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CORDA-2756 - Node configuration doc change (#5550)

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* Added note to the node configuration docs regarding duplicate keys.

* Added explanation about override priority.

* Grammar change according to PR review.
This commit is contained in:
Stefan Iliev 2019-10-08 12:57:51 +01:00 committed by Anthony Keenan
parent efa01410ec
commit ca0c7e02ae
1 changed files with 8 additions and 0 deletions
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docs/source/corda-configuration-file.rst
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@ -28,6 +28,11 @@ This prevents configuration errors when mixing keys containing ``.`` wrapped wit
``"dataSourceProperties.dataSourceClassName" = "val"`` in `Reference.conf`_ would be not overwritten by the property
``dataSourceProperties.dataSourceClassName = "val2"`` in *node.conf*.
.. warning:: If a property is defined twice the last one will take precedence. The library currently used for parsing HOCON
currently does not provide a way to catch duplicates when parsing files and will silently override values for the same key.
For example having ``key=initialValue`` defined first in node.conf and later on down the
lines ``key=overridingValue`` will result into the value being ``overridingValue``.
By default the node will fail to start in presence of unknown property keys.
To alter this behaviour, the ``on-unknown-config-keys`` command-line argument can be set to ``IGNORE`` (default is ``FAIL``).
@ -46,6 +51,9 @@ JVM options
java -Dcorda.rpcSettings.ssl.keyStorePassword=mypassword -jar node.jar
.. note:: If the same field is overriden by both an environment variable and system property, the system property
takes precedence.
Configuration file fields
-------------------------