Hi Sunitha, here is some documentation about how to use the Hbase sink with Flink [1, 2].
[1] https://ci.apache.org/projects/flink/flink-docs-stable/dev/table/connectors/hbase.html [2] https://docs.cloudera.com/csa/1.2.0/datastream-connectors/topics/csa-hbase-connector.html Cheers, Till On Tue, Sep 29, 2020 at 9:16 AM s_penakalap...@yahoo.com < s_penakalap...@yahoo.com> wrote: > Hi Piotrek, > > Thank you for the reply. > > Flink changes are good, However Flink is changing so much that we are > unable to get any good implementation examples either on Flink documents or > any other website. > > Using HBaseInputFormat I was able to read the data as a DataSet<>, now I > see that DataSet would be deprecated. > > In recent release Flink 1.11.1 I see Blink planner, but I was not able to > get one example on how to connect to HBase and read data. Is there any link > I can refer to see some implementation of reading from HBase as bounded > data using Blink Planner/DataStream API. > > Regards, > Sunitha. > > > > On Monday, September 28, 2020, 07:12:19 PM GMT+5:30, Piotr Nowojski < > pnowoj...@apache.org> wrote: > > > Hi Sunitha, > > First and foremost, the DataSet API will be deprecated soon [1] so I would > suggest trying to migrate to the DataStream API. When using the DataStream > API it doesn't mean that you can not work with bounded inputs - you can. > Flink SQL (Blink planner) is in fact using DataStream API to execute both > streaming and batch queries. Maybe this path would be easier? > > And about answering your question using the DataSet API - sorry, I don't > know it :( I will try to ping someone who could help here. > > Piotrek > > [1] > https://cwiki.apache.org/confluence/pages/viewpage.action?pageId=158866741 > > pon., 28 wrz 2020 o 15:14 s_penakalap...@yahoo.com < > s_penakalap...@yahoo.com> napisał(a): > > Hi All, > > Need your help in Flink Batch processing: scenario described below: > > we have multiple vehicles, we get data from each vehicle at a very high > speed, 1 record per minute. > thresholds can be set by the owner for each vehicle. > > Say: we have 3 vehicles, threshold is set for 2 vehicles. > Vehicle 1, threshold 20 hours, allowedPetrolConsumption=15 > vehicle 2, threshold 35 hours, allowedPetrolConsumption=28 > vehicle 3 no threshold set by owner. > > All the vehicle data is stored in HBase tables. We have a scheduled Batch > Job every day at 12 pm to check the status of vehicle movement and Petrol > consumption against threshold and raise an alert (vehicle1 did not move for > past 20 hours, vehicle 2 consumed more petrol. ) > > Since it is a Batch Job, I loaded all threshold data in one DataSet and > HBase Data in another Dataset using HbaseInputFormat. > > What I am failing to figure out is: > 1> vehicle 1 is having threshold of 20 hours where as vehicle 2 has > threshold of 35 hours, I need to fetch data from Hbase for different > scenario. Is there any better approach to get all data using one Hbase > connection. > 2> how to apply alert on Dataset. CEP pattern/ Match_recognize is allowed > only on DataStream. Please help me with a simple example. (alert can be > raised if count is zero or like petrol consumption is too high) > > > I could not get any example for Dataset on google where an alert is > raised. Kindly guide me if there is any better approach > > Regards, > Sunitha. > >
