Manticore Search 2.8.2 GA release

We are pleased to announce the release of Manticore Search 2.8.2 GA.

Prebuilt packages available for Debian,Ubuntu, Red Hat/CentOS, Windows and OSX can be downloaded from here.

Major feature

Multi-master synchronous replication for percolate indexes based on Galera library (Percona fork).

Replication requires to set a new searchd directive – data_dir –  used for the internal files of replication and a dedicated listen interface for communication.

Clusters can be created and managed using SphinxQL statements. For more information, please consult the Replication section.

The replication feature should be considered in beta stage, but it does not affect in any way functionality or stability of existing setups. Feedback is welcomed and possible changes should be expected. In future support for RealTime indexes will be added.

Other improvements

OPTION clause of SELECT statement receive new option ‘morphology’. Currently only value ‘none’ can be used  to prevent morphology  on query terms  if index_exact_words is enabled.

SphinxQL is now compatible with latest Connector/J.  For more information about how to setup the connection string, please check MySQL Connectors section.

Fixes

  • 36df1a40 fixed #177 large packet via SphinxQL interface
  • 6a217f6e fixed #172 phrase_boundary settings at RT index
  • 57932aec fixed #170 crash of daemon on RT optimize with MVA updated
  • 3562f652 fixed #168 deadlock at ATTACH index to itself

For a full report please consult the Release note.

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Free config review

There are often optimizations that can be made to a Sphinx / Manticore setup by changing some simple directives in the configuration or making quick changes to an index definition.

Some common mistakes and issues can include:

  • doing main+delta without kill-lists, even if the delta does include updated records found in the main
  • using wildcarding with very short prefix/infix which can hammer performance in some cases
  • disabled (unintentional) seamless rotates and getting stalls on index rotations
  • adding texts as string attributes even if they are not using for any kind of operation (filtering, grouping, sorting) or mandatory to be present in results
  • using deprecated settings 

Having a quick look on the configuration can show issues or potential issues, this is why we want to offer a gift to our growing community!

When uploading your configuration file, we recommend to remove any database credentials first.

We suggest also you give as many possible details about your setup: how big is the data you have, how typical queries look and what issues you experience.

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