Hello,
If you execute pg_receivewal.exe with the option "--compression-method
gzip" it will fail with no error. You can see an error in the db log:
2022-02-10 11:46:32.725 CET [11664][walsender] [pg_receivewal][3/0:0] LOG:
could not receive data from client: An existing connection was forcibly
closed by the remote host.
Tracing the execution you can see:
Unhandled exception at 0x00007FFEA78C1208 (ucrtbase.dll) in An invalid
parameter was passed to a function that considers invalid parameters fatal.
ucrtbase.dll!00007ff8e8ae36a2() Unknown
> zlib1.dll!gz_comp(gz_state * state, int flush) Line 111 C
zlib1.dll!gz_write(gz_state * state, const void * buf, unsigned __int64
len) Line 235 C
pg_receivewal.exe!dir_write(void * f, const void * buf, unsigned __int64
count) Line 300 C
pg_receivewal.exe!ProcessXLogDataMsg(pg_conn * conn, StreamCtl * stream,
char * copybuf, int len, unsigned __int64 * blockpos) Line 1150 C
pg_receivewal.exe!HandleCopyStream(pg_conn * conn, StreamCtl * stream,
unsigned __int64 * stoppos) Line 850 C
pg_receivewal.exe!ReceiveXlogStream(pg_conn * conn, StreamCtl * stream)
Line 605 C
pg_receivewal.exe!StreamLog() Line 636 C
pg_receivewal.exe!main(int argc, char * * argv) Line 1005 C
The problem comes from the file descriptor passed to gzdopen() in
'src/bin/pg_basebackup/walmethods.c'. Using gzopen() instead, solves the
issue without ifdefing for WIN32. Please find attached a patch for so.
Regards,
Juan José Santamaría Flecha
diff --git a/src/bin/pg_basebackup/walmethods.c b/src/bin/pg_basebackup/walmethods.c
index a6d08c1..bc0790a 100644
--- a/src/bin/pg_basebackup/walmethods.c
+++ b/src/bin/pg_basebackup/walmethods.c
@@ -143,7 +143,7 @@ dir_open_for_write(const char *pathname, const char *temp_suffix, size_t pad_to_
#ifdef HAVE_LIBZ
if (dir_data->compression_method == COMPRESSION_GZIP)
{
- gzfp = gzdopen(fd, "wb");
+ gzfp = gzopen(tmppath, "wb");
if (gzfp == NULL)
{
dir_data->lasterrno = errno;
