zhangstar333 commented on code in PR #68813:
URL: https://github.com/apache/doris/pull/68813#discussion_r4227721919
##########
thirdparty/patches/lance-c-foyer.patch:
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@@ -547,32 +6861,9 @@ index
0000000000000000000000000000000000000000..cfc47f1528d11b6be068c09dd4703ff4
+use crate::runtime::block_on;
+use crate::session::{LanceSession, session_new_with_data_cache_factory};
+
-+const CACHE_KEY_VERSION: &str = "lance-data-v2";
++const CACHE_KEY_VERSION: &str = "lance-data-v1";
+const FOYER_PAGE_SIZE: usize = 4096;
+
-+struct OriginNamespace {
-+ origin: Weak<dyn ObjectStore>,
-+ namespace: uuid::Uuid,
-+}
-+
-+static ORIGIN_NAMESPACES: LazyLock<Mutex<HashMap<usize, OriginNamespace>>> =
-+ LazyLock::new(|| Mutex::new(HashMap::new()));
-+
-+fn origin_namespace(origin: &Arc<dyn ObjectStore>) -> uuid::Uuid {
-+ // store_prefix omits endpoint/credentials, and this interface exposes no
stable
-+ // backend identity. Only the same live origin may reuse metadata or data.
-+ // Persist a random namespace, never an address that another process can
reuse.
-+ let mut namespaces = ORIGIN_NAMESPACES.lock().unwrap();
-+ namespaces.retain(|_, entry| entry.origin.strong_count() != 0);
-+ namespaces
-+ .entry(Arc::as_ptr(origin) as *const () as usize)
-+ .or_insert_with(|| OriginNamespace {
-+ origin: Arc::downgrade(origin),
-+ namespace: uuid::Uuid::new_v4(),
-+ })
-+ .namespace
-+}
-+
+/// Configuration for the optional Foyer data-file cache.
+#[repr(C)]
Review Comment:
no
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