lirui-apache commented on code in PR #6698:
URL: https://github.com/apache/iceberg/pull/6698#discussion_r1132042821
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core/src/main/java/org/apache/iceberg/CatalogProperties.java:
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@@ -119,6 +119,26 @@ private CatalogProperties() {}
"client.pool.cache.eviction-interval-ms";
public static final long CLIENT_POOL_CACHE_EVICTION_INTERVAL_MS_DEFAULT =
TimeUnit.MINUTES.toMillis(5);
+ /**
+ * A comma separated list of elements that are used to compose the key of
the client pool cache.
+ *
+ * <p>The following elements are supported:
+ *
+ * <ul>
+ * <li>URI - as specified by {@link CatalogProperties#URI}. URI will be
the only element when
+ * this property is not set.
+ * <li>UGI - the Hadoop UserGroupInformation instance that represents the
current user using the
+ * cache.
+ * <li>USER_NAME - similar to UGI but only includes the user's name
determined by
+ * UserGroupInformation#getUserName.
+ * <li>CONF - name of an arbitrary configuration. The value of the
configuration will be
Review Comment:
OK. The implementation is actually case-insensitive. I don't have a strong
opinion whether to use upper or lower case.
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