diff options
| -rw-r--r-- | contrib/pg_prewarm/autoprewarm.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/contrib/pg_prewarm/autoprewarm.c b/contrib/pg_prewarm/autoprewarm.c index 0289ea657cb..ad0323546f7 100644 --- a/contrib/pg_prewarm/autoprewarm.c +++ b/contrib/pg_prewarm/autoprewarm.c @@ -593,8 +593,15 @@ apw_dump_now(bool is_bgworker, bool dump_unlogged) return 0; } - block_info_array = - (BlockInfoRecord *) palloc(sizeof(BlockInfoRecord) * NBuffers); + /* + * With sufficiently large shared_buffers, allocation will exceed 1GB, so + * allow for a huge allocation to prevent outright failure. + * + * (In the future, it might be a good idea to redesign this to use a more + * memory-efficient data structure.) + */ + block_info_array = (BlockInfoRecord *) + palloc_extended((sizeof(BlockInfoRecord) * NBuffers), MCXT_ALLOC_HUGE); for (num_blocks = 0, i = 0; i < NBuffers; i++) { |