Re: Changing shared_buffers without restart

On Mon, Apr 7, 2025 at 2:13 PM Dmitry Dolgov <9erthalion6(at)gmail(dot)com> wrote:
>
> In the new v4 version
> of the patch the first option is implemented.
>

The patches don't apply cleanly using git am but patch -p1 applies
them cleanly. However I see following compilation errors
RuntimeError: command "ninja" failed with error [1/1954] Generating
src/include/utils/errcodes with a custom command
[2/1954] Generating src/include/storage/lwlocknames_h with a custom command
[3/1954] Generating src/include/utils/wait_event_names with a custom command
[4/1954] Compiling C object src/port/libpgport.a.p/pg_popcount_aarch64.c.o
[5/1954] Compiling C object src/port/libpgport.a.p/pg_numa.c.o
FAILED: src/port/libpgport.a.p/pg_numa.c.o
cc -Isrc/port/libpgport.a.p -Isrc/include
-I../../coderoot/pg/src/include -fdiagnostics-color=always
-D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Werror -g
-fno-strict-aliasing -fwrapv -fexcess-precision=standard -D_GNU_SOURCE
-Wmissing-prototypes -Wpointer-arith -Werror=vla -Wendif-labels
-Wmissing-format-attribute -Wimplicit-fallthrough=3
-Wcast-function-type -Wshadow=compatible-local -Wformat-security
-Wdeclaration-after-statement -Wno-format-truncation
-Wno-stringop-truncation -fPIC -DFRONTEND -MD -MQ
src/port/libpgport.a.p/pg_numa.c.o -MF
src/port/libpgport.a.p/pg_numa.c.o.d -o
src/port/libpgport.a.p/pg_numa.c.o -c
../../coderoot/pg/src/port/pg_numa.c
In file included from ../../coderoot/pg/src/include/storage/spin.h:54,
from
../../coderoot/pg/src/include/storage/condition_variable.h:26,
from ../../coderoot/pg/src/include/storage/barrier.h:22,
from ../../coderoot/pg/src/include/storage/pg_shmem.h:27,
from ../../coderoot/pg/src/port/pg_numa.c:26:
../../coderoot/pg/src/include/storage/s_lock.h:93:2: error: #error
"s_lock.h may not be included from frontend code"
93 | #error "s_lock.h may not be included from frontend code"
| ^~~~~
In file included from ../../coderoot/pg/src/port/pg_numa.c:26:
../../coderoot/pg/src/include/storage/pg_shmem.h:66:9: error: unknown
type name ‘pg_atomic_uint32’
66 | pg_atomic_uint32 NSharedBuffers;
| ^~~~~~~~~~~~~~~~
../../coderoot/pg/src/include/storage/pg_shmem.h:68:9: error: unknown
type name ‘pg_atomic_uint64’
68 | pg_atomic_uint64 Generation;
| ^~~~~~~~~~~~~~~~
../../coderoot/pg/src/port/pg_numa.c: In function ‘pg_numa_get_pagesize’:
../../coderoot/pg/src/port/pg_numa.c:117:17: error: too few arguments
to function ‘GetHugePageSize’
117 | GetHugePageSize(&os_page_size, NULL);
| ^~~~~~~~~~~~~~~
In file included from ../../coderoot/pg/src/port/pg_numa.c:26:
../../coderoot/pg/src/include/storage/pg_shmem.h:127:13: note: declared here
127 | extern void GetHugePageSize(Size *hugepagesize, int *mmap_flags,
| ^~~~~~~~~~~~~~~

--
Best Wishes,
Ashutosh Bapat