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Posted to commits@doris.apache.org by kx...@apache.org on 2023/06/09 04:10:39 UTC

[doris] 03/29: [Fix](hive-catalog) Fallback to refresh catalog when hms events are missing (#20227)

This is an automated email from the ASF dual-hosted git repository.

kxiao pushed a commit to branch branch-2.0-beta
in repository https://gitbox.apache.org/repos/asf/doris.git

commit 188f664359d7ccd804c36ba6189d6e6e941158af
Author: Xiangyu Wang <du...@gmail.com>
AuthorDate: Thu Jun 8 13:43:10 2023 +0800

    [Fix](hive-catalog) Fallback to refresh catalog when hms events are missing (#20227)
    
    This error can not be recovered (the relevant events in hms may have been deleted and can not recovered), so we need a fallback.
---
 .../org/apache/doris/datasource/HMSExternalCatalog.java  | 16 +++++++++++++++-
 .../hadoop/hive/metastore/HiveMetaStoreClient.java       |  2 +-
 2 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/fe/fe-core/src/main/java/org/apache/doris/datasource/HMSExternalCatalog.java b/fe/fe-core/src/main/java/org/apache/doris/datasource/HMSExternalCatalog.java
index 531c626e3d..4d6c8b86fe 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/datasource/HMSExternalCatalog.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/datasource/HMSExternalCatalog.java
@@ -35,6 +35,7 @@ import com.google.common.collect.Lists;
 import org.apache.commons.lang3.math.NumberUtils;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.hive.conf.HiveConf;
+import org.apache.hadoop.hive.metastore.HiveMetaStoreClient;
 import org.apache.hadoop.hive.metastore.api.CurrentNotificationEventId;
 import org.apache.hadoop.hive.metastore.api.NotificationEventResponse;
 import org.apache.hadoop.security.UserGroupInformation;
@@ -215,7 +216,20 @@ public class HMSExternalCatalog extends ExternalCatalog {
             LOG.info("Event id not updated when pulling events on catalog [{}]", hmsExternalCatalog.getName());
             return null;
         }
-        return client.getNextNotification(lastSyncedEventId, Config.hms_events_batch_size_per_rpc, null);
+
+        try {
+            return client.getNextNotification(lastSyncedEventId, Config.hms_events_batch_size_per_rpc, null);
+        } catch (IllegalStateException e) {
+            // Need a fallback to handle this because this error state can not be recovered until restarting FE
+            if (HiveMetaStoreClient.REPL_EVENTS_MISSING_IN_METASTORE.equals(e.getMessage())) {
+                lastSyncedEventId = getCurrentEventId();
+                refreshCatalog(hmsExternalCatalog);
+                LOG.warn("Notification events are missing, maybe an event can not be handled "
+                        + "or processing rate is too low, fallback to refresh the catalog");
+                return null;
+            }
+            throw e;
+        }
     }
 
     private void refreshCatalog(HMSExternalCatalog hmsExternalCatalog) {
diff --git a/fe/fe-core/src/main/java/org/apache/hadoop/hive/metastore/HiveMetaStoreClient.java b/fe/fe-core/src/main/java/org/apache/hadoop/hive/metastore/HiveMetaStoreClient.java
index f3568a98a7..21ade60d07 100644
--- a/fe/fe-core/src/main/java/org/apache/hadoop/hive/metastore/HiveMetaStoreClient.java
+++ b/fe/fe-core/src/main/java/org/apache/hadoop/hive/metastore/HiveMetaStoreClient.java
@@ -320,7 +320,7 @@ public class HiveMetaStoreClient implements IMetaStoreClient, AutoCloseable {
   static final protected Logger LOG = LoggerFactory.getLogger(HiveMetaStoreClient.class);
 
   //copied from ErrorMsg.java
-  private static final String REPL_EVENTS_MISSING_IN_METASTORE = "Notification events are missing in the meta store.";
+  public static final String REPL_EVENTS_MISSING_IN_METASTORE = "Notification events are missing in the meta store.";
 
   public HiveMetaStoreClient(Configuration conf) throws MetaException {
     this(conf, null, true);


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