注册之后，报错“java.net.SocketException: Network is unreachable (connect failed)”。问题...

[帮助文档] Dataphin管道任务同步数据报错java.lang.OutOfMemoryError:Compressedclassspace

问题描述用户使用管道任务同步数据时报错“java.lang.OutOfMemoryError: Compressed class space”。问题原因管道任务运行过程中压缩类空间溢出，默认大小1GB。解决方案创建一个shell任务，内容如下：@required_resource{required_...

我通过yarn-per-job模式提交任务给我报错Caused by: java.util.conc

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【问题】spark运行python写的mapreduce任务，hadoop平台报错，java.net.ConnectException: 连接超时

问题：用spark-submit以yarn-client方式提交任务，在集群的某些节点上的任务出现连接超时的错误，排查过各种情况后，确定在防火墙配置上出现问题。原因：我猜测是python程序启动后，作为Server，hadoop中资源调度是以java程序作为Client端访问， Python启...

e-mapreduce运行任务时经常报错Caused by: java.lang.OutOfMemoryError: Java heap space

e-mapreduce运行任务时经常报错Caused by: java.lang.OutOfMemoryError: Java heap space 查看系统内存都是正常的，这个内存怎么配置呢？

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