mydreambei-ai

from sqlalchemy import create_engine
from sqlalchemy import MetaData, Table, Column, Integer, String


engine = create_engine('sqlite:///:memory:', echo=True)
metadata = MetaData()

user = Table('user', metadata,
    Column('user_id', Integer, primary_key=True),
    Column('user_name', String(16), nullable=False))

mydreambei-ai

cc -fpic -c func.c -I`pg_config --includedir-server`
cc -shared -o func.so func.o
#mv func.so server dynamic lib directory
mv func.so `pg_config --pkglibdir`
cd `pg_config --pkglibdir`
chown root:root func.so

mydreambei-ai

cc -fpic -c func.c -I`pg_config --includedir-server`
cc -shared -o func.so func.o
#mv func.so server dynamic lib directory
mv func.so `pg_config --pkglibdir`
cd `pg_config --pkglibdir`
chown root:root func.so

mydreambei-ai

import time
import threading
import pickle
import queue

class Worker(threading.Thread):
    def __init__(self):
        threading.Thread.__init__(self)
        self._start = threading.Event()
        self._lock = threading.Lock()

mydreambei-ai

#http://unix.stackexchange.com/questions/314329/mailx-not-sending-email-when-run-as-a-systemd-service
systemd send mail is odd, using mail must set flag -vv
# shadowsocks.service
[Unit]
Description=The Postgresql Server Restful API
OnFailure=failure-email@%n.service

[Service]
Type=simple
ExecStart=/usr/bin/sslocal -c /etc/shadowsocks.json

mydreambei-ai

#!/bin/bash
# ./csv2json.sh -s ":" -f /etc/passwd -F 1,7 -N user,shell|json_pp

usage() { echo "Usage: $0 [-s <field seprator>] [-f <file>] [-F <fields>] [-N <names>]" 1>&2; exit 1;}


while getopts ":s:f:F:N:" o;do
    case "${o}" in
        s)
            SEP=${OPTARG}

mydreambei-ai

from sqlalchemy import Column, String, ForeignKey
from sqlalchemy.orm import relationship

from sqlalchemy.ext.declarative import declarative_base

Base = declarative_base()


class City(Base):
    __tablename__ = "citys"

mydreambei-ai

class Lmy(object):
    def sum(self, a, b, c=None):
        if c is None:
            return a + b
        else:
            return a + b + c

    def do_data(self, data):
        a, b = data
        return self.sum(a, b)

mydreambei-ai

[root@ip-11-0-0-239 centos]# firewall-cmd --zone=trusted --add-source=94.204.104.194/32
success
[root@ip-11-0-0-239 centos]# firewall-cmd --zone=trusted --add-source=94.206.104.194/32
success
[root@ip-11-0-0-239 centos]# firewall-cmd --zone=trusted
success
[root@ip-11-0-0-239 centos]# firewall-cmd --list-sources
You're performing an operation over default zone ('public'),
but your connections/interfaces are in zone 'trusted' (see --get-active-zones)
You most likely need to use --zone=trusted option.

mydreambei-ai

NFS server setup

Install And Start Server

1. yum -y install rpcbind zfs
2. service rpcbind start
3. service zfs start

Setup

1. mkdir /home/nfs