Env Debian 9 # 使用通用二进制方式安装 # mongod --version db version v3.4.21-2.19 git version: 2e0631f5e0d868dd51b71e1e55eb8a57300d00df OpenSSL version: OpenSSL 1.0.2q 20 Nov 2018 allocator: tcmalloc modules: none build environment: distarch: x86_64 target_arch:…

问题: 发现mongodb无法连接,查看mongodb日志,出现大量的如下报错: [initandlisten] connection refused because too many open connections: mongodb的连接数到达819后,就无法增加,所以无法连接上去. 分析解决: 1.maxConns 限制 默认情况下,在Linux系统中,mongodb的最大连接数为819. 可以修改mongodb的最大连接数,修改其配置文件mongod.conf: maxConns= #官…

1:Mongod日志有很多这样的报错: [initandlisten] connection refused because too many open connections: 2:查看系统的限制 core file size (blocks, -c) 0 data seg size (kbytes, -d) unlimited scheduling priority (-e) 0 file size (blocks, -f) unlimited pending signals (-i) 25…

由于项目需要,在一台虚拟机上安装了MongoDB,但是在启动的时候,出现如下错误: [root@localhost bin]# ./mongo MongoDB shell version v3.4.0 connecting to: mongodb://127.0.0.1:27017 2018-09-27T21:11:14.779+0800 W NETWORK [main] Failed to connect to 127.0.0.1:27017, reason: Connection refus…

啦啦啦 这种情况 root@localhost:/# mongo MongoDB shell version: connecting to: test --31T07:: W NETWORK [thread1] Failed to connect to , Connection refused --31T07:: E QUERY [thread1] Error: couldn't connect to server 127.0.0.1:27017, connection attempt fail…

部署好mongodb服务器后,在客户端安装好php的mongodb扩展,用程序连接mongodb服务器出错:no route to host.搜索了差不多一天的时候都没有相关的解决方法.最后在mongodb服务器上停掉防火墙,再访问一切正常了!如果不想停止防火墙,只需在防火墙添加一条规则即可.添加规则的方法如下:先停止防火墙 service iptables stop 然后修改 /etc/sysconfig/iptables添加 -A INPUT -m state --state NEW -m…

com.mongodb.MongoSocketOpenException: Exception opening socket at com.mongodb.connection.SocketStream.open(SocketStream.java:63) ~[mongodb-driver-core-3.4.3.jar:na]at com.mongodb.connection.InternalStreamConnection.open(InternalStreamConnection.java:…

问题: I am trying to connect to a postgres database installed in a remote server using the following command: psql -h host_ip -U db_username -d db_name This the error that occurs: psql: could not connect to server: Connection refused Is the server runn…

问题分析 vmware配置的fedora虚拟机, 主机能ping通虚拟机, 虚拟机也能ping通主机.但是用PUTTY连接虚拟机的时候出现 Network error: Connection refused. 排查方法 1.查看SSH服务有没有安装 #rpm -qa | grep ssh [root@localhost ~]# rpm -qa|grep ssh openssh-clients-6.1p1-4.fc18.i686 openssh-6.1p1-4.fc18.i686 libssh2-…

Oracle Linux 6.8 PostgreSQL Server IP: 192.168.10.220 Windows 7 x64 pgAdmin Custom Port IP: 192.168.10.2 Unable to connect to server: could not connect to server: Connection refused (0x0000274D/10061) Is the server running on host "192.168.10.220&quo…