added elasticsearch top script

Author: ckorobov

PYTHON/Elasticsearch-Top.py

@@ -0,0 +1,63 @@
+#!/usr/bin/python
+# Calculating differences between indices size of ELasticsearch every few seconds
+
+import requests
+import time
+import sys
+
+try:
+    r = requests.get('http://localhost:9200/_cat/indices?v')
+except :
+    print ("Error conecting to elasticsearch. Exiting...")
+    sys.exit(1)
+
+data = r.text.split('\n')
+
+#remove header
+data.pop(0)
+
+stored_values = []
+for i in range(0,len(data)-1):
+    index_name = data[i].split()[2]
+    docs_number = data[i].split()[5]
+    size = data[i].split()[7]
+    delta = 0
+    last_number = data[i].split()[5]
+
+    values = {'index':index_name,'docs':docs_number,'size':size,'delta':delta,'last':last_number}
+
+    stored_values.append(values)
+
+try:
+    while True:
+	    try:
+		r = requests.get('http://localhost:9200/_cat/indices?v')
+	    except :
+		print ("Error conecting to elasticsearch. Exiting...")
+		sys.exit(1)
+	
+	    data = r.text.split('\n')
+	    data.pop(0)
+	
+	    #clean the screen
+	    print(chr(27) + "[2J")
+	    print '{0:40} {1:6} {2:11} {3:10}'.format('Index name', 'Delta', 'Docs number', 'Size')
+	    for i in range(0,len(data)-1):
+		index_name = data[i].split()[2]
+		docs_number = int(float(data[i].split()[5]))
+	
+		size = data[i].split()[7]
+		for item in stored_values:
+		    if item["index"] == index_name:
+			delta = docs_number - int(float(item["last"]))
+			item["delta"] = delta
+			item["last"] = docs_number
+			if delta != 0:
+			    print '{0:40} {1:6} {2:11} {3:10}'.format(index_name, delta, docs_number, size)
+			break
+	    time.sleep(2)
+
+except KeyboardInterrupt:
+    print "Bye-bye"
+
+# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4