Yes, exactly.
On Mon, 16 Jan 2017 at 8:44 AM, Neeraj Vaidya <[email protected]> wrote: > Thanks. That answers my questions. > > So, it is the operator name, as specified in the addOperator, which needs > to be referenced in the XML file. > > > > Regards, > > Neeraj > > > > -------------------------------------------- > > On Mon, 16/1/17, AJAY GUPTA <[email protected]> wrote: > > > > Subject: Re: Apache Apex Configuration Packages > > To: [email protected], "Neeraj Vaidya" <[email protected]> > > Date: Monday, 16 January, 2017, 1:50 PM > > > > 1) Yes, > > the parameters need to be specified in properties.xml > > file.2 & 3) You can use and specify different > > properties for multiple instances of same operator in your > > logical DAG. Only the operator names should be > > different. > > For eg. > > Assume you declare 2 instances of HdfsInputOperator in > > prepareDag() as follows > > HdfsnputOperator o1 = > > dag.addOperator("hdfsInputOperator1", > > HdfsInputOperator.class);HdfsnputOperator o2 > > = dag.addOperator("hdfsInputOperator2", > > HdfsInputOperator.class); > > > > To > > specify which directory/file each operator should read, you > > can set their respective property as follows > > <property> > > <name>dt.operator.hdfsInputOperator1.prop.fileName</name> > > <value>data1</value></property><property> > > <name>dt.operator.hdfsInputOperator2.prop.fileName</name> > > <value>data2</value></property> > > > > > > > > > > On Mon, Jan 16, 2017 at > > 5:13 AM, Neeraj Vaidya <[email protected]> > > wrote: > > Hi, > > > > With reference to application configuration packages, can > > the following be clarified : > > > > 1) Where do parameters related application specific business > > logic need to be placed ? In the properties.xml or a > > separate appname.properties file in the classpath folder of > > the config package ? I am guessing it is the properties > > file, but correct me if I am wrong. > > > > 2) If I were to use 2 instances of the same operator (e.g. : > > 2 Socket operators listening for messages on different > > ports), is it possible to specify the port number for each > > in the properties.xml file ? Again, my guess is no, because > > the <name> tag cannot differentiate between multiple > > instances of the same operator. > > > > 2.1) As an aside, is it ok to have multiple instances of any > > type of operator in each application or rather create a > > separate application altogether with a different config > > package ? the complexity in creating more than one > > application is sharing in-memory application data among each > > other. > > > > > > > > Regards, > > > > Neeraj > > > > > > > >
