diff --git a/tests/common/environ.py b/tests/common/environ.py
index c96571b7c..54ae8f093 100644
--- a/tests/common/environ.py
+++ b/tests/common/environ.py
@@ -413,7 +413,7 @@ class ImpalaTestClusterProperties(object):
     Checks if --hms_event_polling_interval_s is set to non-zero value"""
     try:
       key = "hms_event_polling_interval_s"
-      return key in self.catalogd_runtime_flags and int(
+      return key in self.catalogd_runtime_flags and float(
         self._catalogd_runtime_flags[key]["current"]) > 0
     except Exception:
       if self.is_remote_cluster():
@@ -421,6 +421,22 @@ class ImpalaTestClusterProperties(object):
         LOG.exception(
           "Failed to get flags from web UI, assuming event polling is disabled")
         return False
+      raise
+
+  def is_hierarchical_event_processing_enabled(self):
+    """Whether hierarchical event processing is enabled"""
+    try:
+      key = "enable_hierarchical_event_processing"
+      return self.is_event_polling_enabled() and key in self.catalogd_runtime_flags \
+          and self.runtime_flags[key]["current"] == "true"
+    except Exception:
+      if self.is_remote_cluster():
+        # IMPALA-8553: be more tolerant of failures on remote cluster builds.
+        LOG.exception(
+          "Failed to get flags from web UI, assuming hierarchical event processing is "
+          "disabled")
+        return False
+      raise
 
 def build_flavor_timeout(default_timeout, slow_build_timeout=None,
         asan_build_timeout=None, code_coverage_build_timeout=None):
diff --git a/tests/custom_cluster/test_web_pages.py b/tests/custom_cluster/test_web_pages.py
index b25b3c84c..67d702ff9 100644
--- a/tests/custom_cluster/test_web_pages.py
+++ b/tests/custom_cluster/test_web_pages.py
@@ -27,12 +27,14 @@ import time
 from tests.common.custom_cluster_test_suite import (
   DEFAULT_CLUSTER_SIZE,
   CustomClusterTestSuite)
+from tests.common.environ import ImpalaTestClusterProperties
 from tests.common.impala_connection import IMPALA_CONNECTION_EXCEPTION
 from tests.common.skip import SkipIfFS, SkipIfDockerizedCluster
 from tests.shell.util import run_impala_shell_cmd
 
 SMALL_QUERY_LOG_SIZE_IN_BYTES = 40 * 1024
 CATALOG_URL = "http://localhost:25020/catalog"
+IMPALA_TEST_CLUSTER_PROPERTIES = ImpalaTestClusterProperties.get_instance()
 
 
 class TestWebPage(CustomClusterTestSuite):
@@ -495,8 +497,11 @@ class TestWebPage(CustomClusterTestSuite):
     json_res = json.loads(requests.get("http://localhost:25020/events?json").text)
     new_latest_event_id = json_res["progress-info"]["latest_event_id"]
     assert new_latest_event_id > old_latest_event_id
-    # Current event (the failed one) should not be cleared
-    assert "current_event" in json_res["progress-info"]
+    # Current event batch info is not shown when hierarchical event processing is
+    # enabled since events are dispatched and then processed in parallel.
+    if not IMPALA_TEST_CLUSTER_PROPERTIES.is_hierarchical_event_processing_enabled():
+      # Current event (the failed one) should not be cleared
+      assert "current_event" in json_res["progress-info"]
 
     # Verify the error message disappears after a global INVALIDATE METADATA
     self.execute_query("invalidate metadata")