The below script is used to delete the same memcache key or multiple memcache keys across multiple memcache hosts.<\/p>\n
Assumption:<\/strong><\/p>\n If below mentioned condition doesn’t satisfied then the script may fail or may not work. All you have to do is modify\/tweak the script as per your requirement<\/p>\n #!\/usr\/bin\/python #Version:1.0 #Mention your Cluster hosts and unique name def delete_memcache(delete_key=’none’,hosts_group=’none’,delete_multiple_keys=’none’):\n
\n########Script to Delete Memcache Key########
\n#Author:Dhanasekaran N
\n#Email:support@pheonixsolutions.com<\/p>\n
\n#############################################
\nimport memcache
\nfrom fabric import *
\nfrom fabric.api import *<\/p>\n
\n_MEMCACHE_CLUSTER_ = {
\n“Cluster1” :[‘IPAddress1:<port>’,’IPaddress2:<port>’],
\n“Cluster2” :[‘IPaddress3:<port>’,’IPaddress:<port>’],
\n}
\ndef _run_command(host_name,verify_key):
\nmc = memcache.Client([host_name], debug=0)
\n#run(‘pwd’);
\nprint “key name:” + verify_key;
\nchecked_key=mc.get(verify_key);
\nprint\u00a0 checked_key;
\nif(checked_key is None):
\nprint “The key %s doesn’t exist ”\u00a0 %(verify_key)
\nelse:
\nprint “Deleting %s from %s” %(verify_key,host_name)
\nmc.delete(verify_key)<\/p>\n
\nall_groups=_MEMCACHE_CLUSTER_.keys();
\n#print delete_multiple_keys;
\nif (delete_key==’none’ and\u00a0 delete_multiple_keys==’none’):
\nprint “No delete Key or delete_multiple_key Mentioned”;
\nprint “Eg:fab\u00a0 delete_memcache:delete_key=’some_key1′,hosts_group=’java_api'”
\nelif(hosts_group ==’none’):
\nprint “Mention the host Group while running fab”
\nprint _MEMCACHE_CLUSTER_.keys();
\nelse:
\nif(delete_multiple_keys!=’none’):
\nif(delete_multiple_keys):
\ndelete_multiple_keys = delete_multiple_keys.split(“;”)
\nfor cache_cluster in all_groups:
\nif(cache_cluster == hosts_group):
\n#print _MEMCACHE_CLUSTER_[cache_cluster];
\nfor cache_cluster_hosts in _MEMCACHE_CLUSTER_[cache_cluster]:
\nprint cache_cluster_hosts;
\nfor delete_key in delete_multiple_keys:
\nexecute(_run_command,hosts=cache_cluster_hosts,host_name=cache_cluster_hosts,verify_key=delete_key);
\nelse:
\nfor cache_cluster in all_groups:
\nif(cache_cluster == hosts_group):
\nfor cache_cluster_hosts in _MEMCACHE_CLUSTER_[cache_cluster]:
\nprint cache_cluster_hosts;
\nexecute(_run_command,hosts=cache_cluster_hosts,host_name=cache_cluster_hosts,verify_key=delete_key);<\/p><\/blockquote>\n