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| author | Michael Cahill <michael.cahill@mongodb.com> | 2015-10-09 17:25:27 +1100 |
|---|---|---|
| committer | Alex Gorrod <alexander.gorrod@mongodb.com> | 2016-08-03 02:36:32 +0000 |
| commit | a5c67bdec9d3e3eb9de529186cfaa0014d998871 (patch) | |
| tree | 5b6a78e883b6483a7d5eee9f6c0157d094a9dc97 | |
| parent | 1607e9204c3be422adcb293cfdc64a567c5c9987 (diff) | |
| download | mongodb-3.0.13.tar.gz | |
WT-2139 At read-uncommitted isolation, keep the same ID pinned while cursors are positioned.mongodb-3.0.13
| -rw-r--r-- | src/include/txn.i | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/src/include/txn.i b/src/include/txn.i index d7d958e801e..4cf6653d988 100644 --- a/src/include/txn.i +++ b/src/include/txn.i @@ -457,13 +457,10 @@ __wt_txn_cursor_op(WT_SESSION_IMPL *session) * further forward, so that once a read-uncommitted cursor is * positioned on a value, it can't be freed. */ - if (txn->isolation == WT_ISO_READ_UNCOMMITTED && - !F_ISSET(txn, WT_TXN_HAS_ID) && - WT_TXNID_LT(txn_state->snap_min, txn_global->last_running)) - txn_state->snap_min = txn_global->last_running; - - if (txn->isolation != WT_ISO_READ_UNCOMMITTED && - !F_ISSET(txn, WT_TXN_HAS_SNAPSHOT)) + if (txn->isolation == WT_ISO_READ_UNCOMMITTED) { + if (txn_state->snap_min == WT_TXN_NONE) + txn_state->snap_min = txn_global->last_running; + } else if (!F_ISSET(txn, WT_TXN_HAS_SNAPSHOT)) __wt_txn_get_snapshot(session); } |