小编NEO*_*NEO的帖子

我们已经安装了新的gpdb数据库。但是，当尝试连接template0数据库时。

[gpadmin@mdw~]$ psql -d template0
psql: FATAL:  database "template0" is not currently accepting connections
[gpadmin@mdw~]$ 

我们试图更新旗帜

template1=# UPDATE pg_database SET datallowconn = TRUE WHERE datname = 'template0';
ERROR:  permission denied: "pg_database" is a system catalog
template1=# 

但是，不允许更新FLAG

当我尝试使用 Intellij IDEA 访问 Spark 流应用程序时

环境

Spark核心版本2.2.0 Intellij IDEA 2017.3.5版本

附加信息：Spark 正在 Yarn 模式下运行。

出现错误：

Using Spark's default log4j profile: org/apache/spark/log4j-defaults.properties
Exception in thread "main" java.lang.ExceptionInInitializerError
    at kafka_stream.kafka_stream.main(kafka_stream.scala)
Caused by: org.apache.spark.SparkException: A master URL must be set in your configuration
    at org.apache.spark.SparkContext.<init>(SparkContext.scala:376)
    at org.apache.spark.SparkContext$.getOrCreate(SparkContext.scala:2509)
    at org.apache.spark.sql.SparkSession$Builder$$anonfun$6.apply(SparkSession.scala:909)
    at org.apache.spark.sql.SparkSession$Builder$$anonfun$6.apply(SparkSession.scala:901)
    at scala.Option.getOrElse(Option.scala:121)
    at org.apache.spark.sql.SparkSession$Builder.getOrCreate(SparkSession.scala:901)
    at kafka_stream.InitSpark$class.$init$(InitSpark.scala:15)
    at kafka_stream.kafka_stream$.<init>(kafka_stream.scala:6)
    at kafka_stream.kafka_stream$.<clinit>(kafka_stream.scala)
    ... 1 more

Process finished with exit code 1

试过这个

  val spark: SparkSession = SparkSession.builder()
    .appName("SparkStructStream")
    .master("spark://127.0.0.1:7077")
    //.master("local[*]")
    .getOrCreate()

仍然遇到相同的 MASTER …