yuqi1129 commented on code in PR #7782:
URL: https://github.com/apache/gravitino/pull/7782#discussion_r2250915377
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catalogs/catalog-fileset/src/main/java/org/apache/gravitino/catalog/fileset/FilesetCatalogOperations.java:
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@@ -129,8 +130,76 @@ public class FilesetCatalogOperations extends
ManagedSchemaOperations
private boolean disableFSOps;
+ @VisibleForTesting ScheduledThreadPoolExecutor scheduler;
+ @VisibleForTesting Cache<FileSystemCacheKey, FileSystem> fileSystemCache;
+
FilesetCatalogOperations(EntityStore store) {
this.store = store;
+ scheduler =
+ new ScheduledThreadPoolExecutor(
+ 1,
+ new ThreadFactoryBuilder()
+ .setDaemon(true)
+ .setNameFormat("file-system-cache-for-fileset" + "-%d")
+ .build());
+
+ this.fileSystemCache =
+ Caffeine.newBuilder()
+ .expireAfterAccess(1, TimeUnit.HOURS)
+ .removalListener(
+ (ignored, value, cause) -> {
+ try {
+ ((FileSystem) value).close();
+ } catch (IOException e) {
+ LOG.warn("Failed to close FileSystem instance in cache",
e);
+ }
+ })
+ .scheduler(Scheduler.forScheduledExecutorService(scheduler))
+ .build();
+ }
+
+ static class FileSystemCacheKey {
+ // When the path is a local path without prefixes 'file', the scheme and
authority are both null
+ @Nullable private final String scheme;
Review Comment:
No, a formalized path contains intact `scheme` and `authority`. This is a
protective action, and in some cases, the path has not been formalized.
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