Cassandra 2.2.1 将不会开始使用 cassandra -f

Question

我从 apache.cassandra 下载了 cassandra。

我已确保我的环境路径变量设置正确。

我在 Windows 命令提示符中输入：cassandra -f，这就是我得到的结果：

E:\apache-cassandra-2.2.1\bin>cassandra -f
Detected powershell execution permissions.  Running with enhanced startup scripts.
*---------------------------------------------------------------------*
*---------------------------------------------------------------------*

    WARNING!  Automatic page file configuration detected.
    It is recommended that you disable swap when running Cassandra
    for performance and stability reasons.

*---------------------------------------------------------------------*
*---------------------------------------------------------------------*
Exception calling "Start" with "0" argument(s): "The system cannot find the file specified"
At E:\apache-cassandra-2.2.1\conf\cassandra-env.ps1:249 char:5
+     $p.Start() | Out-Null
+     ~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : Win32Exception

Exception calling "WaitForExit" with "0" argument(s): "No process is associated with this object."
At E:\apache-cassandra-2.2.1\conf\cassandra-env.ps1:250 char:5
+     $p.WaitForExit()
+     ~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : InvalidOperationException

You cannot call a method on a null-valued expression.
At E:\apache-cassandra-2.2.1\conf\cassandra-env.ps1:251 char:5
+     $stderr = $p.StandardError.ReadToEnd()
+     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [], RuntimeException
    + FullyQualifiedErrorId : InvokeMethodOnNull

You cannot call a method on a null-valued expression.
At E:\apache-cassandra-2.2.1\conf\cassandra-env.ps1:255 char:9
+     if ($stderr.Contains("Error"))
+         ~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [], RuntimeException
    + FullyQualifiedErrorId : InvokeMethodOnNull

You cannot call a method on a null-valued expression.
At E:\apache-cassandra-2.2.1\conf\cassandra-env.ps1:268 char:5
+     $sa = $stderr.Split("""")
+     ~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [], RuntimeException
    + FullyQualifiedErrorId : InvokeMethodOnNull

Cannot index into a null array.
At E:\apache-cassandra-2.2.1\conf\cassandra-env.ps1:269 char:5
+     $env:JVM_VERSION = $sa[1]
+     ~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [], RuntimeException
    + FullyQualifiedErrorId : NullArray

You cannot call a method on a null-valued expression.
At E:\apache-cassandra-2.2.1\conf\cassandra-env.ps1:271 char:9
+     if ($stderr.Contains("OpenJDK"))
+         ~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [], RuntimeException
    + FullyQualifiedErrorId : InvokeMethodOnNull

Cannot index into a null array.
At E:\apache-cassandra-2.2.1\conf\cassandra-env.ps1:284 char:5
+     $pa = $sa[1].Split("_")
+     ~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [], RuntimeException
    + FullyQualifiedErrorId : NullArray

Cannot index into a null array.
At E:\apache-cassandra-2.2.1\conf\cassandra-env.ps1:285 char:5
+     $env:JVM_PATCH_VERSION=$pa[1]
+     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [], RuntimeException
    + FullyQualifiedErrorId : NullArray

*---------------------------------------------------------------------*
*---------------------------------------------------------------------*

    WARNING! Detected a power profile other than High Performance.
    Performance of this node will suffer.
    Modify conf\cassandra.env.ps1 to suppress this warning.

*---------------------------------------------------------------------*
*---------------------------------------------------------------------*
You cannot call a method on a null-valued expression.
At E:\apache-cassandra-2.2.1\conf\cassandra-env.ps1:413 char:9
+     if (($env:JVM_VERSION.CompareTo("1.7") -eq 1) -and ($env:JVM_ARCH ...
+         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [], RuntimeException
    + FullyQualifiedErrorId : InvokeMethodOnNull

You cannot call a method on a null-valued expression.
At E:\apache-cassandra-2.2.1\conf\cassandra-env.ps1:417 char:10
+     if ( (($env:JVM_VERSION.CompareTo("1.7") -ge 0) -and ($env:JVM_PA ...
+          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [], RuntimeException
    + FullyQualifiedErrorId : InvokeMethodOnNull

Exception calling "Start" with "0" argument(s): "The system cannot find the file specified"
At E:\apache-cassandra-2.2.1\bin\cassandra.ps1:249 char:9
+         $p.Start() | Out-Null
+         ~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : Win32Exception

Exception calling "WaitForExit" with "0" argument(s): "No process is associated with this object."
At E:\apache-cassandra-2.2.1\bin\cassandra.ps1:251 char:9
+         $p.WaitForExit()
+         ~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : InvalidOperationException


E:\apache-cassandra-2.2.1\bin>

这让我抓狂。我不明白为什么这这么困难。

我运行的是 Windows 10 Pro，并且有足够的空间。这是在笔记本电脑上，这应该可以工作，但当然，事实并非如此。

我的 cassandra.yaml 文件没问题。

我正在运行 localhost 作为我的“种子”。我应该将其设置为 127.0.0.1、localhost 还是只是本地计算机的 IP？

我需要调整我的“etc/hosts”文件吗？

任何人提供帮助将不胜感激。

Answer 1

1. 在里面：C:\Program Files\apache-cassandra-3.11.3\conf" folder open the file - "cassandra-env。
2. 搜索：JAVA_HOME
3. 它将显示由 java exe 文件的代码创建的路径。
4. 仔细检查并确保路径正确。

您可以通过直接更新文件或更新环境变量来完成此操作，如其他答案中所述。