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In computing, Veritas NetBackup called Symantec NetBackup prior to Symantecs divestiture of Veritas is an enterpriselevel heterogeneous backup and recovery suite. Configuring individual componentsAfter defining the flow, you need to set properties of each source, sink and. This is done in the same hierarchical namespace fashion where you set. Agent. sources. lt Source. Property lt some. Value properties for channelslt Agent. Channel. lt some. Property lt some. Value properties for sinkslt Agent. Sink. lt some. Property lt some. Value The property type needs to be set for each component for Flume to understand. Each source, sink and channel type has its. All those need. to be set as needed. In the previous example, we have a flow from. App. Srv source to hdfs Cluster. Heres an example that shows configuration of each of those. App. Srv sourceagentfoo. Cluster. 1 sinkagentfoo. App. Srv sourceagentfoo. App. Srv source. App. Srv source. App. Srv source. Capacity1. 00 properties of hdfs Cluster. Cluster. 1 sink. Cluster. Adding multiple flows in an agentA single Flume agent can contain several independent flows. You can list. multiple sources, sinks and channels in a config. These components can be. Agent. sourceslt Source. Source. 2 lt Agent. Sink. 1 lt Sink. Agent. Channel. Channel. Then you can link the sources and sinks to their corresponding channels for. For example, if. you need to setup two flows in an agent, one going from an external avro client. HDFS and another from output of a tail to avro sink, then heres a. App. Srv source. Cluster. App. Srv source. Cluster. Configuring a multi agent flowTo setup a multi tier flow, you need to have an avrothrift sink of first hop. This will result in the first. Flume agent forwarding events to the next Flume agent. For example, if you are. Flume agent, then this local agent can forward it to another agent that has the. Weblog agent config list sources, sinks and channels in the agentagentfoo. App. Srv sourceagentfoo. App. Srv source. HDFS agent config list sources, sinks and channels in the agentagentfoo. Here we link the avro forward sink from the weblog agent to the. This will result in the events coming. HDFS. Fan out flowAs discussed in previous section, Flume supports fanning out the flow from one. There are two modes of fan out, replicating and. In the replicating flow, the event is sent to all the configured. In case of multiplexing, the event is sent to only a subset of. To fan out the flow, one needs to specify a list of. This is done by. adding a channel selector that can be replicating or multiplexing. Then. further specify the selection rules if its a multiplexer. If you dont specify. List the sources, sinks and channels for the agentlt Agent. Source. 1 lt Agent. Sink. 1 lt Sink. Agent. Channel. Channel. Agent. Source. 1. Channel. Channel. Agent. Sink. 1. channellt Channel. Agent. sinks. lt Sink. Channel. 2 lt Agent. Source. 1. selector. The multiplexing select has a further set of properties to bifurcate the flow. This requires specifying a mapping of an event attribute to a set for channel. The selector checks for each configured attribute in the event header. If it. matches the specified value, then that event is sent to all the channels mapped. If theres no match, then the event is sent to set of channels. Mapping for multiplexing selectorlt Agent. Source. 1. selector. Agent. sources. lt Source. Header lt Agent. Source. Value. 1 lt Channel. Agent. sources. lt Source. Value. 2 lt Channel. Channel. 2 lt Agent. Source. 1. selector. Value. 3 lt Channel. Agent. sources. lt Source. Channel. 2 The mapping allows overlapping the channels for each value. The following example has a single flow that multiplexed to two paths. The. agent named agentfoo has a single avro source and two channels linked to two sinks list the sources, sinks and channels in the agentagentfoo. App. Srv source. Cluster. App. Srv source. Cluster. App. Srv source. App. Srv source. Stateagentfoo. App. Srv source. CAmem channel 1agentfoo. App. Srv source. AZfile channel 2agentfoo. App. Srv source. NYmem channel 1 file channel 2agentfoo. App. Srv source. The selector checks for a header called State. If the value is CA then its. AZ then it goes to file channel 2 or if its. NY then both. If the State header is not set or doesnt match any of the. The selector also supports optional channels. To specify optional channels for. App. Srv source. App. Srv source. Stateagentfoo. App. Srv source. CAmem channel 1agentfoo. App. Srv source. AZfile channel 2agentfoo. App. Srv source. NYmem channel 1 file channel 2agentfoo. App. Srv source. CAmem channel 1 file channel 2agentfoo. App. Srv source. AZfile channel 2agentfoo. App. Srv source. The selector will attempt to write to the required channels first and will fail. The. transaction is reattempted on all of the channels. Once all required. A failure by any of the optional channels to consume the. If there is an overlap between the optional channels and required channels for a. For. instance, in the above example, for the header CA mem channel 1 is considered. How To Install Adobe Without Admin Privileges Php here. Note that if a header does not have any required channels, then the event will. Specifying optional channels will still cause. If no channels are designated as default and there are no required. Any. failures are simply ignored in that case. Flume SourcesAvro SourceListens on Avro port and receives events from external Avro client streams. When paired with the built in Avro Sink on another previous hop Flume agent. Required properties are in bold. Property Name. Default. Descriptionchannels typeThe component type name, needs to be avrobindhostname or IP address to listen onportPort to bind tothreadsMaximum number of worker threads to spawnselector. Space separated list of interceptorsinterceptors. This can be none or deflate. The compression type must match the compression type of matching Avro. Sourcesslfalse. Set this to true to enable SSL encryption. You must also specify a keystore and a keystore password. This is the path to a Java keystore file. Required for SSL. The password for the Java keystore. Required for SSL. JKSThe type of the Java keystore. This can be JKS or PKCS1. SSLv. 3Space separated list of SSLTLS protocols to exclude.