一文钱难倒英雄汉之【eos节点报错】

在工作中我们经常会碰到一些小问题，这些小问题在解决后来看都很简单容易，但是如果不知道解决方案可能得花费一天甚至几天的时间，解决过程经常让人抓狂，试图借“一文钱难倒英雄汉”这个标题来记录下这些问题和解决方案。

文章尽量短小精悍，不求甚解，看了能解决就好。

EOS节点同步数据报错

mac下多次同步数据报错，如下：

2410236ms thread-0   producer_plugin.cpp:290       on_incoming_block    ] Received block 9dfc5ac53a9e3ea1... #4422000 @ 2018-07-06T06:39:38.000 signed by eosnewyorkio [trxs: 17, lib: 4421671, conf: 0, latency: 507632236 ms]
2415526ms thread-0   net_plugin.cpp:1970           connect              ] host: 54.38.250.15 port: 19878 
2415526ms thread-0   net_plugin.cpp:1970           connect              ] host: mainnet.eospay.host port: 19876 
2415526ms thread-0   net_plugin.cpp:1970           connect              ] host: node.eosflare.io port: 1883 
2415526ms thread-0   net_plugin.cpp:1970           connect              ] host: eos.staked.us port: 9870 
2416526ms thread-0   net_plugin.cpp:2190           operator()           ] Peer mainnet.eospay.host:19876 closed connection
2416526ms thread-0   net_plugin.cpp:2190           operator()           ] Peer node.eosflare.io:1883 closed connection
2416771ms thread-0   net_plugin.cpp:2190           operator()           ] Peer 54.38.250.15:19878 closed connection
2440839ms thread-0   net_plugin.cpp:2190           operator()           ] Peer eos.staked.us:9870 closed connection
2445725ms thread-0   net_plugin.cpp:1970           connect              ] host: 54.38.250.15 port: 19878 
2445725ms thread-0   net_plugin.cpp:1970           connect              ] host: mainnet.eospay.host port: 19876 
2445725ms thread-0   net_plugin.cpp:1970           connect              ] host: node.eosflare.io port: 1883 
2445725ms thread-0   net_plugin.cpp:1970           connect              ] host: eos.staked.us port: 9870 
2446514ms thread-0   net_plugin.cpp:2190           operator()           ] Peer mainnet.eospay.host:19876 closed connection
2446774ms thread-0   net_plugin.cpp:2190           operator()           ] Peer node.eosflare.io:1883 closed connection
2447030ms thread-0   net_plugin.cpp:2190           operator()           ] Peer 54.38.250.15:19878 closed connection
libc++abi.dylib: terminating with uncaught exception of type boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<std::logic_error> >: Could not restore object, most likely a uniqueness constraint was violated
Abort trap: 6