• How to install docker in Amazon Linux

    The usage of Docker is growing more and more. Our daily development tends to depend on the container platform highly. But I found AWS Linux I recently launched does not have Docker engine as default. It is a frustrating situation even I just want to use Docker in AWS environment.... [Read More]
  • How to reindex Elasticsearch

    Due to the nature of the database system, the schema definition should be evolved as time goes by. We may need to add the type information for new columns, change the name of the same attribute. Otherwise, the database would not be able to deliver the value expected by users.... [Read More]
  • YouTube to Learn Science

    Recently, I found that YouTube was an excellent resource to learn new things. As MOOCs emerged as a platform for education, YouTube is also gaining popularity as a place to learn many things which are traditionally taught in the school. A well-designed movie gives us a chance to understand the... [Read More]
  • First Ever Presto Conference in Tokyo

    In the last month, we have held a Presto conference in Tokyo at our office. That is the first-ever Presto conference gathering Presto developers in the Japanese community. While I’ve written a report in the official blog of prestosql.io, I neglected to write down my thought on this blog. [Read More]
  • Inspect Presto connection with Charles

    Seeing the unseen is the fundamental principle in debugging for software. The exchange of data between processes through the network is not visible literally. We often encountered the case when we need to inspect the data transmitted between multiple processes for debugging. [Read More]