Reminder: Using Phoenix internals forces you to understand exactly how
the version of Phoenix that you're using serializes data. Is there a
reason you're not using SQL to interact with Phoenix?
Sounds to me that Phoenix is expecting more data at the head of your
rowkey. Maybe a salt bucket that you've defined on the table but not
created?
On 9/12/18 4:32 PM, Saif Addin wrote:
Hi all,
We're trying to write tables with all string columns from spark.
We are not using the Spark Connector, instead we are directly writing
byte arrays from RDDs.
The process works fine, and Hbase receives the data correctly, and
content is consistent.
However reading the table from Phoenix, we notice the first character of
strings are missing. This sounds like it's a byte encoding issue, but
we're at loss. We're using PVarchar to generate bytes.
Here's the snippet of code creating the RDD:
val tdd = pdd.flatMap(x => {
val rowKey = PVarchar.INSTANCE.toBytes(x._1)
for(i <- 0 until cols.length) yield {
other stuff for other columns ...
...
(rowKey, (column1, column2, column3))
}
})
...
We then create the following output to be written down in Hbase
val output = tdd.map(x => {
val rowKeyByte: Array[Byte] = x._1
val immutableRowKey = new ImmutableBytesWritable(rowKeyByte)
val kv = new KeyValue(rowKeyByte,
PVarchar.INSTANCE.toBytes(column1),
PVarchar.INSTANCE.toBytes(column2),
PVarchar.INSTANCE.toBytes(column3)
)
(immutableRowKey, kv)
})
By the way, we are using *KryoSerializer* in order to be able to
serialize all classes necessary for Hbase (KeyValue, BytesWritable, etc).
The key of this table is the one missing data when queried from Phoenix.
So we guess something is wrong with the byte ser.
Any ideas? Appreciated!
Saif
