Mercurial > hg > orthanc-book
diff Sphinx/source/faq/scalability.rst @ 441:c2ae93c562d2
Orthanc 1.7.1
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Wed, 27 May 2020 13:26:03 +0200 |
parents | 86bf70a1f570 |
children | 987fbbc2b59e |
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--- a/Sphinx/source/faq/scalability.rst Wed May 27 12:24:44 2020 +0200 +++ b/Sphinx/source/faq/scalability.rst Wed May 27 13:26:03 2020 +0200 @@ -54,7 +54,7 @@ Here is a generic setup that should provide best performance in the presence of large databases: -* Make sure to use the latest release of Orthanc (1.7.0 at the time of +* Make sure to use the latest release of Orthanc (1.7.1 at the time of writing). * We suggest to use the latest release of the :ref:`PostgreSQL plugin @@ -172,7 +172,7 @@ Exclusive access to the DB ^^^^^^^^^^^^^^^^^^^^^^^^^^ -As of Orthanc 1.7.0, the internal code accessing the DB is still affected +As of Orthanc 1.7.1, the internal code accessing the DB is still affected by limitations induced by the SQLite engine that was the only one originally available at the beginning of the project: inside a single Orthanc process, there is no concurrent access to the DB. @@ -184,7 +184,7 @@ Also note that the core of Orthanc does not currently support the replay of database transactions, which is necessary to deal with conflicts between several instances of Orthanc that would simultaneously write -to the database. As a consequence, as of Orthanc 1.7.0, when connecting multiple +to the database. As a consequence, as of Orthanc 1.7.1, when connecting multiple Orthanc to a single database by setting ``Lock`` to ``false``, there should only be one instance of Orthanc acting as a writer and all the other instances of Orthanc acting as readers only. Be careful to set @@ -203,7 +203,7 @@ Latency ^^^^^^^ -As of Orthanc 1.7.0, Orthanc still performs quite a large number of small +As of Orthanc 1.7.1, Orthanc still performs quite a large number of small SQL requests. A simple request to a route like ``/studies/{id}`` can trigger 6 SQL queries.