Add configurable max elapsed time

crates/deltalake-aws/src/errors.rs

@@ -1,5 +1,7 @@
 //! Errors for S3 log store backed by DynamoDb
 
+use std::num::ParseIntError;
+
 use rusoto_core::RusotoError;
 use rusoto_dynamodb::{CreateTableError, GetItemError, PutItemError, QueryError, UpdateItemError};
 
@@ -24,6 +26,13 @@ pub enum DynamoDbConfigError {
     /// Billing mode string invalid
     #[error("Invalid billing mode : {0}, supported values : ['provided', 'pay_per_request']")]
     InvalidBillingMode(String),
+
+    /// Cannot parse max_elapsed_request_time value into u64
+    #[error("Cannot parse max elapsed request time into u64: {source}")]
+    ParseMaxElapsedRequestTime {
+        // config_value: String,
+        source: ParseIntError,
+    },
 }
 
 /// Errors produced by `DynamoDbLockClient`

crates/deltalake-aws/src/lib.rs

@@ -119,32 +119,37 @@ impl std::fmt::Debug for DynamoDbLockClient {
 impl DynamoDbLockClient {
     /// Creates a new DynamoDbLockClient from the supplied storage options.
     pub fn try_new(
-        lock_table_name: Option<&String>,
-        billing_mode: Option<&String>,
+        lock_table_name: Option<String>,
+        billing_mode: Option<String>,
+        max_elapsed_request_time: Option<String>,
         region: Region,
         use_web_identity: bool,
     ) -> Result<Self, DynamoDbConfigError> {
         let dynamodb_client = create_dynamodb_client(region.clone(), use_web_identity)?;
-        let lock_table_name = lock_table_name.map_or_else(
-            || {
-                std::env::var(constants::LOCK_TABLE_KEY_NAME)
-                    .unwrap_or(constants::DEFAULT_LOCK_TABLE_NAME.to_owned())
-            },
-            Clone::clone,
-        );
 
-        let billing_mode: BillingMode = billing_mode.map_or_else(
-            || {
-                std::env::var(constants::BILLING_MODE_KEY_NAME).map_or_else(
-                    |_| Ok(BillingMode::PayPerRequest),
-                    |bm| BillingMode::from_str(&bm),
-                )
-            },
-            |bm| BillingMode::from_str(bm),
-        )?;
+        let lock_table_name = lock_table_name
+            .or_else(|| std::env::var(constants::LOCK_TABLE_KEY_NAME).ok())
+            .unwrap_or(constants::DEFAULT_LOCK_TABLE_NAME.to_owned());
+
+        let billing_mode = billing_mode
+            .or_else(|| std::env::var(constants::BILLING_MODE_KEY_NAME).ok())
+            .map_or_else(
+                || Ok(BillingMode::PayPerRequest),
+                |bm| BillingMode::from_str(&bm),
+            )?;
+
+        let max_elapsed_request_time = max_elapsed_request_time
+            .or_else(|| std::env::var(constants::MAX_ELAPSED_REQUEST_TIME_KEY_NAME).ok())
+            .map_or_else(
+                || Ok(Duration::from_secs(60)),
+                |secs| u64::from_str(&secs).map(Duration::from_secs),
+            )
+            .map_err(|err| DynamoDbConfigError::ParseMaxElapsedRequestTime { source: err })?;
+
         let config = DynamoDbConfig {
             billing_mode,
             lock_table_name,
+            max_elapsed_request_time,
             use_web_identity,
             region,
         };
@@ -204,6 +209,10 @@ impl DynamoDbLockClient {
         self.config.lock_table_name.clone()
     }
 
+    pub fn get_dynamodb_config(&self) -> &DynamoDbConfig {
+        &self.config
+    }
+
     fn get_primary_key(&self, version: i64, table_path: &str) -> HashMap<String, AttributeValue> {
         maplit::hashmap! {
             constants::ATTR_TABLE_PATH.to_owned()  => string_attr(table_path),
@@ -223,16 +232,19 @@ impl DynamoDbLockClient {
             key: self.get_primary_key(version, table_path),
             ..Default::default()
         };
-        let item = retry(|| async {
-            match self.dynamodb_client.get_item(input.clone()).await {
-                Ok(x) => Ok(x),
-                Err(RusotoError::Service(GetItemError::ProvisionedThroughputExceeded(_))) => Err(
-                    backoff::Error::transient(LockClientError::ProvisionedThroughputExceeded),
-                ),
-                Err(err) => Err(backoff::Error::permanent(err.into())),
-            }
-        })
-        .await?;
+        let item = self
+            .retry(|| async {
+                match self.dynamodb_client.get_item(input.clone()).await {
+                    Ok(x) => Ok(x),
+                    Err(RusotoError::Service(GetItemError::ProvisionedThroughputExceeded(_))) => {
+                        Err(backoff::Error::transient(
+                            LockClientError::ProvisionedThroughputExceeded,
+                        ))
+                    }
+                    Err(err) => Err(backoff::Error::permanent(err.into())),
+                }
+            })
+            .await?;
         item.item.as_ref().map(CommitEntry::try_from).transpose()
     }
 
