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https://www.tsingfun.com/it/tech/1047.html 

一次「Too many open files」故障 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...最大文件数到底是多少呢?可以通过 proc 确认: shell> cat /proc/<PID>/limits 结果是「4096」,我们还可以进一步看看 ElasticSearch 打开的都是什么东西: shell> ls /proc/<PID>/fd 问题看上去非常简单,只要加大相应的配置项应该就可以...
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[解决]CTRL: PTY read or GRE write failed - 更多技术 - 清泛网 - 专注C/C++及内核技术

...ptp vpn服务器连接失败出现以下日志内容:(查看系统日志[cat var log messages |grep pptpd]后发现)GRE: read(fd=6,buffer=80504c0...pptp vpn服务器连接失败出现以下日志内容: (查看系统日志[ cat /var/log/messages |grep pptpd ]后发现) GRE: read(fd=6,...
https://www.tsingfun.com/it/os_kernel/2002.html 

Linux iptables防火墙开放mysql、apache的端口 - 操作系统(内核) - 清泛网 ...

...改配置,添加两条tcp端口允许的记录:[root@iZ23rlmiwviZ ~] cat etc sysconfig iptables sample configuration for iptables service vi /etc/sysconfig/iptables 修改配置,添加两条tcp端口允许的记录: [root@iZ23rlmiwviZ ~]# cat /etc/sysconfig/iptables # sample configu...
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OpenSuSE 安装bpftrace - 操作系统(内核) - 清泛网 - 专注IT技能提升

...PFTRACE_MAP_KEYS_MAX [default: 4096] max keys in a map BPFTRACE_CAT_BYTES_MAX [default: 10k] maximum bytes read by cat builtin BPFTRACE_MAX_PROBES [default: 512] max number of probes BPFTRACE_LOG_SIZE [default: 409600] log size in bytes BPFTRACE_NO_US...
https://www.tsingfun.com/it/os... 

OpenSuSE 安装bpftrace - 操作系统(内核) - 清泛网 - 专注IT技能提升

...PFTRACE_MAP_KEYS_MAX [default: 4096] max keys in a map BPFTRACE_CAT_BYTES_MAX [default: 10k] maximum bytes read by cat builtin BPFTRACE_MAX_PROBES [default: 512] max number of probes BPFTRACE_LOG_SIZE [default: 409600] log size in bytes BPFTRACE_NO_US...
https://www.tsingfun.com/it/os... 

OpenSuSE 安装bpftrace - 操作系统(内核) - 清泛网移动版 - 专注IT技能提升

...PFTRACE_MAP_KEYS_MAX [default: 4096] max keys in a map BPFTRACE_CAT_BYTES_MAX [default: 10k] maximum bytes read by cat builtin BPFTRACE_MAX_PROBES [default: 512] max number of probes BPFTRACE_LOG_SIZE [default: 409600] log size in bytes BPFTRACE_NO_US...
https://www.tsingfun.com/it/os... 

OpenSuSE 安装bpftrace - 操作系统(内核) - 清泛网 - 专注IT技能提升

...PFTRACE_MAP_KEYS_MAX [default: 4096] max keys in a map BPFTRACE_CAT_BYTES_MAX [default: 10k] maximum bytes read by cat builtin BPFTRACE_MAX_PROBES [default: 512] max number of probes BPFTRACE_LOG_SIZE [default: 409600] log size in bytes BPFTRACE_NO_US...
https://www.tsingfun.com/it/os... 

OpenSuSE 安装bpftrace - 操作系统(内核) - 清泛网 - 专注IT技能提升

...PFTRACE_MAP_KEYS_MAX [default: 4096] max keys in a map BPFTRACE_CAT_BYTES_MAX [default: 10k] maximum bytes read by cat builtin BPFTRACE_MAX_PROBES [default: 512] max number of probes BPFTRACE_LOG_SIZE [default: 409600] log size in bytes BPFTRACE_NO_US...
https://www.tsingfun.com/it/os... 

OpenSuSE 安装bpftrace - 操作系统(内核) - 清泛网移动版 - 专注IT技能提升

...PFTRACE_MAP_KEYS_MAX [default: 4096] max keys in a map BPFTRACE_CAT_BYTES_MAX [default: 10k] maximum bytes read by cat builtin BPFTRACE_MAX_PROBES [default: 512] max number of probes BPFTRACE_LOG_SIZE [default: 409600] log size in bytes BPFTRACE_NO_US...
https://www.tsingfun.com/it/os... 

OpenSuSE 安装bpftrace - 操作系统(内核) - 清泛网 - 专注IT技能提升

...PFTRACE_MAP_KEYS_MAX [default: 4096] max keys in a map BPFTRACE_CAT_BYTES_MAX [default: 10k] maximum bytes read by cat builtin BPFTRACE_MAX_PROBES [default: 512] max number of probes BPFTRACE_LOG_SIZE [default: 409600] log size in bytes BPFTRACE_NO_US...