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The following commit(s) were added to refs/heads/master by this push:
     new b99610e  [SPARK-26592][SS][DOC] Add Kafka proxy user caveat to 
documentation
b99610e is described below

commit b99610e9ed94420291c27f3a174a107ba6f4db90
Author: Gabor Somogyi <gabor.g.somo...@gmail.com>
AuthorDate: Tue Mar 5 09:58:51 2019 -0800

    [SPARK-26592][SS][DOC] Add Kafka proxy user caveat to documentation
    
    ## What changes were proposed in this pull request?
    
    Since this caveat added to the DStreams documentation it would be good to 
add to Structured Streaming as well.
    
    ## How was this patch tested?
    
    cd docs/
    SKIP_API=1 jekyll build
    Manual webpage check.
    
    Closes #23974 from gaborgsomogyi/SPARK-26592_.
    
    Authored-by: Gabor Somogyi <gabor.g.somo...@gmail.com>
    Signed-off-by: Marcelo Vanzin <van...@cloudera.com>
---
 docs/structured-streaming-kafka-integration.md | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/docs/structured-streaming-kafka-integration.md 
b/docs/structured-streaming-kafka-integration.md
index 425110a..7c043ac 100644
--- a/docs/structured-streaming-kafka-integration.md
+++ b/docs/structured-streaming-kafka-integration.md
@@ -693,6 +693,10 @@ must match with Kafka broker configuration.
 
 When delegation token is available on an executor it can be overridden with 
JAAS login configuration.
 
+#### Caveats
+
+- Obtaining delegation token for proxy user is not yet supported 
([KAFKA-6945](https://issues.apache.org/jira/browse/KAFKA-6945)).
+
 ### JAAS login configuration
 
 JAAS login configuration must placed on all nodes where Spark tries to access 
Kafka cluster.


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