Merge pull request #5 from littleniannian/fix_oracle_conn_limit

fix: failed to oracle connection limit

Author: LordofAvernus

server/odc-core/src/main/java/com/oceanbase/odc/core/session/ConnectionSessionUtil.java

@@ -36,6 +36,7 @@
 import javax.sql.DataSource;
 
 import org.apache.commons.lang3.StringUtils;
+import org.springframework.jdbc.CannotGetJdbcConnectionException;
 import org.springframework.jdbc.core.JdbcOperations;
 import org.springframework.jdbc.core.StatementCallback;
 
@@ -469,6 +470,8 @@ public static void initArchitecture(@NonNull ConnectionSession connectionSession
             Verify.notNull(arch, "Architecture");
             connectionSession.setAttribute(ConnectionSessionConstants.OB_ARCHITECTURE, arch);
             log.debug("Init architecture completed.");
+        } catch (CannotGetJdbcConnectionException e) {
+            throw e;
         } catch (Exception e) {
             log.warn("Query architecture failed, errMsg={}", e.getMessage());
         }