commit | 8a38edceb4246a9ae8627ad2e7ee0fbad77acf40 | [log] [tgz] |
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author | dhatchayani <dhatcha.official@gmail.com> | Wed May 15 14:48:20 2019 +0530 |
committer | ravipesala <ravi.pesala@gmail.com> | Fri May 17 12:55:44 2019 +0530 |
tree | a1e150775090669e7d94ebd0f3c1865d7e0cb0e8 | |
parent | ea1e86cc71a49563c426264447a95085dce2d436 [diff] |
[CARBONDATA-3386] Concurrent Merge index and query is failing Problem: Concurrent merge index and query is failing. Load is triggered on a table, at the end of the load Merge index will be triggered. But this is triggered after the table status is updated as SUCCESS/PARTIAL SUCCESS for that segments. So for the concurrent query, this segment is available for query. Once the merge index is done, it deletes the index files, which are still referred by the query, this leads to the query failure. Solution: Trigger merge index before table status updation for all the operations like LOAD, COMPACT. This closes #3221
Apache CarbonData is an indexed columnar data store solution for fast analytics on big data platform, e.g.Apache Hadoop, Apache Spark, etc.
You can find the latest CarbonData document and learn more at: http://carbondata.apache.org
CarbonData file format is a columnar store in HDFS, it has many features that a modern columnar format has, such as splittable, compression schema ,complex data type etc, and CarbonData has following unique features:
CarbonData is built using Apache Maven, to build CarbonData
This is an active open source project for everyone, and we are always open to people who want to use this system or contribute to it. This guide document introduce how to contribute to CarbonData.
To get involved in CarbonData:
Apache CarbonData is an open source project of The Apache Software Foundation (ASF).