@@ -249,7 +261,7 @@ impl DynamoDbLockClient {
             item,
             ..Default::default()
         };
-        retry(|| async {
+        self.retry(|| async {
             match self.dynamodb_client.put_item(input.clone()).await {
                 Ok(_) => Ok(()),
                 Err(RusotoError::Service(PutItemError::ProvisionedThroughputExceeded(_))) => Err(
@@ -299,16 +311,17 @@ impl DynamoDbLockClient {
             ),
             ..Default::default()
         };
-        let query_result = retry(|| async {
-            match self.dynamodb_client.query(input.clone()).await {
-                Ok(result) => Ok(result),
-                Err(RusotoError::Service(QueryError::ProvisionedThroughputExceeded(_))) => Err(
-                    backoff::Error::transient(LockClientError::ProvisionedThroughputExceeded),
-                ),
-                Err(err) => Err(backoff::Error::permanent(err.into())),
-            }
-        })
-        .await?;
+        let query_result = self
+            .retry(|| async {
+                match self.dynamodb_client.query(input.clone()).await {
+                    Ok(result) => Ok(result),
+                    Err(RusotoError::Service(QueryError::ProvisionedThroughputExceeded(_))) => Err(
+                        backoff::Error::transient(LockClientError::ProvisionedThroughputExceeded),
+                    ),
+                    Err(err) => Err(backoff::Error::permanent(err.into())),
+                }
+            })
+            .await?;
 
         query_result
             .items
@@ -342,7 +355,7 @@ impl DynamoDbLockClient {
             ..Default::default()
         };
 
-        retry(|| async {
+        self.retry(|| async {
             match self.dynamodb_client.update_item(input.clone()).await {
                 Ok(_) => Ok(UpdateLogEntryResult::UpdatePerformed),
                 Err(RusotoError::Service(UpdateItemError::ConditionalCheckFailed(_))) => {
@@ -358,19 +371,19 @@ impl DynamoDbLockClient {
         })
         .await
     }
-}
 
-async fn retry<I, E, Fn, Fut>(operation: Fn) -> Result<I, E>
-where
-    Fn: FnMut() -> Fut,
-    Fut: std::future::Future<Output = Result<I, backoff::Error<E>>>,
-{
-    let backoff = backoff::ExponentialBackoffBuilder::new()
-        .with_multiplier(2.)
-        .with_max_interval(Duration::from_secs(15))
-        .with_max_elapsed_time(Some(Duration::from_secs(60)))
-        .build();
-    backoff::future::retry(backoff, operation).await
+    async fn retry<I, E, Fn, Fut>(&self, operation: Fn) -> Result<I, E>
+    where
+        Fn: FnMut() -> Fut,
+        Fut: std::future::Future<Output = Result<I, backoff::Error<E>>>,
+    {
+        let backoff = backoff::ExponentialBackoffBuilder::new()
+            .with_multiplier(2.)
+            .with_max_interval(Duration::from_secs(15))
+            .with_max_elapsed_time(Some(self.config.max_elapsed_request_time))
+            .build();
+        backoff::future::retry(backoff, operation).await
+    }
 }
 
 #[derive(Debug, PartialEq)]
@@ -443,7 +456,7 @@ fn create_value_map(
 }
 
 #[derive(Debug, PartialEq)]
-enum BillingMode {
+pub enum BillingMode {
     PayPerRequest,
     Provisioned,
 }
@@ -471,10 +484,11 @@ impl FromStr for BillingMode {
 
 #[derive(Debug, PartialEq)]
 pub struct DynamoDbConfig {
-    billing_mode: BillingMode,
-    lock_table_name: String,
-    use_web_identity: bool,
-    region: Region,
+    pub billing_mode: BillingMode,
+    pub lock_table_name: String,
+    pub max_elapsed_request_time: Duration,
+    pub use_web_identity: bool,
+    pub region: Region,
 }
 
