session: fix out of memory in the batch operations #7086
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jackysp
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release-note
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/run-all-tests |
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LGTM |
1 similar comment
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LGTM |
tiancaiamao
approved these changes
Jul 18, 2018
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I've added the test report. PTAL @coocood |
jackysp
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What have you changed? (mandatory)
Batch operations in TiDB (batch_insert, batch_delete, load data) use NewTxn() when reach the batch limitation. TxnCtx in NewTxn() should also be reset, otherwise, it will reference a huge memory which may cause TiDB OOM.
What is the type of the changes? (mandatory)
How has this PR been tested? (mandatory)
manual test
insert 10000000 rows by
Does this PR affect documentation (docs/docs-cn) update? (mandatory)
No.
Does this PR affect tidb-ansible update? (mandatory)
No.
Does this PR need to be added to the release notes? (mandatory)
PTAL @coocood @tiancaiamao