WebbHDFS上传缓慢: INFO hdfs.DataStreamer: Slow ReadProcessor read fields for block 技术标签: HDFS 大数据 问题描述 在往HDFS 上导数据时遇到的问题,文件大概有100G左右,总个数有100个 近两天往HDFS上传文件时发现,hdfs报这个告警后,上传就变的特别慢。 但是可以正常上传,上传上去的文件大小无异常,只是传输很慢 报错内容删除了敏感信息 Webbför 2 dagar sedan · It is hard to think of any field of science that at its inception was not a series of engineering problems. But, there may be specific subdomains where the science came first. People have told me that no one could have even conceived of a laser before scientific understanding a photos emerged, but I don’t know if that is true.
Advanced tuning: finding and fixing slow Elasticsearch queries
Webb5 feb. 2024 · STEP1 首先怀疑是调度不合理,job之间资源占用卡死. 进入管理页: http://f04:8088/cluster/scheduler 找到卡死的job,选出资源占用最大的job将其kill. 表现1: 资源空闲情况下,即使是小job,也会在reduce的最终阶段卡死不动.最显著的特征是在reduce100%的状态下,依然卡死不动. 查看典型job后发现有如下log: 1 2 3 4 5 6 7 WARN … WebbSlow ReadProcessor read fields for block BP-XXX:blk_XXX took 2756ms (threshold=100ms); ack: seqno: 3341 status: SUCCESS status: SUCCESS status: SUCCESS downstreamAckTimeNanos: 2751531959 4: "\000\000\000", targets: [XXX, XXX, XXX] There is an ack seqno in the log, so we can find which packet cause write slow. song for a rainy morning tab
Spark开发问题集锦1_slow waitforackedseqno took_为一个人走几 …
Webb9 maj 2024 · 一、安装 基于 mac 操作系统 安装 jdk jdk 下载地址 2. 安装 pyspark 二、读取 HDFS 文件 读 json 注意,如果是多行的 json,需要用 “multiLine” 模式 Webb1. Summary "Slow ReadProcessor" and "Slow BlockReceiver" are often caused by high cluster load or unhealthy certain nodes. This article mainly helps you confirm whether it … Webb28 nov. 2024 · 某环境中查看HBase日志中报Slow ReadProcessor read fields,查看相关解释说这个问题主要是由于hdfs引起的,因为hbase作为客户端向hdfs写入数据进行持久 … song for athene sheet music