Groonga 7.0.1 has been released

Groonga 7.0.1 has been released!

How to install: Install


Here are important changes in this release:

  • Dropped CentOS 5 support
  • Fixed a problem about dynamically updated index size
  • [experimental] Supported GRN_ORDER_BY_ESTIMATED_SIZE_ENABLE

Dropped CentOS 5 support

CentOS 5 will reach EOL at March 31, 2017. So, Groonga packages on CentOS 5 won't be shipped anymore.

We recommends to migrate CentOS 5 environment to CentOS 6 or later.

Fixed a problem about dynamically updated index size

Since Groonga 6.1.4 release, there is a problem about dynamically updated index size was increased.

Here is the example how Groonga database size is increased:

Database size comparison between dynamically updated index and statically updated index

This problem was fixed in this release!


In this release, GRN_ORDER_BY_ESTIMATED_SIZE_ENABLE environment variable was supported.

This variable controls whether query optimization which is based on estimated size is applied or not. This feature is disabled by default.

Set GRN_ORDER_BY_ESTIMATED_SIZE_ENABLE=yes if you want to try it.


See Release 7.0.1 2017-03-29 about detailed changes since 7.0.0.

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