为什么使用 Net::Cassandra::Easy 和 Cassandra 0.5x 插入行时会出现错误？

发布于 2024-08-25 14:38:26 字数 892 浏览 6 评论 0原文

使用 Perl 模块 Net::Cassandra::Easy 进行接口时使用 Cassandra，我使用以下代码从列系列 Standard1 中的行 row[123] 读取列 col[123]：

my $cassandra = Net::Cassandra::Easy->new(keyspace => 'Keyspace1', server => 'localhost');
$cassandra->connect();
my $result = $cassandra->get(['row1', 'row2', 'row3'], family => 'Standard1', byname => ['col1', 'col2', 'col3']);

这有效正如预期的那样。

但是，当尝试使用 .. .. 插入行 row1 时

$result = $cassandra->mutate(['row1'], family => 'Standard1', insertions => { "col1" => "Value to set." });

，我收到错误消息 Can't use string ("0") as a SCALAR ref while "strict refs" in use at .../Net/GenThrift/Thrift/BinaryProtocol.pm 第 376 行。

我做错了什么？

原文

When using the Perl module Net::Cassandra::Easy to interface with Cassandra I use the following code to read colums col[123] from rows row[123] in the column-family Standard1:

my $cassandra = Net::Cassandra::Easy->new(keyspace => 'Keyspace1', server => 'localhost');
$cassandra->connect();
my $result = $cassandra->get(['row1', 'row2', 'row3'], family => 'Standard1', byname => ['col1', 'col2', 'col3']);

This works as expected.

However, when trying to insert row row1 with ..

$result = $cassandra->mutate(['row1'], family => 'Standard1', insertions => { "col1" => "Value to set." });

.. I get the error message Can't use string ("0") as a SCALAR ref while "strict refs" in use at .../Net/GenThrift/Thrift/BinaryProtocol.pm line 376.

What am I doing wrong?

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蝶…霜飞 2024-09-01 14:38:26

它看起来像库中的错误：（

sub readByte
{
    my $self  = shift;
    my $value = shift;

    my $data = $self->{trans}->readAll(1);
    my @arr = unpack('c', $data);
    $value = $arr[0];    # <~ line 376
    return 1;
}

来自 Net::GenThrift::Thrift::BinaryProtocol）

显然，该 sub 是从库中的某个位置调用的，其中 $value不是变量，而是常量标量。我会向作者报告该错误。

It looks like a bug in the library:

sub readByte
{
    my $self  = shift;
    my $value = shift;

    my $data = $self->{trans}->readAll(1);
    my @arr = unpack('c', $data);
    $value = $arr[0];    # <~ line 376
    return 1;
}

(from Net::GenThrift::Thrift::BinaryProtocol)

Apparently that sub is being called from somewhere in the library where $value is not a variable, but a constant scalar. I'd report the bug to the authors.

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