ajfabbri commented on a change in pull request #802: HADOOP-16279. S3Guard:
Implement time-based (TTL) expiry for entries …
URL: https://github.com/apache/hadoop/pull/802#discussion_r282249645
##########
File path:
hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/s3guard/S3Guard.java
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@@ -549,10 +539,43 @@ public static void putWithTtl(MetadataStore ms,
DirListingMetadata dirMeta,
ms.put(dirMeta);
}
+ public static void putWithTtl(MetadataStore ms, PathMetadata fileMeta,
+ ITtlTimeProvider timeProvider) throws IOException {
+ fileMeta.setLastUpdated(timeProvider.getNow());
+ ms.put(fileMeta);
+ }
+
+ public static void putWithTtl(MetadataStore ms,
+ Collection<PathMetadata> fileMetas, ITtlTimeProvider timeProvider)
+ throws IOException {
+ fileMetas.forEach(
+ fileMeta -> fileMeta.setLastUpdated(timeProvider.getNow())
+ );
+ ms.put(fileMetas);
+ }
+
+ public static PathMetadata getWithTtl(MetadataStore ms, Path path,
+ ITtlTimeProvider timeProvider) throws IOException {
+ long ttl = timeProvider.getMetadataTtl();
+
+ final PathMetadata pathMetadata = ms.get(path);
+
+ if(pathMetadata != null) {
+ if(!pathMetadata.isExpired(ttl, timeProvider.getNow())) {
+ return pathMetadata;
+ } else {
+ LOG.debug("PathMetadata TTl for {} is expired in metadata store.");
Review comment:
debug() is missing format arg here
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