mridulm commented on code in PR #37853:
URL: https://github.com/apache/spark/pull/37853#discussion_r968077550
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docs/running-on-yarn.md:
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@@ -852,8 +852,8 @@ The following extra configuration options are available
when the shuffle service
<td><code>spark.shuffle.service.db.backend</code></td>
<td>LEVELDB</td>
<td>
- To specify the kind of disk-base store used in shuffle service state
store, supports `LEVELDB` and `ROCKSDB` now
- and `LEVELDB` as default value.
+ When Yarn NodeManager recovery is enabled, this use to specify the kind of
disk-base store used in shuffle
+ service state store, supports `LEVELDB` and `ROCKSDB` now and `LEVELDB` as
default value.
Review Comment:
```suggestion
When work-preserving restart is enabled in YARN, this is used to specify
the disk-base store used in shuffle
service state store, supports `LEVELDB` and `ROCKSDB` with `LEVELDB` as
default value.
```
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