Question

我正试图从csv复制到cassandra db，如下所示：

cqlsh:customer_details> copy real_estate (street,city,zip,state) from 'C:\Users\
kiriti.k\Desktop\Sacramentorealestatetransactions.csv' WITH DELIMITER = ';' AND
HEADER = TRUE;

但是收到错误：

Starting copy of customer_details.real_estate with columns ['street', 'city', 'z
ip', 'state'].

Error starting import process:

    Can't pickle <type 'thread.lock'>: it's not found as thread.lock
    can only join a started process
    cqlsh:customer_details> Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "C:\Program Files\DataStax Community\python\lib\multiprocessing\forking.p
    y", line 380, in main
        prepare(preparation_data)
      File "C:\Program Files\DataStax Community\python\lib\multiprocessing\forking.p
    y", line 489, in prepare
        file, path_name, etc = imp.find_module(main_name, dirs)
    ImportError: No module named cqlsh

我不知道这个错误意味着什么。我对卡桑德拉家族很新。任何人都已经解决了这类问题。请帮忙。

Answer 1

cqlsh是否可以工作，还是仅仅是复制命令问题？我怀疑这与https://issues.apache.org/jira/browse/CASSANDRA-3767有关，除了3767在osx上，自制软件错过了一个依赖项，你正在运行windows。为了解决这个问题，你可以

1）尝试没有python依赖的brian的cassandra-loader

https://github.com/brianmhess/cassandra-loader

或

2）安装python依赖项，如票证

中所示

下载 http://svn.apache.org/repos/asf/cassandra/trunk/pylib/setup.py，和和cqlshlib来自 http://svn.apache.org/repos/asf/cassandra/trunk/pylib/cqlshlib/，和然后运行python install setup.py。

错误从csv复制到cassandra db

1 个答案: