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frank@ZZHPC:~$ swapon --show NAME TYPE SIZE USED PRIO /dev/sdc partition 4G 0B -2 frank@ZZHPC:~$ free -h total used free shared buff/cache available M
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posted @ 2025-12-24 09:53
ZhangZhihuiAAA
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Massively Parallel Processing (MPP) is a computing architecture where a large number of independent processors (or "nodes") work together to solve a s
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posted @ 2025-12-24 09:22
ZhangZhihuiAAA
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我已经安装了Flink 2.0.1，它包含Flink SQL Gateway吗？ 1. 它是官方标准组件吗？ 是的。 从 Flink 1.16 版本开始，Flink SQL Gateway 就已经正式从外部项目合并到了 Flink 的核心发行包中。 只要你安装的是最近两年的主流版本（如 1.16,
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posted @ 2025-12-22 21:06
ZhangZhihuiAAA
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(airflow-venv) frank@ZZHPC:~/download$ wget https://dlcdn.apache.org/zeppelin/zeppelin-0.12.0/zeppelin-0.12.0-bin-all.tgz (airflow-venv) frank@ZZHPC:~
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posted @ 2025-12-22 20:05
ZhangZhihuiAAA
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Flink SQL Client 是 Flink 自带的一个命令行工具，允许用户以交互的方式编写和提交 SQL 任务。 以下是进入该界面的步骤以及在面试中需要注意的细节： 1. 进入 Flink SQL Client 的步骤 要启动 SQL Client，你首先需要有一个正在运行的 Flink 集群
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posted @ 2025-12-22 18:32
ZhangZhihuiAAA
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In Apache Spark, Accumulators are shared variables that can only be "added" to through an associative and commutative operation. They are primarily us
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posted @ 2025-12-22 15:38
ZhangZhihuiAAA
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What's the difference between binlog and redolog? In MySQL, the binlog (binary log) and redolog (redo log) are often confused because they both record
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posted @ 2025-12-22 11:26
ZhangZhihuiAAA
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Installing the Kafka Schema Registry typically involves using the Confluent Platform distribution, as the registry is a Confluent-led project. You can
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posted @ 2025-12-19 09:20
ZhangZhihuiAAA
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A Kafka Schema Registry is essentially a "librarian" for your data structures. Since Kafka brokers only see messages as raw byte arrays, they don’t ca
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posted @ 2025-12-19 09:06
ZhangZhihuiAAA
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At its core, a Python dataclass (introduced in Python 3.7) is a decorator used to automatically generate "boilerplate" code for classes that primarily
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posted @ 2025-12-18 21:34
ZhangZhihuiAAA
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