jackye1995 commented on code in PR #4695:
URL: https://github.com/apache/iceberg/pull/4695#discussion_r865460094
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aws/src/main/java/org/apache/iceberg/aws/lakeformation/LakeFormationAwsClientFactory.java:
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@@ -135,24 +141,57 @@ private LakeFormationClient lakeFormation() {
static class LakeFormationCredentialsProvider implements
AwsCredentialsProvider {
private LakeFormationClient client;
private String tableArn;
+ private final long expiryLeadTimeForRefreshInMins;
+
+ private LakeFormationTemporaryCredentials cachedCredentials;
+ private final Cache<String, LakeFormationTemporaryCredentials> cache;
LakeFormationCredentialsProvider(LakeFormationClient lakeFormationClient,
String tableArn) {
this.client = lakeFormationClient;
this.tableArn = tableArn;
+ this.expiryLeadTimeForRefreshInMins = 1;
+ this.cache = Caffeine.newBuilder()
Review Comment:
So this cache is basically used only for its locking feature. This should
work, but wondering if there is any better and simpler way.
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