CarbonData FAQ

• Why Is Incorrect Output Displayed When I Perform Query with Filter on Decimal Data Type Values?

• How to Avoid Minor Compaction for Historical Data?

• How to Change the Default Group Name for CarbonData Data Loading?

• Why Does INSERT INTO CARBON TABLE Command Fail?

• Why Is the Data Logged in Bad Records Different from the Original Input Data with Escape Characters?

• Why Data Load Performance Decreases due to Bad Records?

• Why INSERT INTO/LOAD DATA Task Distribution Is Incorrect and the Opened Tasks Are Less Than the Available Executors when the Number of Initial Executors Is Zero?

• Why Does CarbonData Require Additional Executors Even Though the Parallelism Is Greater Than the Number of Blocks to Be Processed?

• Why Data loading Fails During off heap?

• Why Do I Fail to Create a Hive Table?

• Why CarbonData tables created in V100R002C50RC1 not reflecting the privileges provided in Hive Privileges for non-owner?

• How Do I Logically Split Data Across Different Namespaces?

• Why Missing Privileges Exception is Reported When I Perform Drop Operation on Databases?

• Why the UPDATE Command Cannot Be Executed in Spark Shell?

• How Do I Configure Unsafe Memory in CarbonData?

• Why Exception Occurs in CarbonData When Disk Space Quota is Set for Storage Directory in HDFS?

• Why Does Data Query or Loading Fail and "org.apache.carbondata.core.memory.MemoryException: Not enough memory" Is Displayed?

last updated: 2025-09-12 13:13 UTC - commit: 24eadb5c5fab74f43c2223ebac5503c93aeae657