[
https://issues.apache.org/jira/browse/HIVE-24729?focusedWorklogId=573423&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-573423
]
ASF GitHub Bot logged work on HIVE-24729:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 29/Mar/21 11:19
Start Date: 29/Mar/21 11:19
Worklog Time Spent: 10m
Work Description: asinkovits commented on a change in pull request #2106:
URL: https://github.com/apache/hive/pull/2106#discussion_r603210672
##########
File path: common/src/java/org/apache/hadoop/hive/conf/HiveConf.java
##########
@@ -4648,6 +4648,12 @@ private static void
populateLlapDaemonVarsSet(Set<String> llapDaemonVarsSetLocal
LLAP_LRFU_BP_WRAPPER_SIZE("hive.llap.io.lrfu.bp.wrapper.size", 64, "thread
local queue "
+ "used to amortize the lock contention, the idea hear is to try
locking as soon we reach max size / 2 "
+ "and block when max queue size reached"),
+ LLAP_CACHE_REPL_STRATEGY_CLASS("hive.llap.cache.repl.strategy.class", "",
"Strategy class for managing the "
Review comment:
Fixed.
##########
File path:
llap-server/src/java/org/apache/hadoop/hive/llap/cache/BasicLlapCacheReplication.java
##########
@@ -0,0 +1,125 @@
+/*
+ * 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.hadoop.hive.llap.cache;
+
+import com.google.common.annotations.VisibleForTesting;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.hive.conf.HiveConf;
+import org.apache.hadoop.hive.llap.daemon.rpc.LlapDaemonProtocolProtos;
+import org.apache.hadoop.hive.llap.io.api.LlapIo;
+import org.apache.hadoop.hive.llap.io.api.LlapProxy;
+import org.apache.hadoop.hive.registry.RegistryUtilities;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.OutputStream;
+
+import static org.apache.hadoop.hive.conf.HiveConf.ConfVars;
+
+/**
+ * Simple cache replication strategy which saves the content info of the cache
to a file on the local filesystem on
+ * shutdown, and loads it when the daemon starts.
+ */
+public class BasicLlapCacheReplication implements LlapCacheReplication {
Review comment:
Fixed.
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Issue Time Tracking
-------------------
Worklog Id: (was: 573423)
Time Spent: 40m (was: 0.5h)
> Implement strategy for llap cache hydration
> -------------------------------------------
>
> Key: HIVE-24729
> URL: https://issues.apache.org/jira/browse/HIVE-24729
> Project: Hive
> Issue Type: Sub-task
> Reporter: Antal Sinkovits
> Assignee: Antal Sinkovits
> Priority: Major
> Labels: pull-request-available
> Time Spent: 40m
> Remaining Estimate: 0h
>
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