diff options
| -rw-r--r-- | src/btree/bt_io.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/src/btree/bt_io.c b/src/btree/bt_io.c index 3ff395dbbfd..28d98a4ffc9 100644 --- a/src/btree/bt_io.c +++ b/src/btree/bt_io.c @@ -52,9 +52,22 @@ __wt_bt_read(WT_SESSION_IMPL *session, "configured"); /* - * We're allocating the exact number of bytes we're expecting + * Size the buffer based on the in-memory bytes we're expecting * from decompression. + * + * XXX + * The underlying LZ4 raw compression API may have compressed + * more data than we're actually going to use, in other words, + * the final in-memory size of the decompressed data isn't big + * enough and LZ4 decompression might fail where the destination + * buffer is too small. The target size for LZ4 raw compression + * is the maximum page size: start with the maximum page size + * to be sure we allocate enough room, then call one more time + * to allow the in-memory size to override and set the buffer's + * final size to the in-memory size. */ + WT_ERR(__wt_buf_initsize(session, + buf, WT_MAX(btree->maxleafpage, btree->maxintlpage))); WT_ERR(__wt_buf_initsize(session, buf, dsk->mem_size)); /* |