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https://issues.apache.org/jira/browse/PHOENIX-6968?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17770520#comment-17770520
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ASF GitHub Bot commented on PHOENIX-6968:
-----------------------------------------
ranganathg commented on code in PR #1691:
URL: https://github.com/apache/phoenix/pull/1691#discussion_r1341622874
##########
phoenix-core/src/it/java/org/apache/phoenix/end2end/FailingPhoenixRegionServerEndpoint.java:
##########
@@ -0,0 +1,72 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.phoenix.end2end;
+
+import com.google.protobuf.RpcCallback;
+import com.google.protobuf.RpcController;
+import org.apache.phoenix.coprocessor.PhoenixRegionServerEndpoint;
+import org.apache.phoenix.coprocessor.generated.RegionServerEndpointProtos;
+import org.apache.phoenix.protobuf.ProtobufUtil;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+
+import static
org.apache.phoenix.coprocessor.MetaDataEndpointImpl.PHOENIX_METADATA_CACHE_INVALIDATION_TIMEOUT_MS;
+import static
org.apache.phoenix.coprocessor.MetaDataEndpointImpl.PHOENIX_METADATA_CACHE_INVALIDATION_TIMEOUT_MS_DEFAULT;
+
+public class FailingPhoenixRegionServerEndpoint extends
PhoenixRegionServerEndpoint {
+ private static final Logger LOGGER =
LoggerFactory.getLogger(FailingPhoenixRegionServerEndpoint.class);
+
+ private boolean throwException;
+ private boolean shouldSleep;
+
+ @Override
+ public void invalidateServerMetadataCache(RpcController controller,
+ RegionServerEndpointProtos.InvalidateServerMetadataCacheRequest
request,
+
RpcCallback<RegionServerEndpointProtos.InvalidateServerMetadataCacheResponse>
done) {
+ long metadataCacheInvalidationTimeoutMs = conf.getLong(
+ PHOENIX_METADATA_CACHE_INVALIDATION_TIMEOUT_MS,
+ PHOENIX_METADATA_CACHE_INVALIDATION_TIMEOUT_MS_DEFAULT);
+
+ if (throwException == true) {
+ IOException ioe = new IOException("On purpose");
+ ProtobufUtil.setControllerException(controller, ioe);
+ return;
+ } else if (shouldSleep) {
+ try {
+ // Sleeping for 2 seconds more than
metadataCacheInvalidationTimeoutMs.
+ Thread.sleep(metadataCacheInvalidationTimeoutMs + 2000);
+ } catch (InterruptedException e) {
+ LOGGER.warn("Exception while sleeping in
FailingPhoenixRegionServerEndpoint", e);
+ }
+ } else {
+ LOGGER.info("Invalidating server metadata cache");
Review Comment:
should there be a call to invalidateServerMetadataCache()? how does the
cache get invalidated without any call?
> Create PhoenixRegionServerEndpoint#invalidateCache method to invalidate cache.
> ------------------------------------------------------------------------------
>
> Key: PHOENIX-6968
> URL: https://issues.apache.org/jira/browse/PHOENIX-6968
> Project: Phoenix
> Issue Type: Sub-task
> Reporter: Rushabh Shah
> Assignee: Rushabh Shah
> Priority: Major
>
> Whenever we update metadata (like alter table add column, drop table), we
> need to invalidate metadata cache entry (introduced by PHOENIX-6943) on all
> the regionservers which has that cache entry. First step would be to issue an
> invalidate command on all the regionservers irrespective of whether that
> regionserver has the cache entry. We can further optimize by invalidating
> only on RS that has that cache entry.
> In PHOENIX-6988 we created PhoenixRegionServerEndpoint implementing
> RegionServerCoprocessor. We can create a new method in this co-proc something
> like invalidateCache(CacheEntry) to invalidate cache for a given
> table/view/index.
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