Indhumathi27 commented on a change in pull request #3480: [HOTFIX] Do not touch
MDT file when getting datamap schema
URL: https://github.com/apache/carbondata/pull/3480#discussion_r350542596
##########
File path:
core/src/main/java/org/apache/carbondata/core/metadata/schema/table/DiskBasedDMSchemaStorageProvider.java
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@@ -97,7 +97,7 @@ public void saveSchema(DataMapSchema dataMapSchema) throws
IOException {
@Override
public DataMapSchema retrieveSchema(String dataMapName)
throws IOException, NoSuchDataMapException {
- checkAndReloadDataMapSchemas(true);
+ checkAndReloadDataMapSchemas(false);
Review comment:
If there is no mdtFile present, then if we pass `touchFile` as false, then
everytime `datamapSchemas` cache will be loaded from disk. I think it may
impact the performance
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