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mdbx: don't limit reclaimed-pglist if DB full.

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More for 55d190bad9 and https://github.com/erthink/libmdbx/issues/123

Change-Id: Iecd19fe8f159d29a1434d03f43f0b277f2d6ab86
This commit is contained in:
Leonid Yuriev 2020-10-30 19:22:37 +03:00
parent d9ceb84445
commit 70241e25db
1 changed files with 5 additions and 2 deletions
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7
src/core.c
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@ -5261,9 +5261,12 @@ skip_cache:
}
const unsigned gc_len = MDBX_PNL_SIZE(gc_pnl);
/* TODO: provide a user-configurable threshold */
const unsigned threshold_2_stop_gc_reclaiming = MDBX_PNL_MAX / 2;
const unsigned threshold_2_stop_gc_reclaiming = MDBX_PNL_MAX / 4;
if (unlikely(gc_len + MDBX_PNL_SIZE(txn->tw.reclaimed_pglist) >
threshold_2_stop_gc_reclaiming)) {
threshold_2_stop_gc_reclaiming) &&
(pgno_add(txn->mt_next_pgno, num) <= txn->mt_geo.upper ||
gc_len + MDBX_PNL_SIZE(txn->tw.reclaimed_pglist) >=
MDBX_PNL_MAX / 16 * 15)) {
/* Stop reclaiming to avoid overflow the page list.
* This is a rare case while search for a continuously multi-page region
* in a large database. https://github.com/erthink/libmdbx/issues/123 */