anishshri-db commented on code in PR #40981:
URL: https://github.com/apache/spark/pull/40981#discussion_r1180871653


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sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/state/RocksDB.scala:
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@@ -61,17 +60,27 @@ class RocksDB(
 
   // Java wrapper objects linking to native RocksDB objects
   private val readOptions = new ReadOptions()  // used for gets
-  private val writeOptions = new WriteOptions().setSync(true)  // wait for 
batched write to complete

Review Comment:
   Yea I don't think it was actually required even in the existing model. But 
with the new model, RocksDB library prevents using this option at all and 
throws this exception
   
   ```
   [info]   org.rocksdb.RocksDBException: Sync writes has to enable WAL.
   [info]   at org.rocksdb.RocksDB.put(Native Method)
   [info]   at org.rocksdb.RocksDB.put(RocksDB.java:904)
   ```



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