我将我的redis快照(dump.rdb文件)转移scp到远程服务器.我需要在这个遥控器上运行一个redis服务器并从dump.rdb文件中恢复数据.我怎样才能做到这一点？
Redis用于保存数据,但它占用大量内存,内存使用率高达52.5%.我在redis中删除了一半的密钥,删除操作的返回代码没问题,但其内存使用率没有降低.
什么原因？提前致谢.
我的操作代码如下:
// save data
m_pReply = (redisReply *)redisCommand(m_pCntxt, "set %b %b", mykey.data(), mykey.size(), &myval, sizeof(myval));
// del data
m_pReply = (redisReply *)redisCommand(m_pCntxt, "del %b", mykey.data(), mykey.size());
redis信息:
redis 127.0.0.1:6979> info redis_version:2.4.8 redis_git_sha1:00000000 redis_git_dirty:0 arch_bits:64 multiplexing_api:epoll gcc_version:4.4.6 process_id:28799 uptime_in_seconds:1289592 uptime_in_days:14 lru_clock:127925 used_cpu_sys:148455.30 used_cpu_user:38023.92 used_cpu_sys_children:23187.60 used_cpu_user_children:123989.72 connected_clients:22 connected_slaves:0 client_longest_output_list:0 client_biggest_input_buf:0 blocked_clients:0 used_memory:31903334872 used_memory_human:29.71G used_memory_rss:34414981120 used_memory_peak:34015653264 used_memory_peak_human:31.68G mem_fragmentation_ratio:1.08 mem_allocator:jemalloc-2.2.5 loading:0 aof_enabled:0 changes_since_last_save:177467 bgsave_in_progress:0 last_save_time:1343456339 bgrewriteaof_in_progress:0 total_connections_received:820 total_commands_processed:2412759064 expired_keys:0 evicted_keys:0 keyspace_hits:994257907 keyspace_misses:32760132 pubsub_channels:0 pubsub_patterns:0 latest_fork_usec:11672476 vm_enabled:0 role:slave master_host:192.168.252.103 master_port:6479 master_link_status:up master_last_io_seconds_ago:0 master_sync_in_progress:0 …
我按照指南如何向PyPI提交包以提交一个包.它抛出了以下错误:
Traceback (most recent call last):
File "setup.py", line 27, in
'Programming Language :: Python',
File "/usr/lib64/python2.6/distutils/core.py", line 152, in setup
dist.run_commands()
File "/usr/lib64/python2.6/distutils/dist.py", line 975, in run_commands
self.run_command(cmd)
File "/usr/lib64/python2.6/distutils/dist.py", line 995, in run_command
cmd_obj.run()
File "/usr/lib/python2.6/site-packages/setuptools/command/register.py", line 9, in run
_register.run(self)
File "/usr/lib64/python2.6/distutils/command/register.py", line 33, in run
self._set_config()
File "/usr/lib64/python2.6/distutils/command/register.py", line 84, in _set_config
raise ValueError('%s not found in .pypirc' % self.repository)
ValueError: PyPI-test not found in .pypirc
我的.pypirc文件上下文是:
[distutils] # this tells distutils what package … 在下面的代码中,管道超时是2秒？
client = redis.StrictRedis(host=host, port=port, db=0, socket_timeout=2)
pipe = client.pipeline(transaction=False)
for name in namelist:
key = "%s-%s-%s-%s" % (key_sub1, key_sub2, name, key_sub3)
pipe.smembers(key)
pipe.execute()
在redis中,set"key"中有很多成员.它始终返回错误,如下所示:
error Error while reading from socket: ('timed out',)
如果我将socket_timeout值修改为10,则返回ok.
参数"socket_timeout"不是指连接超时吗？但它看起来像响应超时.
redis-py版本是2.6.7.
有一个nginx服务器监听8080端口,telnet使用localhost和127.0.0.1.一个连接,一个连接失败否则.
[test@localhost sbin]$ telnet localhost 8080
Trying ::1...
telnet: connect to address ::1: Connection refused
[test@localhost sbin]$ telnet 127.0.0.1 8080
Trying 127.0.0.1...
Connected to 127.0.0.1.
Escape character is '^]'.
'localhost'和'127.0.0.1'之间有什么区别？为什么localhost连接失败？谢谢!