Question

我正在尝试运行Cassandra附带的stress.py压力测试。当我尝试运行./stress.py时，我得到以下输出：

Traceback (most recent call last):
  File "/usr/lib/python2.6/multiprocessing/process.py", line 232, in _bootstrap
    self.run()
  File "./stress.py", line 238, in run
    self.cclient.batch_mutate(cfmap, consistency)
  File "/opt/cassandra/apache-cassandra-0.7.6-2-src/contrib/py_stress/cassandra/Cassandra.py", line 784, in batch_mutate
    self.recv_batch_mutate()
  File "/opt/cassandra/apache-cassandra-0.7.6-2-src/contrib/py_stress/cassandra/Cassandra.py", line 808, in recv_batch_mutate
    raise result.ue
UnavailableException: UnavailableException()
Process Inserter-49:

有什么想法？感谢

Answer 1

UnavailableException意味着有太多节点关闭。使用“nodetool ring”找出哪个。

另外：除非你自定义stress.py，否则java压力工具要快得多。（使用python，你需要大约1：1的客户端机器才能使cassandra机器完全饱和;使用java时，它更像是1：5。）

让stress.py与Cassandra合作的问题

1 个答案: