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Strategy name | Description |
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localsink | Logical sink operators are staying local (on the distributing node) overriding allocation. Useful if the user wants to have the last operator to check the data stream results. |
localsource | Logical source operators are staying local (on the distribution node) overriding allocation. Useful if the user do not want to share its source operators to other nodes. |
merge | Two adjacent query parts which are assigned to the same node are merged to omit unneeded network-transmission operators. |
discardedreplicates | Post processor to insert a sender for each {@link ReplicationMergeAO}. The sender will be inserted for the output port 1 that is not used normally. All discarded replicates are sent to port 1. The sender writes the data in a CSV file (one file per merger). The only argument for this post processor is the path to the CSV files. The names of the files are determined by the {@link ReplicationMergeAO} (name and hashCode). Used sender settings: |
CalcLatency | Inserts a CalcLatencyAO before every real sink. Note that the sources must provide the meta attribute Latency. |