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@@ -27,10 +27,16 @@ e.g.
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* Hue must be behing a load balancer proxying static files. In Cloudera Manager Hue ships with HTTPD.
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* Hue must be behing a load balancer proxying static files. In Cloudera Manager Hue ships with HTTPD.
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* Adding more Hue instances behind the load balancer will increase performances by 50 concurrent users.
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* Adding more Hue instances behind the load balancer will increase performances by 50 concurrent users.
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* Database backend should be such as MySql/Postgres/Oracle. Hue does not work on SQLite as it makes concurrent calls to the database.
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* Database backend should be such as MySql/Postgres/Oracle. Hue does not work on SQLite as it makes concurrent calls to the database.
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-* Check the number of documents in the Hue database
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+* Check the number of documents in the Hue database. If they are too many (more than 100 000), delete the old records:
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+ Stop the Hue service. Log on to the host of your Hue server. Go to Hue directory and run following clean up [command]({{% param baseURL %}}administrator/administration/operations/#commands):
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+<pre>
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+ cd /opt/cloudera/parcels/CDH/lib/hue # Hue home directory
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+ ./build/env/bin/hue desktop_document_cleanup
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+</pre>
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+
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* There are some memory fragmentation issues in Python that manifest in Hue. Check the memory usage of Hue periodically. Browsing HDFS dir with many files, downloading a query result, copying a HDFS files are costly operations memory wise.
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* There are some memory fragmentation issues in Python that manifest in Hue. Check the memory usage of Hue periodically. Browsing HDFS dir with many files, downloading a query result, copying a HDFS files are costly operations memory wise.
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-The `Config Check` page of Hue (/hue/about/) in the administrator section will warn about detected risks. Make sure it is at zero.
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+The [Config Check]({{% param baseURL %}}administrator/administration/reference/) page of Hue (`/hue/about/`) in the administrator section will warn about detected risks. Make sure it is at zero.
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## Query Editor Performance
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## Query Editor Performance
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