From: Richard Russon <rich@flatcap.org>
Date: Mon, 12 Dec 2016 22:33:19 +0000 (+0000)
Subject: fix: increase the max lmdb database size
X-Git-Tag: neomutt-20170113~25
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=6d337642e701b1dde4b5d0812e01c85f41ba65ca;p=neomutt

fix: increase the max lmdb database size

A user, with over 400,000 emails was getting the error:

    MDB_MAP_FULL: Environment mapsize limit reached

This commit increases the maximum database size to 2GiB.
The file is mmap(2)'d into memory, so mutt shouldn't actually use this
much memory.

Fixes: #267
---

diff --git a/hcache-lmdb.c b/hcache-lmdb.c
index 9ebaef319..4b35daa95 100644
--- a/hcache-lmdb.c
+++ b/hcache-lmdb.c
@@ -26,9 +26,12 @@
 #include "hcache-backend.h"
 #include "lib.h"
 
-#define LMDB_DB_SIZE (1024 * 1024 * 1024)
 #include <lmdb.h>
 
+/* The maximum size of the database file (2GiB).
+ * The file is mmap(2)'d into memory. */
+const size_t LMDB_DB_SIZE = 2147483648;
+
 enum mdb_txn_mode
 {
   txn_uninitialized = 0,