Welcome to my Hashnode blog where i post some of my finding in tech world, mostly interested by topics related to data analytics, observability and cyber security. I like share my experience on ELK
Let's suppose you have a large timeseries index that holds multiple days, months or years of data and you want to split it into daily, weekly or monthly timeseries index. Let's talk the following example of timeseries metrics ingested into the same i...
In this short post i will not dive into considerations on why i use daily indices instead of using a global ILM policy that will rollover and organize the data ..., in my daily basis dealing with duplicates is a must and this is not supported by roll...
By mistake i added some documents to my elasticsearch index without providing an explicit mapping, elasticsearch did the job and add a default mapping like this : { "account_id": { "type": "text", "fields": { "keyword": { "typ...
I have an index that holds some inventory data from network devices, and tried to update these documents using logstash with other attributes from differents systems like billing. Surprise! after 2 hours of batch running with logstash, i discovered t...
If you want to load the following data into elasticsearch, you will need to make some changes so you can create interesting tranforms and visualizations in kibana The better would be to ingest data into elasticsearch with the following denormalized ...
Vega declarative grammar is a powerful way to visualize your data. Since Kibana 6.2, you can build rich Vega and Vega-Lite visualizations with your Elasticsearch data. A radar chart is a graphical method of displaying multivariate data in the form of...
Logstash does not prvide any native input plugin to connect MongoDB, but it provide a JDBC input plugin, so to sync MongoDB into Elasticsearch all we need is to find the suitable JBBC driver. The one will be showcased in this blog post is developped ...
This article was inspired from Cisco Blog How we calculate the bandwidth use depends on how data is presented for what we want to measure. Interface use is the primary measure used for network use. Use this formulas, based on whether the connection y...
What is SNMP ? (This part has been inspired from ManageEngine web site. Simple Network Management Protocol (SNMP) is an application–layer protocol defined by the Internet Architecture Board (IAB) in RFC1157 for exchanging management information betwe...
