pyspark read data from hbase - apache-spark

Question

hadoop: 3.2.1
hbase: 2.3.4
spark: 2.4.7
python: 3.7.6
Hbase table: "tmp"
hbase(main):001:0> scan "tmp"
ROW COLUMN+CELL
1 column=cols:age, timestamp=2021-06-22T14:17:31.735, value=10
1 column=cols:name, timestamp=2021-06-22T14:17:23.037, value=tom
2 column=cols:age, timestamp=2021-06-22T14:17:40.157, value=11
2 column=cols:name, timestamp=2021-06-22T14:17:48.516, value=dim
spark shell:
pyspark \
--master yarn \
--deploy-mode client \
--num-executors 5 \
--executor-cores 1 \
--driver-memory 6g \
--executor-memory 1g \
--packages org.apache.hbase.connectors.spark:hbase-spark:1.0.0
spark code:
from pyspark.sql import SparkSession
spark = SparkSession.builder.getOrCreate()
df = (spark.read.format("org.apache.hadoop.hbase.spark")
.option("hbase.table", "tmp")
.option("hbase.columns.mapping", "col1 STRING :key, col2 STRING cols:name, col3 STRING cols:age")
.load())
df.show()
I run pyspark code in pyspark shell.
but I get an error.
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/spark-current/python/pyspark/sql/readwriter.py", line 172, in load
return self._df(self._jreader.load())
File "/usr/lib/spark-current/python/lib/py4j-0.10.7-src.zip/py4j/java_gateway.py", line 1257, in __call__
File "/usr/lib/spark-current/python/pyspark/sql/utils.py", line 67, in deco
return f(*a, **kw)
File "/usr/lib/spark-current/python/lib/py4j-0.10.7-src.zip/py4j/protocol.py", line 328, in get_return_value
py4j.protocol.Py4JJavaError: An error occurred while calling o169.load.
: java.lang.NullPointerException
at org.apache.hadoop.hbase.spark.HBaseRelation.<init>(DefaultSource.scala:138)
at org.apache.hadoop.hbase.spark.DefaultSource.createRelation(DefaultSource.scala:69)
at org.apache.spark.sql.execution.datasources.DataSource.resolveRelation(DataSource.scala:365)
at org.apache.spark.sql.DataFrameReader.loadV1Source(DataFrameReader.scala:242)
at org.apache.spark.sql.DataFrameReader.load(DataFrameReader.scala:230)
at org.apache.spark.sql.DataFrameReader.load(DataFrameReader.scala:186)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at py4j.reflection.MethodInvoker.invoke(MethodInvoker.java:244)
at py4j.reflection.ReflectionEngine.invoke(ReflectionEngine.java:357)
at py4j.Gateway.invoke(Gateway.java:282)
at py4j.commands.AbstractCommand.invokeMethod(AbstractCommand.java:132)
at py4j.commands.CallCommand.execute(CallCommand.java:79)
at py4j.GatewayConnection.run(GatewayConnection.java:238)
at java.lang.Thread.run(Thread.java:748)