google-cloud-bigtable

问题 I'm trying to test the Spark-HBase connector in the GCP context and tried to follow [1], which asks to locally package the connector [2] using Maven (I tried Maven 3.6.3) for Spark 2.4, and leads to following issue. Error "branch-2.4": [ERROR] Failed to execute goal net.alchim31.maven:scala-maven-plugin:3.2.2:compile (scala-compile-first) on project shc-core: Execution scala-compile-first of goal net.alchim31.maven:scala-maven-plugin:3.2.2:compile failed.: NullPointerException -> [Help 1]

问题 I want to connect to Google Cloud Bigtable which running on Docker: docker run --rm -it -p 8086:8086 -v ~/.config/:/root/.config \ bigtruedata/gcloud-bigtable-emulator It starts without any problems: [bigtable] Cloud Bigtable emulator running on 127.0.0.1:8086 ~/.config it is my default credentials that I configured in this way: gcloud auth application-default login I used Java-code from official sample HelloWorld. Also, I changed connection configuration like this: Configuration conf =

问题 I want to connect to Google Cloud Bigtable which running on Docker: docker run --rm -it -p 8086:8086 -v ~/.config/:/root/.config \ bigtruedata/gcloud-bigtable-emulator It starts without any problems: [bigtable] Cloud Bigtable emulator running on 127.0.0.1:8086 ~/.config it is my default credentials that I configured in this way: gcloud auth application-default login I used Java-code from official sample HelloWorld. Also, I changed connection configuration like this: Configuration conf =

问题 I want to connect to Google Cloud Bigtable which running on Docker: docker run --rm -it -p 8086:8086 -v ~/.config/:/root/.config \ bigtruedata/gcloud-bigtable-emulator It starts without any problems: [bigtable] Cloud Bigtable emulator running on 127.0.0.1:8086 ~/.config it is my default credentials that I configured in this way: gcloud auth application-default login I used Java-code from official sample HelloWorld. Also, I changed connection configuration like this: Configuration conf =

问题 I am working on a project wherein I have to store events related to user activity per user on a daily basis for later analysis. I will be getting stream of timestamped events and later on will run dataflow jobs on this data for analytics to get stats per user. I am exploring big table to store this data, wherein timestamp will act as a key for each row, later I will run a range query to get single day data and process it. But after going through couple of resources figured that with

问题 I am exporting a table in Cloud Bigtable to Cloud Storage by following this link https://cloud.google.com/bigtable/docs/exporting-sequence-files#exporting_sequence_files_2 The bigtable table size is ~300GB and the dataflow pipeline results in this error An OutOfMemoryException occurred. Consider specifying higher memory instances in PipelineOptions. java.lang.OutOfMemoryError: Java heap space at java.util.Arrays.copyOf(Arrays.java:3236) at java.io.ByteArrayOutputStream.grow

问题 I want to persist to BigTable a very wide Spark Dataframe (>100'000 columns) that is sparsely populated (>99% of values are null) while keeping only non-null values (to avoid storage cost). Is there a way to specify in Spark to ignore nulls when writing? Thanks ! 来源： https://stackoverflow.com/questions/65647574/spark-hbase-bigtable-wide-sparse-dataframe-persistence

问题 I'm trying to test the Spark-HBase connector in the GCP context and tried to follow 1, which asks to locally package the connector [2] using Maven (I tried Maven 3.6.3) for Spark 2.4, and get following error when submitting the job on Dataproc (after having completed [3]). Any idea ? Thanks for your support References 1 https://github.com/GoogleCloudPlatform/cloud-bigtable-examples/tree/master/scala/bigtable-shc [2] https://github.com/hortonworks-spark/shc/tree/branch-2.4 [3] Spark-HBase -

问题 I'm trying to test the Spark-HBase connector in the GCP context and tried to follow the instructions, which asks to locally package the connector, and I get the following error when submitting the job on Dataproc (after having completed these steps). Command (base) gcloud dataproc jobs submit spark --cluster $SPARK_CLUSTER --class com.example.bigtable.spark.shc.BigtableSource --jars target/scala-2.11/cloud-bigtable-dataproc-spark-shc-assembly-0.1.jar --region us-east1 -- $BIGTABLE_TABLE Error

问题 I'm trying to test the Spark-HBase connector in the GCP context and tried to follow the instructions, which asks to locally package the connector, and I get the following error when submitting the job on Dataproc (after having completed these steps). Command (base) gcloud dataproc jobs submit spark --cluster $SPARK_CLUSTER --class com.example.bigtable.spark.shc.BigtableSource --jars target/scala-2.11/cloud-bigtable-dataproc-spark-shc-assembly-0.1.jar --region us-east1 -- $BIGTABLE_TABLE Error