GitHub user xuchuanyin opened a pull request: https://github.com/apache/carbondata/pull/2052
[CARBONDATA-2246][DataLoad] Fix exhausted memory problem during unsafe data loading If the size of unsafe row page equals to that of working memory, the last page will exhaust the working memory and carbondata will suffer 'not enough memory' problem when we convert data to columnar format. All unsafe pages should be spilled to disk or moved to unsafe sort memory instead of be kept in unsafe working memory. Be sure to do all of the following checklist to help us incorporate your contribution quickly and easily: - [x] Any interfaces changed? `NO` - [x] Any backward compatibility impacted? `NO` - [x] Document update required? `NO` - [x] Testing done Please provide details on - Whether new unit test cases have been added or why no new tests are required? `Tests added` - How it is tested? Please attach test report. `Tested in local machine` - Is it a performance related change? Please attach the performance test report. `NO` - Any additional information to help reviewers in testing this change. - [ ] For large changes, please consider breaking it into sub-tasks under an umbrella JIRA. You can merge this pull request into a Git repository by running: $ git pull https://github.com/xuchuanyin/carbondata 0312_bug_unsafe_memory Alternatively you can review and apply these changes as the patch at: https://github.com/apache/carbondata/pull/2052.patch To close this pull request, make a commit to your master/trunk branch with (at least) the following in the commit message: This closes #2052 ---- commit da3329ca60250e07b568f905ba5cdaa115f8d522 Author: xuchuanyin <xuchuanyin@...> Date: 2018-03-12T12:25:17Z Fix exhausted memory problem during unsafe data loading If the size of unsafe row page equals to that of working memory, the last page will exhaust the working memory and carbondata will suffer 'not enough memory' problem when we convert data to columnar format. All unsafe pages should be spilled to disk or moved to unsafe sort memory instead of be kept in unsafe working memory. ---- ---