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Reserve 160kb where backup compressed file

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wuyuechuan
2022-06-30 16:06:37 +08:00
parent 6b90aeccb7
commit 1e44cb5fbc
1 changed files with 2 additions and 2 deletions
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4
src/gausskernel/storage/replication/basebackup.cpp
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@ -1988,8 +1988,8 @@ static void SendCompressedFile(char* readFileName, int basePathLen, struct stat&
BlockNumber totalBlockNum = (BlockNumber)pg_atomic_read_u32(&map->nblocks);
/* some chunks may have been allocated but not used.
* Reserve 0 chunks for avoiding the error when the size of a compressed block extends */
auto reservedChunks = 0;
* Reserve 160kb for avoiding the error when the size of a compressed block extends */
int reservedChunks = (BLCKSZ / chunkSize) * 20;
securec_check(memcpy_s(transfer, pcaFileLen, map, pcaFileLen), "", "");
decltype(statbuf.st_size) realSize = (map->allocated_chunks + reservedChunks) * chunkSize;
statbuf.st_size = statbuf.st_size >= realSize ? statbuf.st_size : realSize;