PHOENIX-5284: Add documentation for PHOENIX-5197
diff --git a/phoenix-spark/README.md b/phoenix-spark/README.md
index 4764dc3..f906317 100644
--- a/phoenix-spark/README.md
+++ b/phoenix-spark/README.md
@@ -153,6 +153,19 @@
as well as an optional `zkUrl` parameter for the Phoenix connection URL.
- If `zkUrl` isn't specified, it's assumed that the "hbase.zookeeper.quorum" property has been set
in the `conf` parameter. Similarly, if no configuration is passed in, `zkUrl` must be specified.
+- As of [PHOENIX-5197](https://issues.apache.org/jira/browse/PHOENIX-5197), you can pass configurations from the driver
+to executors as a comma-separated list against the key `phoenixConfigs` i.e (PhoenixDataSource.PHOENIX_CONFIGS), for ex:
+ ```scala
+ df = spark
+ .sqlContext
+ .read
+ .format("phoenix")
+ .options(Map("table" -> "Table1", "zkUrl" -> "hosta,hostb,hostc", "phoenixConfigs" -> "hbase.client.retries.number=10,hbase.client.pause=10000"))
+ .load;
+ ```
+ This list of properties is parsed and populated into a properties map which is passed to `DriverManager.getConnection(connString, propsMap)`.
+ Note that the same property values will be used for both the driver and all executors and
+ these configurations are used each time a connection is made (both on the driver and executors).
## Limitations
