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mdbx: skip update meta-geo in read-only mode.

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Change-Id: I1c9610920ad87dc8110e8d03038ef385220000c8
This commit is contained in:
Leonid Yuriev 2020-09-05 11:57:34 +03:00
parent 426d207fc4
commit 538d2e4d62
1 changed files with 38 additions and 27 deletions
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21
src/core.c
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@ -9709,8 +9709,7 @@ static int __cold mdbx_setup_dxb(MDBX_env *env, const int lck_rc) {
env->me_dxb_mmap.current); env->me_dxb_mmap.current);
return MDBX_PROBLEM; return MDBX_PROBLEM;
} }
if (env->me_dxb_mmap.current != env->me_dbgeo.now && if (env->me_dxb_mmap.current != env->me_dbgeo.now) {
(env->me_flags & MDBX_RDONLY) == 0) {
meta.mm_geo.now = bytes2pgno(env, env->me_dxb_mmap.current); meta.mm_geo.now = bytes2pgno(env, env->me_dxb_mmap.current);
mdbx_verbose("update meta-geo to filesize %" PRIuPTR " bytes, %" PRIaPGNO mdbx_verbose("update meta-geo to filesize %" PRIuPTR " bytes, %" PRIaPGNO
" pages", " pages",
@ -9718,9 +9717,19 @@ static int __cold mdbx_setup_dxb(MDBX_env *env, const int lck_rc) {
} }
if (memcmp(&meta.mm_geo, &head->mm_geo, sizeof(meta.mm_geo))) { if (memcmp(&meta.mm_geo, &head->mm_geo, sizeof(meta.mm_geo))) {
if (env->me_flags & MDBX_RDONLY) {
mdbx_warning(
"skipped update meta.geo in read-only mode: from l%" PRIaPGNO
"-n%" PRIaPGNO "-u%" PRIaPGNO "/s%u-g%u, to l%" PRIaPGNO
"-n%" PRIaPGNO "-u%" PRIaPGNO "/s%u-g%u",
head->mm_geo.lower, head->mm_geo.now, head->mm_geo.upper,
head->mm_geo.shrink, head->mm_geo.grow, meta.mm_geo.lower,
meta.mm_geo.now, meta.mm_geo.upper, meta.mm_geo.shrink,
meta.mm_geo.grow);
} else {
const txnid_t txnid = mdbx_meta_txnid_stable(env, head); const txnid_t txnid = mdbx_meta_txnid_stable(env, head);
const txnid_t next_txnid = safe64_txnid_next(txnid); const txnid_t next_txnid = safe64_txnid_next(txnid);
mdbx_verbose("updating meta.geo: " mdbx_notice("updating meta.geo: "
"from l%" PRIaPGNO "-n%" PRIaPGNO "-u%" PRIaPGNO "from l%" PRIaPGNO "-n%" PRIaPGNO "-u%" PRIaPGNO
"/s%u-g%u (txn#%" PRIaTXN "), " "/s%u-g%u (txn#%" PRIaTXN "), "
"to l%" PRIaPGNO "-n%" PRIaPGNO "-u%" PRIaPGNO "to l%" PRIaPGNO "-n%" PRIaPGNO "-u%" PRIaPGNO
@ -9741,12 +9750,14 @@ static int __cold mdbx_setup_dxb(MDBX_env *env, const int lck_rc) {
"/s%u-g%u (txn#%" PRIaTXN ")", "/s%u-g%u (txn#%" PRIaTXN ")",
err, head->mm_geo.lower, head->mm_geo.now, err, head->mm_geo.lower, head->mm_geo.now,
head->mm_geo.upper, head->mm_geo.shrink, head->mm_geo.grow, head->mm_geo.upper, head->mm_geo.shrink, head->mm_geo.grow,
txnid, meta.mm_geo.lower, meta.mm_geo.now, meta.mm_geo.upper, txnid, meta.mm_geo.lower, meta.mm_geo.now,
meta.mm_geo.shrink, meta.mm_geo.grow, next_txnid); meta.mm_geo.upper, meta.mm_geo.shrink, meta.mm_geo.grow,
next_txnid);
return err; return err;
} }
} }
} }
}
*env->me_discarded_tail = bytes2pgno(env, used_aligned2os_bytes); *env->me_discarded_tail = bytes2pgno(env, used_aligned2os_bytes);
if (used_aligned2os_bytes < env->me_dxb_mmap.current) { if (used_aligned2os_bytes < env->me_dxb_mmap.current) {