安装并配置了Confluent 5.5.1,但无法>confluent local start以下是我执行的步骤和得到的错误。
root@ubuntu-mini:~/confluent/confluent-5.5.1# confluent local start
The local commands are intended for a single-node development environment
only, NOT for production usage. https://docs.confluent.io/current/cli/index.html
U
我按照这个指南在ubuntu17.10上安装postgres9.3,但在我实际尝试安装的代码行(sudo apt-get install postgresql-9.3 pgadmin3)之后,我得到了以下输出:
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package postgresql-9.3 is not available, but is referred to by another package.
This may mean that
我已经在ubuntu 16.04上使用以下命令安装了cassandra:
sudo apt-get install cassandra
它现在已经安装好了,当我运行命令时:
sudo service cassandra status
它显示了以下内容:
● cassandra.service - LSB: distributed storage system for structured data
Loaded: loaded (/etc/init.d/cassandra; bad; vendor preset: enabled)
Active: active (exited) since
我正在尝试运行普通的,这是一个由./gradlew clean appRun启动的gradle应用程序。
我收到了肯定与groovy相关的错误:
Exception in thread "main" java.lang.NullPointerException: Cannot invoke method getText() on null object
at org.codehaus.groovy.runtime.NullObject.invokeMethod(NullObject.java:91)
at org.codehaus.groovy.
我想知道如何抑制Google flow输出,使我的输出更干净。
下面是Quickstart.py代码:
creds =None
if os.path.exists('token.pickle'):
first_time_login = False
with open('token.pickle', 'rb') as token:
creds = pickle.load(token)
# If there are no (valid) credentials ava