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Avro 1.9+ supports ZSTD compression codec. I tried to use org.apache.avro.file.CodecFactory.zstandardCodec(3) in my Beam GenericRecord write, but ran into the following exception from SerializableAvroCodecFactory:

Exception in thread "main" java.lang.IllegalStateException: zstandard[3] is not supported
	at org.apache.beam.vendor.guava.v32_1_2_jre.com.google.common.base.Preconditions.checkState(Preconditions.java:601)
	at org.apache.beam.sdk.extensions.avro.io.SerializableAvroCodecFactory.<init>(SerializableAvroCodecFactory.java:60)
	at org.apache.beam.sdk.extensions.avro.io.AvroIO$TypedWrite.withCodec(AvroIO.java:1695)
	at org.apache.beam.sdk.extensions.avro.io.AvroIO$Write.withCodec(AvroIO.java:1923)

Is there any reason that zstd isn't supported? If not, I can add it to the list of allowed formats in SerializableAvroCodecFactory.

My guess is that's due to cross-avro-version compatibility, since DataFileConstants.ZSTANDARD_CODEC doesn't exist in Avro 1.8, but we can just hardcode that as a String rather than importing the Avro library variable to preserve compatibility with Avro 1.8.

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Priority: 2 (default / most feature requests should be filed as P2)

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