forbid invalid all region cache

Signed-off-by: iosmanthus <[email protected]>

src/main/java/org/tikv/common/region/RegionManager.java

@@ -265,7 +265,7 @@ public TiStore getStoreById(long id, BackOffer backOffer) {
     TiStore store = getStoreByIdWithBackOff(id, backOffer);
     if (store == null) {
       logger.warn(String.format("failed to fetch store %d, the store may be missing", id));
-      cache.clearAll();
+      cache.invalidateStore(id);
       throw new InvalidStoreException(id);
     }
     return store;