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https://issues.apache.org/jira/browse/HIVE-24726?focusedWorklogId=553700&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-553700
]
ASF GitHub Bot logged work on HIVE-24726:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 17/Feb/21 16:07
Start Date: 17/Feb/21 16:07
Worklog Time Spent: 10m
Work Description: asinkovits commented on a change in pull request #1961:
URL: https://github.com/apache/hive/pull/1961#discussion_r577739515
##########
File path:
llap-server/src/java/org/apache/hadoop/hive/llap/cache/MemoryLimitedPathCache.java
##########
@@ -0,0 +1,60 @@
+/*
+ * Licensed 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.cache.Cache;
+import com.google.common.cache.CacheBuilder;
+import com.google.common.cache.Weigher;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.hive.conf.HiveConf;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Memory limited version of the path cache.
+ */
+public class MemoryLimitedPathCache implements PathCache {
+
+ private static final Logger LOG =
LoggerFactory.getLogger(MemoryLimitedPathCache.class);
+ private Cache<Object, String> internalCache;
+
+ public MemoryLimitedPathCache(Configuration conf) {
+ internalCache = CacheBuilder.newBuilder()
+ .maximumWeight(HiveConf.getSizeVar(conf,
HiveConf.ConfVars.LLAP_IO_PATH_CACHE_SIZE))
+ .weigher(new PathWeigher())
+ .build();
+ }
+
+ @Override
+ public void touch(Object key, String val) {
+ if (key != null) {
+ internalCache.put(key, val);
+ }
+ }
+
+ @Override
+ public String resolve(Object key) {
+ return key != null ? internalCache.getIfPresent(key) : null;
+ }
+
+ private static class PathWeigher implements Weigher<Object, String> {
+
+ @Override
+ public int weigh(Object key, String value) {
+ // String memory footprint
Review comment:
Done.
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Issue Time Tracking
-------------------
Worklog Id: (was: 553700)
Time Spent: 40m (was: 0.5h)
> Track required data for cache hydration
> ---------------------------------------
>
> Key: HIVE-24726
> URL: https://issues.apache.org/jira/browse/HIVE-24726
> 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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