Commit 14202d05 by Sebastien Robin

allow to define wich node starts alarms on a cluster

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@15197 20353a03-c40f-0410-a6d1-a30d3c3de9de
1 parent ba4384fc
......@@ -37,9 +37,15 @@ from Products.ERP5Type.Tool.BaseTool import BaseTool
from Products.ERP5Type import Permissions
from Products.ERP5 import _dtmldir
from DateTime import DateTime
import urllib
import socket
from zLOG import LOG, INFO
import re
# minimal IP:Port regexp
NODE_RE = re.compile('^\d+\.\d+\.\d+\.\d+:\d+$')
try:
from Products.TimerService import getTimerService
except ImportError:
......@@ -68,21 +74,15 @@ class AlarmTool(BaseTool):
security.declareProtected( Permissions.ManagePortal, 'manage_overview' )
manage_overview = DTMLFile( 'explainAlarmTool', _dtmldir )
security.declareProtected( Permissions.ManagePortal , 'manageAlarmList' )
manageAlarmList = DTMLFile( 'manageAlarmList', _dtmldir )
security.declareProtected( Permissions.ManagePortal , 'manageAlarmAdvanced' )
manageAlarmAdvanced = DTMLFile( 'manageAlarmAdvanced', _dtmldir )
security.declareProtected( Permissions.ManagePortal , 'manageAlarmNode' )
manageAlarmNode = DTMLFile( 'manageAlarmNode', _dtmldir )
manage_options = ( ( { 'label' : 'Overview'
, 'action' : 'manage_overview'
}
, { 'label' : 'All Alarms'
, 'action' : 'manageAlarmList'
}
, { 'label' : 'Advanced'
, 'action' : 'manageAlarmAdvanced'
, { 'label' : 'Alarm Node'
, 'action' : 'manageAlarmNode'
}
,
)
......@@ -91,6 +91,7 @@ class AlarmTool(BaseTool):
_properties = ( {'id': 'interval', 'type': 'int', 'mode': 'w', }, )
interval = 60 # Default interval for alarms is 60 seconds
alarmNode = ''
# API to manage alarms
# Aim of this API:
......@@ -192,12 +193,56 @@ class AlarmTool(BaseTool):
This method is called by TimerService in the interval given
in zope.conf. The Default is every 5 seconds.
"""
global last_tic
last_tic_lock.acquire(1)
try:
if tick.timeTime() - last_tic >= self.interval:
self.tic()
last_tic = tick.timeTime()
finally:
last_tic_lock.release()
# only start when we are the alarmNode or if it's empty
if (self.alarmNode == self.getCurrentNode()) \
or not self.alarmNode:
global last_tic
last_tic_lock.acquire(1)
try:
if tick.timeTime() - last_tic >= self.interval:
self.tic()
last_tic = tick.timeTime()
finally:
last_tic_lock.release()
def getCurrentNode(self):
""" Return current node in form ip:port """
port = ''
from asyncore import socket_map
for k, v in socket_map.items():
if hasattr(v, 'port'):
# see Zope/lib/python/App/ApplicationManager.py: def getServers(self)
type = str(getattr(v, '__class__', 'unknown'))
if type == 'ZServer.HTTPServer.zhttp_server':
port = v.port
break
ip = socket.gethostbyname(socket.gethostname())
currentNode = '%s:%s' %(ip, port)
return currentNode
security.declarePublic('getAlarmNode')
def getAlarmNode(self):
""" Return the alarmNode """
return self.alarmNode
def _isValidNodeName(self, node_name) :
"""Check we have been provided a good node name"""
return isinstance(node_name, str) and NODE_RE.match(node_name)
security.declarePublic('manage_setAlarmNode')
def manage_setAlarmNode(self, alarmNode, REQUEST=None):
""" set the alarm node """
if not alarmNode or self._isValidNodeName(alarmNode):
self.alarmNode = alarmNode
if REQUEST is not None:
REQUEST.RESPONSE.redirect(
REQUEST.URL1 +
'/manageAlarmNode?manage_tabs_message=' +
urllib.quote("Distributing Node successfully changed."))
else :
if REQUEST is not None:
REQUEST.RESPONSE.redirect(
REQUEST.URL1 +
'/manageAlarmNode?manage_tabs_message=' +
urllib.quote("Malformed Distributing Node."))
<dtml-comment>
Copyright (c) 2002 Nexedi SARL and Contributors. All Rights Reserved.
Sebastien Robin <seb@nexedi.com>
WARNING: This program as such is intended to be used by professional
programmers who take the whole responsability of assessing all potential
consequences resulting from its eventual inadequacies and bugs
This program as such is not intended to be used by end users. End
users who are looking for a ready-to-use solution with commercial
garantees and support are strongly adviced to contract a Free Software
Service Company
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
</dtml-comment>
<dtml-var manage_page_header>
<dtml-var manage_tabs>
<p class="form-help">
This tab defines the node wich starts Alarms.
To provide high performance, alarms should start a script wich only start
some activities. Like this, the activity tool will be in charge to distribute
the work on many nodes.
The format to adress a node in this configuration is therfore
<code>IP-Address</code>:<code>Port-Number</code>.
</p>
<p class="form-help">
The interval of distribution and activation of the activities is per default 5 seconds. This can be
changed by altering the value of <i>interval</i> in the section <i>time-server</i> in the
Zope Configuration File <i>zope.conf</i>.
</p>
<p class="form-help">
The <i>Alarm node</i> is responsible for the start of Alarms. The default value is empty
which means that every existing node will try to do launch of alarms, which is fine when there
is only one ZServer running.
To change the Alarm Node, edit the value and click &quot;Change&quot;.
</p>
<form action="&dtml-URL1;">
<table cellspacing="0" cellpadding="2" border="0" width="100%">
<tr class="list-header">
<td align="left" valign="top" colspan=2>
<div class="form-label">Alarm Node</div>
</td>
</tr>
<tr>
<td>
<div class="form-label">IP:Port</div>
</td>
<td align="left">
<div class="form-item">
<input type="text" name="alarmNode" value="&dtml-getAlarmNode;" size="19" />
</div>
</td>
</tr>
<tr>
<td>&nbsp;</td>
<td align="left">
<div class="form-element">
<input type="submit" class="form-element" name="manage_setAlarmNode:method" value=" Change ">
</div>
</td>
</tr>
<tr>
<td>&nbsp;</td>
<td>&nbsp;</td>
</tr>
<tr>
<td align="left" colspan=2>
<p class="form-help">
Subscribe/Unsubscribe from Timer Service
</p>
</td>
</tr>
<tr class="list-header">
<td align="left" valign="top" colspan=2>
<div class="form-label">
Status:
<dtml-if isSubscribed>
Subscribed
<dtml-else>
Not Subscribed
</dtml-if>
</div>
</td>
</tr>
<tr>
<td align="left">
<div class="form-element">
<dtml-if isSubscribed>
<input type="submit" class="form-element" name="unsubscribe:method" value=" Unsubscribe ">
<dtml-else>
<input type="submit" class="form-element" name="subscribe:method" value=" Subscribe ">
</dtml-if>
</div>
</td>
</tr>
</table>
</form>
<dtml-var manage_page_footer>
Styling with Markdown is supported
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!