Elastic server taking more than required time to update the count of a tag

Am reading data from mysql table and and updating the count of respective record to elastic server but it is taking 6 hours some times more than that. Please any one have any solution or what is the reason to take this much time to update the count on elastic server. Please help me in this

Error in Writing tags to elastic. Error : An error occurred while calling o1225.save.

memberDF = self.processing(spark,finalDF,TagName,Start,End,Start1,End1,Type,y,memberDF,mysqldetails)

ELASTIC_FLAG = 0
            try:
                logger_1.info("Writing tags to elastic for Id's "+str(idlist))
                ELASTIC_FLAG = mysqlconnectorobj.elastic_write(DF, elastic, indexTypeName)
            except Exception as e:
                logger_1.error("Error in Writing tags to elastic. Error : "+str(e))

            logger_1.info("Preparing comma separated id of tags which ran successfully")