dbtsai commented on a change in pull request #2297:
URL: https://github.com/apache/hadoop/pull/2297#discussion_r489045005
##########
File path:
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/io/compress/snappy/TestSnappyCompressorDecompressor.java
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@@ -441,4 +442,43 @@ public void doWork() throws Exception {
ctx.waitFor(60000);
}
+
+ @Test
+ public void testSnappyCompatibility() throws Exception {
+ // HADOOP-17125. Using snappy-java in SnappyCodec. These strings are raw
data and compressed data
+ // using previous native Snappy codec. We use updated Snappy codec to
decode it and check if it
+ // matches.
+ String rawData =
"010a06030a040a0c0109020c0a010204020d02000b010701080605080b090902060a080502060a0d06070908080a0c0105030904090d05090800040c090c0d0d0804000d00040b0b0d010d060907020a030a0c0900040905080107040d0c01060a0b09070a04000b01040b09000e0e00020b06050b060e030e0a07050d06050d";
+ String compressed =
"8001f07f010a06030a040a0c0109020c0a010204020d02000b010701080605080b090902060a080502060a0d06070908080a0c0105030904090d05090800040c090c0d0d0804000d00040b0b0d010d060907020a030a0c0900040905080107040d0c01060a0b09070a04000b01040b09000e0e00020b06050b060e030e0a07050d06050d";
Review comment:
Maybe you can comment the compressed data is generated by current native
snappy codec?
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