EngineConnPlugin installation

    After Linkis 1.0, the engine is managed by EngineConnManager, and the EngineConnPlugin (ECP) supports real-time effectiveness. In order to facilitate the EngineConnManager to be loaded into the corresponding EngineConnPlugin by labels, it needs to be packaged according to the following directory structure (take hive as an example):

    If you are adding a new engine, you can refer to hive’s assembly configuration method, source code directory: linkis-engineconn-plugins/engineconn-plugins/hive/src/main/assembly/distribution.xml

    2. Engine Installation

    1.First, confirm the dist directory of the engine: wds.linkis.engineconn.home (get the value of this parameter from ${LINKIS_HOME}/conf/linkis.properties), this parameter is used by EngineConnPluginServer to read the configuration file that the engine depends on And third-party Jar packages. If the parameter (wds.linkis.engineconn.dist.load.enable=true) is set, the engine in this directory will be automatically read and loaded into the Linkis BML (material library).

    It is highly recommended specifying wds.linkis.engineconn.home and wds.linkis.engineconn.plugin.loader.store.path as the same directory, so that you can directly unzip the engine ZIP package exported by maven into this directory, such as: Place it in the ${LINKIS_HOME}/lib/linkis-engineconn-plugins directory.

    If the two parameters do not point to the same directory, you need to place the dist and plugin directories separately, as shown in the following example:

    The configuration of the Linkis1.0 management console is managed according to the engine label. If the new engine has configuration parameters, you need to insert the corresponding configuration parameters in the Configuration, and you need to insert the parameters in three tables:

    1. Restart refresh: the engine catalog can be forced to refresh by restarting

    3.Check whether the engine refresh is successful: If you encounter problems during the refresh process and need to confirm whether the refresh is successful, you can check whether the last_update_time of the linkis_engine_conn_plugin_bml_resources table in the database is the time when the refresh is triggered.