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Posted to gitbox@hive.apache.org by GitBox <gi...@apache.org> on 2020/12/22 09:34:21 UTC
[GitHub] [hive] aasha opened a new pull request #1804: HIVE-24558 : Handle update in table level regular expression
aasha opened a new pull request #1804:
URL: https://github.com/apache/hive/pull/1804
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[GitHub] [hive] aasha commented on a change in pull request #1804: HIVE-24558 : Handle update in table level regular expression
Posted by GitBox <gi...@apache.org>.
aasha commented on a change in pull request #1804:
URL: https://github.com/apache/hive/pull/1804#discussion_r556280010
##########
File path: ql/src/java/org/apache/hadoop/hive/ql/exec/repl/ReplDumpTask.java
##########
@@ -968,6 +979,9 @@ private boolean shouldResumePreviousDump(Path lastDumpPath, boolean isBootStrap)
return false;
}
Path hiveDumpPath = new Path(lastDumpPath, ReplUtils.REPL_HIVE_BASE_DIR);
+ if (tableExpressionModified(new DumpMetaData(hiveDumpPath, conf))) {
Review comment:
Yes we can reuse the same.
If its bootstrap then also we need this check. Because for bootstrap, we reuse the same directory, delete the metadata dir, but data dir is still reused.
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[GitHub] [hive] pkumarsinha commented on a change in pull request #1804: HIVE-24558 : Handle update in table level regular expression
Posted by GitBox <gi...@apache.org>.
pkumarsinha commented on a change in pull request #1804:
URL: https://github.com/apache/hive/pull/1804#discussion_r554672844
##########
File path: ql/src/java/org/apache/hadoop/hive/ql/exec/repl/ReplDumpTask.java
##########
@@ -410,12 +413,16 @@ private boolean shouldDump(Path previousDumpPath) throws IOException {
* @return true if need to examine tables for dump and false if not.
*/
private boolean shouldExamineTablesToDump() {
- return (work.oldReplScope != null)
+ return (previousReplScopeModified())
|| !tablesForBootstrap.isEmpty()
|| conf.getBoolVar(HiveConf.ConfVars.REPL_BOOTSTRAP_ACID_TABLES)
|| conf.getBoolVar(HiveConf.ConfVars.REPL_INCLUDE_EXTERNAL_TABLES);
}
+ private boolean previousReplScopeModified() {
Review comment:
dmd.setDump(DumpType.BOOTSTRAP, bootDumpBeginReplId, bootDumpEndReplId, cmRoot, executorId,
work.oldReplScope != null);
Shouldn't this line also also previousReplScopeModified() otherwise load will always assume that there is change in expession.
##########
File path: standalone-metastore/metastore-common/src/main/java/org/apache/hadoop/hive/common/repl/ReplScope.java
##########
@@ -116,4 +117,27 @@ private boolean inTableExcludedList(final String tableName) {
}
return excludedTableNamePattern.matcher(tableName).matches();
}
+
+ @Override
+ public boolean equals(Object o) {
+ if (o == this) {
+ return true;
+ }
+ if (! (o instanceof ReplScope)) {
+ return false;
+ }
+
+ ReplScope replScope = (ReplScope)o;
+ return ((replScope.getExcludedTableNames() == null ? (this.excludedTableNames == null) :
+ replScope.getExcludedTableNames().equals(this.excludedTableNames))
Review comment:
nit: getExcludedTableNames() /getIncludedTableNames() methods can be replaced by replScope.excludedTableNamePattern and replScope.includedTableNamePattern respectively.
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[GitHub] [hive] aasha merged pull request #1804: HIVE-24558 : Handle update in table level regular expression
Posted by GitBox <gi...@apache.org>.
aasha merged pull request #1804:
URL: https://github.com/apache/hive/pull/1804
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[GitHub] [hive] pkumarsinha commented on a change in pull request #1804: HIVE-24558 : Handle update in table level regular expression
Posted by GitBox <gi...@apache.org>.
pkumarsinha commented on a change in pull request #1804:
URL: https://github.com/apache/hive/pull/1804#discussion_r556254819
##########
File path: ql/src/java/org/apache/hadoop/hive/ql/exec/repl/ReplDumpTask.java
##########
@@ -968,6 +979,9 @@ private boolean shouldResumePreviousDump(Path lastDumpPath, boolean isBootStrap)
return false;
}
Path hiveDumpPath = new Path(lastDumpPath, ReplUtils.REPL_HIVE_BASE_DIR);
+ if (tableExpressionModified(new DumpMetaData(hiveDumpPath, conf))) {
Review comment:
We can reuse the same DumpMetaData object in the below check also, would avoid FileSystem read call:
if (isBootStrap) {
return shouldResumePreviousDump(new DumpMetaData(hiveDumpPath, conf));
}
Second thing, I was also wondering if isBootStrap is true , do we even need that check or we can simply return false.
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