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#! /usr/bin/env python
# -*- mode: c; c-basic-offset: 2; indent-tabs-mode: nil; -*-
# vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
#
# Copyright (C) 2010 Patrick Crews
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
""" drizzled.py: code to allow a serverManager
to provision and start up a drizzled server object
for test execution
"""
# imports
import os
class drizzleServer():
""" represents a drizzle server, its possessions
(datadir, ports, etc), and methods for controlling
and querying it
TODO: create a base server class that contains
standard methods from which we can inherit
Currently there are definitely methods / attr
which are general
"""
def __init__(self, name, server_manager, server_options
, requester, workdir_root):
self.skip_keys = [ 'server_manager'
, 'system_manager'
, 'dirset'
, 'preferred_base_port'
, 'no_secure_file_priv'
, 'secure_file_string'
, 'port_block'
]
self.debug = server_manager.debug
self.verbose = server_manager.verbose
self.initial_run = 1
self.owner = requester
self.server_options = server_options
self.server_manager = server_manager
# We register with server_manager asap
self.server_manager.log_server(self, requester)
self.system_manager = self.server_manager.system_manager
self.valgrind = self.system_manager.valgrind
self.gdb = self.system_manager.gdb
if self.valgrind:
self.valgrind_time_buffer = 10
else:
self.valgrind_time_buffer = 1
self.cmd_prefix = self.system_manager.cmd_prefix
self.logging = self.system_manager.logging
self.no_secure_file_priv = self.server_manager.no_secure_file_priv
self.code_tree = self.system_manager.code_tree
self.preferred_base_port = 9306
self.name = name
self.status = 0 # stopped, 1 = running
self.tried_start = 0
self.failed_test = 0 # was the last test a failure? our state is suspect
self.server_start_timeout = 60 * self.valgrind_time_buffer
# Get our ports
self.port_block = self.system_manager.port_manager.get_port_block( self.name
, self.preferred_base_port
, 5 )
self.master_port = self.port_block[0]
self.drizzle_tcp_port = self.port_block[1]
self.mc_port = self.port_block[2]
self.pbms_port = self.port_block[3]
self.rabbitmq_node_port = self.port_block[4]
# Generate our working directories
self.dirset = { self.name : { 'var': {'std_data_ln':( os.path.join(self.code_tree.testdir,'std_data'))
,'log':None
,'run':None
,'tmp':None
,'master-data': {'local': { 'test':None
, 'mysql':None
}
}
}
}
}
self.workdir = self.system_manager.create_dirset( workdir_root
, self.dirset)
self.vardir = os.path.join(self.workdir,'var')
self.tmpdir = os.path.join(self.vardir,'tmp')
self.rundir = os.path.join(self.vardir,'run')
self.logdir = os.path.join(self.vardir,'log')
self.datadir = os.path.join(self.vardir,'master-data')
self.error_log = os.path.join(self.logdir,('%s.err' %(self.name)))
self.pid_file = os.path.join(self.rundir,('%s.pid' %(self.name)))
self.socket_file = os.path.join(self.vardir, ('%s.sock' %(self.name)))
self.timer_file = os.path.join(self.logdir,('timer'))
self.snapshot_path = os.path.join(self.tmpdir,('snapshot_%s' %(self.master_port)))
# We want to use --secure-file-priv = $vardir by default
# but there are times / tools when we need to shut this off
if self.no_secure_file_priv:
self.secure_file_string = ''
else:
self.secure_file_string = "--secure-file-priv='%s'" %(self.vardir)
self.user_string = '--user=root'
# client files
self.drizzledump = self.code_tree.drizzledump
self.drizzle_client = self.code_tree.drizzle_client
self.drizzleimport = self.code_tree.drizzleimport
self.drizzleadmin = self.code_tree.drizzleadmin
self.drizzleslap = self.code_tree.drizzleslap
self.server_path = self.code_tree.drizzle_server
self.drizzle_client_path = self.code_tree.drizzle_client
self.schemawriter = self.code_tree.schemawriter
self.initialize_databases()
self.take_db_snapshot()
if self.debug:
self.logging.debug_class(self)
def report(self):
""" We print out some general useful info """
report_values = [ 'name'
, 'master_port'
, 'drizzle_tcp_port'
, 'mc_port'
, 'pbms_port'
, 'rabbitmq_node_port'
, 'vardir'
, 'status'
]
self.logging.info("%s master server:" %(self.owner))
for key in report_values:
value = vars(self)[key]
self.logging.info("%s: %s" %(key.upper(), value))
def get_start_cmd(self):
""" Return the command string that will start up the server
as desired / intended
"""
server_args = [ self.process_server_options()
, "--mysql-protocol.port=%d" %(self.master_port)
, "--mysql-protocol.connect-timeout=60"
, "--innodb.data-file-path=ibdata1:20M:autoextend"
, "--sort-buffer-size=256K"
, "--max-heap-table-size=1M"
, "--mysql-unix-socket-protocol.path=%s" %(self.socket_file)
, "--pid-file=%s" %(self.pid_file)
, "--drizzle-protocol.port=%d" %(self.drizzle_tcp_port)
, "--datadir=%s" %(self.datadir)
, "--tmpdir=%s" %(self.tmpdir)
, self.secure_file_string
, self.user_string
]
if self.gdb:
server_args.append('--gdb')
return self.system_manager.handle_gdb_reqs(self, server_args)
else:
return "%s %s %s & " % ( self.cmd_prefix
, self.server_path
, " ".join(server_args)
)
def get_stop_cmd(self):
""" Return the command that will shut us down """
return "%s --user=root --port=%d --shutdown " %(self.drizzle_client_path, self.master_port)
def get_ping_cmd(self):
"""Return the command string that will
ping / check if the server is alive
"""
return "%s --ping --port=%d --user=root" % (self.drizzle_client_path, self.master_port)
def process_server_options(self):
"""Consume the list of options we have been passed.
Return a string with them joined
"""
return " ".join(self.server_options)
def initialize_databases(self):
""" Call schemawriter to make db.opt files """
databases = [ 'test'
, 'mysql'
]
for database in databases:
db_path = os.path.join(self.datadir,'local',database,'db.opt')
cmd = "%s %s %s" %(self.schemawriter, database, db_path)
self.system_manager.execute_cmd(cmd)
def take_db_snapshot(self):
""" Take a snapshot of our vardir for quick restores """
self.logging.info("Taking clean db snapshot...")
if os.path.exists(self.snapshot_path):
# We need to remove an existing path as python shutil
# doesn't want an existing target
self.system_manager.remove_dir(self.snapshot_path)
self.system_manager.copy_dir(self.datadir, self.snapshot_path)
def restore_snapshot(self):
""" Restore from a stored snapshot """
if self.verbose:
self.logging.verbose("Restoring from db snapshot")
if not os.path.exists(self.snapshot_path):
self.logging.error("Could not find snapshot: %s" %(self.snapshot_path))
self.system_manager.remove_dir(self.datadir)
self.system_manager.copy_dir(self.snapshot_path, self.datadir)
def cleanup(self):
""" Cleanup - just free ports for now..."""
self.system_manager.port_manager.free_ports(self.port_block)
def set_server_options(self, server_options):
""" We update our server_options to the new set """
self.server_options = server_options
def reset(self):
""" Voodoo to reset ourselves """
self.failed_test = 0
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