by haimc
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Following my successful lecture I’d like to share the slides with you. If you already familiar with Spark API, it's time to take your code to a higher level and gain performance. In this session we go over best practices of handling data, improved code and Spark cluster configuration. Hope...

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Following our successful Fullstack event with over 350 RSVP members, we are happy to share the slides with you. Machine Learning is more available today then ever due to API's in the cloud as services. They are mostly used for Neural Networks but also other API's. But Machine Learning also...

by yanai
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Introduction I would like to post a short description about a simple design change, I just did for one of Tikal’s customer, which greatly improved the throughput for their processing on their BigData lake with Spark. Background In the last few months I had to build a BigData infrastructure for...

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Salesforce Data Extractor Conundrum There are many companies that are using Salesforce as their CRM. Though, what is very lacking in the CRM systems is analytics. So many companies need to export their data from Salesforce to another systems like BigQuery. If you need to do this and do not...

by haimc
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What Is Safe Mode in HDFS? HDFS is a distributed file system. This means that blocks of the file are replicated between the datanodes of the HDFS, depending on the file's replication factor. The default replication factor in HDFS is 3 (configurable via hdfs-site.xml), so every block is written to...

by rans
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Agile is not as "Hot" as used to be - true or false? Recently, I get a lot of negative attitude toward Agile Development. In many organizations where I was consulting, people use Scrum), but complain about it. Some of the complaints I hear are: There are too many meetings...

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Cassandra Scheme Update In the world of RDBMS when we have a database with a scheme we have the issue of how to manage changes in the scheme. When updating our product, we also need the option to update our database scheme. For this we have tools like liquibase and...

by orenk
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I was recently consulting a client. Long garbage collections cycles triggered the client failover to switch server, since the server was idle for too long. My task was to improve the garbage collection. The tuning task took several iterations, in each step there was something new to learn. There are...

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In every programmer’s life comes a time where they need to know if words from a defined set of words appear in input texts. Today, we’ll see how to do it using a naïve solution, and efficiently using Aho-Corasick algorithm. Real world usage I recently used Aho-Corasick algorithm myself. I...

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Batch with Salesforce The task I was given a task that seemed to be very simple. We had some logic that would collect accounts from the CRM so that we could then send Emails and SMS to contacts on the account. Since all the work seemed to be CRM only...