我已经在kubernetes环境中将cassandra集群部署为pods。我有2个cassandra pods/节点，每个都有12gbram，1个vcpu，并使用分布式数据存储。当我尝试使用copy命令加载数据时，它说“子进程意外死亡，正在中止”。

cqlsh> COPY aarun.emp FROM '/home/etolaru/cass-data/testfile' WITH DELIMITER='|' AND HEADER = TRUE;
Using 16 child processes
Starting copy of aarun.emp with columns [rownumber, cell, counternames, countervals, datetime, group]                                                                                                          .
Failed to import 0 rows: NoHostAvailable - ,  given up after 1 attempts
Failed to import 0 rows: NoHostAvailable - ,  given up after 1 attempts
4 child process(es) died unexpectedly, aborting
Processed: 5000 rows; Rate:     593 rows/s; Avg. rate:     489 rows/s
5000 rows imported from 0 files in 10.227 seconds (0 skipped).

我也看到了调试日志，但我没有看到任何关于这个孩子为什么死的信息。有足够的资源，我加载的文件是109mb文件。

cqlsh> COPY aarun.emp FROM '/home/etolaru/cass-data/testfile' WITH DELIMITER='|' AND HEADER = TRUE --debug;
Using 16 child processes
Starting copy of aarun.emp with columns [rownumber, cell, counternames, countervals, datetime, group]                                                                                                          .
Failed to import 0 rows: NoHostAvailable - ,  given up after 1 attempts
Failed to import 0 rows: NoHostAvailable - ,  given up after 1 attempts
4 child process(es) died unexpectedly, aborting
Processed: 5000 rows; Rate:     593 rows/s; Avg. rate:     489 rows/s
5000 rows imported from 0 files in 10.227 seconds (0 skipped).

我希望文件中的所有记录都应该加载到cassandradb中，而不会出现任何问题。请告诉我如何解决这个问题。