Add retry_policy session property docs

docs/.vale/config/vocabularies/Base/accept.txt

@@ -15,8 +15,10 @@ CPU
 Datafaker
 DNS
 ETL
+GCS
 Guice
 gzip
+hdfs
 HDFS
 ipsum
 JDBC
@@ -38,5 +40,6 @@ rowId
 SPI
 subnet
 TLS
+trino
 Trino
 truststore

docs/src/main/sphinx/admin/fault-tolerant-execution.md

@@ -23,7 +23,7 @@ fault-tolerant execution to improve query processing resilience, read
 
 ## Configuration
 
-Fault-tolerant execution is disabled by default. To enable the feature, set the
+Fault-tolerant execution is turned off by default. To enable the feature, set the
 `retry-policy` configuration property to either `QUERY` or `TASK`
 depending on the desired {ref}`retry policy <fte-retry-policy>`.
 
@@ -66,7 +66,10 @@ execution on a Trino cluster:
 * - `retry-policy`
   - Configures what is retried in the event of failure, either `QUERY` to retry
     the whole query, or `TASK` to retry tasks individually if they fail. See
-    [retry policy](fte-retry-policy) for more information.
+    [retry policy](fte-retry-policy) for more information. Use the equivalent
+    session property `retry_policy` only on clusters configured for
+    fault-tolerant execution and typically only to deactivate with `NONE`, since
+    switching between modes on a cluster is not tested.
   - `NONE`
 * - `exchange.deduplication-buffer-size`
   - [Data size](prop-type-data-size) of the coordinator's in-memory buffer used
@@ -76,8 +79,8 @@ execution on a Trino cluster:
     the failure recovery capabilities to be fully functional" error message unless an 
     [exchange manager](fte-exchange-manager) is configured.
   - `32MB`
-* - `fault-tolerant-execution-exchange-encryption-enabled`
-  - Enable encryption of spooling data, see [Encryption](fte-encryption) for details. 
+* - `fault-tolerant-execution.exchange-encryption-enabled`
+  - Enable encryption of spooling data, see [Encryption](fte-encryption) for details.
     Setting this property to false is not recommended if Trino processes sensitive data.
   - ``true``
 :::
@@ -88,13 +91,14 @@ Find further related properties in [](/admin/properties), specifically in
 (fte-retry-policy)=
 ## Retry policy
 
-The `retry-policy` configuration property designates whether Trino retries
-entire queries or a query's individual tasks in the event of failure.
+The `retry-policy` configuration property, or the `retry_policy` session
+property, designates whether Trino retries entire queries or a query's
+individual tasks in the event of failure.
 
 ### QUERY
 
 A `QUERY` retry policy instructs Trino to automatically retry a query in the
-event of an error occuring on a worker node. A `QUERY` retry policy is
+event of an error occurring on a worker node. A `QUERY` retry policy is
 recommended when the majority of the Trino cluster's workload consists of many
 small queries.
 
@@ -338,9 +342,9 @@ fault-tolerant execution:
   - Maximum number of partitions to use for distributed joins and aggregations,
     similar in function to the ``query.max-hash-partition-count`` [query
     management property](/admin/properties-query-management). It is not
-    recommended to increase this property value above the default of `50`, which
-    may result in instability and poor performance. May be overridden for the
-    current session with the `fault_tolerant_execution_max_partition_count`
+    recommended to increase this property value higher than the default of `50`,
+    which may result in instability and poor performance. May be overridden for
+    the current session with the `fault_tolerant_execution_max_partition_count`
     [session property](session-properties-definition).
   - `50`
   - Only `TASK`
@@ -389,7 +393,7 @@ property to `filesystem` or `hdfs`, and set additional configuration properties
 for your storage solution.
 
 The following table lists the available configuration properties for
-`exchange-manager.properties`, their default values, and which filesystem(s)
+`exchange-manager.properties`, their default values, and which file systems
 the property may be configured for:
 
 :::{list-table} Exchange manager configuration properties
@@ -449,12 +453,11 @@ the property may be configured for:
   - AWS S3, GCS
 * - `exchange.s3.endpoint`
   - S3 storage endpoint server if using an S3-compatible storage system that
-    is not AWS. If using AWS S3, this can be ignored unless HTTPS is required 
-    by an AWS bucket policy. If TLS is required, then this property can be 
-    set to an https endpoint such as ``https://s3.us-east-1.amazonaws.com``. 
-    Note that TLS is redundant due to {ref}`automatic encryption <fte-encryption>`. 
-    If using GCS, set it
-    to `https://storage.googleapis.com`.
+    is not AWS. If using AWS S3, this can be ignored unless HTTPS is required
+    by an AWS bucket policy. If TLS is required, then this property can be
+    set to an https endpoint such as ``https://s3.us-east-1.amazonaws.com``.
+    Note that TLS is redundant due to {ref}`automatic encryption <fte-encryption>`.
+    If using GCS, set it to `https://storage.googleapis.com`.
   -
   - Any S3-compatible storage
 * - `exchange.s3.max-error-retries`