 /// Represents the possible, positive outcomes of calling `DynamoDbClient::try_create_lock_table()`
@@ -495,6 +509,7 @@ pub mod constants {
     pub const DEFAULT_LOCK_TABLE_NAME: &str = "delta_log";
     pub const LOCK_TABLE_KEY_NAME: &str = "DELTA_DYNAMO_TABLE_NAME";
     pub const BILLING_MODE_KEY_NAME: &str = "DELTA_DYNAMO_BILLING_MODE";
+    pub const MAX_ELAPSED_REQUEST_TIME_KEY_NAME: &str = "DELTA_DYNAMO_MAX_ELAPSED_REQUEST_TIME";
 
     pub const ATTR_TABLE_PATH: &str = "tablePath";
     pub const ATTR_FILE_NAME: &str = "fileName";

crates/deltalake-aws/src/logstore.rs

@@ -45,8 +45,18 @@ impl S3DynamoDbLogStore {
         object_store: ObjectStoreRef,
     ) -> DeltaResult<Self> {
         let lock_client = DynamoDbLockClient::try_new(
-            s3_options.extra_opts.get(constants::LOCK_TABLE_KEY_NAME),
-            s3_options.extra_opts.get(constants::BILLING_MODE_KEY_NAME),
+            s3_options
+                .extra_opts
+                .get(constants::LOCK_TABLE_KEY_NAME)
+                .cloned(),
+            s3_options
+                .extra_opts
+                .get(constants::BILLING_MODE_KEY_NAME)
+                .cloned(),
+            s3_options
+                .extra_opts
+                .get(constants::MAX_ELAPSED_REQUEST_TIME_KEY_NAME)
+                .cloned(),
             s3_options.region.clone(),
             s3_options.use_web_identity,
         )
@@ -56,7 +66,6 @@ impl S3DynamoDbLogStore {
                 source: err.into(),
             },
         })?;
-        debug!("S3DynamoDbLogStore configured with lock client: {lock_client:?}");
         let table_path = to_uri(&location, &Path::from(""));
         Ok(Self {
             storage: object_store,

crates/deltalake-aws/tests/integration_s3_dynamodb.rs

@@ -7,7 +7,7 @@ use std::time::{Duration, SystemTime, UNIX_EPOCH};
 
 use deltalake_aws::logstore::{RepairLogEntryResult, S3DynamoDbLogStore};
 use deltalake_aws::storage::S3StorageOptions;
-use deltalake_aws::{CommitEntry, DynamoDbLockClient};
+use deltalake_aws::{CommitEntry, DynamoDbConfig, DynamoDbLockClient};
 use deltalake_core::kernel::{Action, Add, DataType, PrimitiveType, StructField, StructType};
 use deltalake_core::logstore::LogStore;
 use deltalake_core::operations::transaction::{commit, prepare_commit};
@@ -35,21 +35,46 @@ lazy_static! {
 }
 
 fn make_client() -> TestResult<DynamoDbLockClient> {
+    let options: S3StorageOptions = S3StorageOptions::default();
     Ok(DynamoDbLockClient::try_new(
         None,
         None,
-        S3_OPTIONS.region.clone(),
+        None,
+        options.region.clone(),
         false,
     )?)
 }
 
 #[test]
 #[serial]
-fn client_config_picks_up_lock_table_name() -> TestResult<()> {
-    let _context = IntegrationContext::new(Box::new(S3Integration::default()))?;
-    assert!(make_client()?
-        .get_lock_table_name()
-        .starts_with("delta_log_it_"));
+fn client_configs_via_env_variables() -> TestResult<()> {
+    std::env::set_var(
+        deltalake_aws::constants::MAX_ELAPSED_REQUEST_TIME_KEY_NAME,
+        "64",
+    );
+    std::env::set_var(
+        deltalake_aws::constants::LOCK_TABLE_KEY_NAME,
+        "some_table".to_owned(),
+    );
+    std::env::set_var(
+        deltalake_aws::constants::BILLING_MODE_KEY_NAME,
+        "PAY_PER_REQUEST".to_owned(),
+    );
+    let client = make_client()?;
+    let config = client.get_dynamodb_config();
+    assert_eq!(
+        DynamoDbConfig {
+            billing_mode: deltalake_aws::BillingMode::PayPerRequest,
+            lock_table_name: "some_table".to_owned(),
+            max_elapsed_request_time: Duration::from_secs(64),
+            use_web_identity: false,
+            region: config.region.clone(),
+        },
+        *config,
+    );
+    std::env::remove_var(deltalake_aws::constants::LOCK_TABLE_KEY_NAME);
+    std::env::remove_var(deltalake_aws::constants::MAX_ELAPSED_REQUEST_TIME_KEY_NAME);
+    std::env::remove_var(deltalake_aws::constants::BILLING_MODE_KEY_NAME);
     Ok(())
 }