[
https://issues.apache.org/jira/browse/HIVE-23353?focusedWorklogId=434410&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-434410
]
ASF GitHub Bot logged work on HIVE-23353:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 18/May/20 14:26
Start Date: 18/May/20 14:26
Worklog Time Spent: 10m
Work Description: pkumarsinha commented on a change in pull request #1021:
URL: https://github.com/apache/hive/pull/1021#discussion_r426666281
##########
File path: ql/src/java/org/apache/hadoop/hive/ql/exec/repl/AtlasDumpWork.java
##########
@@ -0,0 +1,107 @@
+/*
+ * 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.ql.exec.repl;
+
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.hive.conf.HiveConf;
+import org.apache.hadoop.hive.metastore.utils.StringUtils;
+import org.apache.hadoop.hive.ql.exec.repl.atlas.AtlasReplInfo;
+import org.apache.hadoop.hive.ql.exec.repl.util.ReplUtils;
+import org.apache.hadoop.hive.ql.parse.EximUtil;
+import org.apache.hadoop.hive.ql.parse.SemanticException;
+import org.apache.hadoop.hive.ql.plan.Explain;
+import org.apache.hadoop.hive.ql.plan.Explain.Level;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.io.Serializable;
+import java.nio.charset.Charset;
+
+/**
+ * Atlas metadata replication work.
+ */
+@Explain(displayName = "Atlas Meta Data Dump Work", explainLevels = {
Level.USER, Level.DEFAULT, Level.EXTENDED })
+public class AtlasDumpWork implements Serializable {
+ private static final long serialVersionUID = 1L;
+ private final String srcDB;
+ private final Path stagingDir;
+ private final HiveConf conf;
+ private final boolean bootstrap;
+ private final Path prevAtlasDumpDir;
+
+
+ public AtlasDumpWork(String srcDB, Path stagingDir, boolean bootstrap, Path
prevAtlasDumpDir, HiveConf conf) {
+ this.srcDB = srcDB;
+ this.stagingDir = stagingDir;
+ this.bootstrap = bootstrap;
+ this.prevAtlasDumpDir = prevAtlasDumpDir;
+ this.conf = conf;
+ }
+
+ public AtlasReplInfo getAtlasReplInfo() throws SemanticException{
+ String endpoint =
getNonEmpty(HiveConf.ConfVars.REPL_ATLAS_ENDPOINT.varname);
+ String tgtDB =
getNonEmpty(HiveConf.ConfVars.REPL_ATLAS_REPLICATED_TO_DB.varname);
+ String srcCluster =
getNonEmpty(HiveConf.ConfVars.REPL_SOURCE_CLUSTER_NAME.varname);
+ String tgtCluster =
getNonEmpty(HiveConf.ConfVars.REPL_TARGET_CLUSTER_NAME.varname);
+ AtlasReplInfo atlasReplInfo = new AtlasReplInfo(endpoint, srcDB, tgtDB,
srcCluster, tgtCluster, stagingDir, conf);
+ atlasReplInfo.setSrcFsUri(conf.get(ReplUtils.DEFAULT_FS_CONFIG));
+ long lastTimeStamp = isBootstrap() ? 0L : lastStoredTimeStamp();
+ atlasReplInfo.setTimeStamp(lastTimeStamp);
+ return atlasReplInfo;
+ }
+
+ private long lastStoredTimeStamp() throws SemanticException {
+ Path prevMetadataPath = new Path(getPrevAtlasDumpDir(),
EximUtil.METADATA_NAME);
+ BufferedReader br = null;
+ try {
+ FileSystem fs = prevMetadataPath.getFileSystem(conf);
+ br = new BufferedReader(new InputStreamReader(fs.open(prevMetadataPath),
Charset.defaultCharset()));
+ String[] lineContents = br.readLine().split("\t", 5);
+ return Long.parseLong(lineContents[1]);
+ } catch (Exception ex) {
+ throw new SemanticException(ex);
+ } finally {
+ if (br != null) {
+ try {
+ br.close();
+ } catch (IOException e) {
+ throw new SemanticException(e);
+ }
+ }
+ }
+ }
+
+ private String getNonEmpty(String config) throws SemanticException {
+ String val = conf.get(config);
+ if (StringUtils.isEmpty(val)) {
+ throw new SemanticException(config + " is mandatory config for Atlas
metadata replication");
+ }
+ return val;
+ }
+
+ public boolean isBootstrap() {
+ return bootstrap;
+ }
+
+ public Path getPrevAtlasDumpDir() {
Review comment:
During incremental we load the changeMarker info from prev dump.
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Issue Time Tracking
-------------------
Worklog Id: (was: 434410)
Time Spent: 1h 10m (was: 1h)
> Atlas metadata replication scheduling
> -------------------------------------
>
> Key: HIVE-23353
> URL: https://issues.apache.org/jira/browse/HIVE-23353
> Project: Hive
> Issue Type: Task
> Reporter: PRAVIN KUMAR SINHA
> Assignee: PRAVIN KUMAR SINHA
> Priority: Major
> Labels: pull-request-available
> Attachments: HIVE-23353.01.patch
>
> Time Spent: 1h 10m
> Remaining Estimate: 0h
>
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