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Hello

I have compiled the patched version ( (based on Postgres 13)) from https://github.com/postgrespro/postgres_cluster/tree/rel13_mm_2

and got the message "All of PostgreSQL successfully made. Ready to install."

Next, I see that the contrib/mmts folder is already in the repository. I go to the folder and try to run the command "make install". I get
the make error: * * * There is no rule for building the target "src/multimaster. o" required for "multimaster.so". Stop.

OK, I'm going the other way. Deleted the "contrib/mmts" folder and executed command chain:

cd contrib
git clone https://github.com/postgrespro/mmts/
cd mmts
make install

Then I got the error
src/multimaster. c:13:10: fatal error: access/table. h: There is no such file or directory
#include "access/table.h"

There really is no such file in the "patched version" (based on Postgres 13), but there is in PostgreSQL 13.

As an experiment, I try to throw up the missing files from the original PostgreSQL 13.
I get errors:

src/multimaster. c:1834:18: error: "BackgroundWorker" {aka "struct BackgroundWorker"} has no member named "bgw_type"; did you mean "bgw_name"?
src/multimaster.c:1845:2: error: unknown type name "TableScanDesc"; did you mean "HeapScanDesc"?

etc.

What did I do wrong to build mmts from source ? Should the mmts build currently be done with PostgreSQL 12/13 (not Postgres Pro)? What other patches should be used for this? Are the patches publicly available?

Hello, I am looking for a Multimaster solution for postgres. I am interested in this project. But when I try to compile I get an error. Can you help me.
here is the error message:
user@user:/tmp/mmts$ sudo make install Makefile:91: warning: overriding recipe for target 'check' /usr/lib/postgresql/13/lib/pgxs/src/makefiles/pgxs.mk:433: warning: ignoring old recipe for target 'check' gcc -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Werror=vla -Wendif-labels -Wmissing-format-attribute -Wimplicit-fallthrough=3 -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -Wno-format-truncation -Wno-stringop-truncation -g -g -O2 -flto=auto -ffat-lto-objects -fstack-protector-strong -Wformat -Werror=format-security -fno-omit-frame-pointer -fPIC -I/tmp/mmts/src/include -I/usr/include/postgresql -I. -I./ -I/usr/include/postgresql/13/server -I/usr/include/postgresql/internal -Wdate-time -D_FORTIFY_SOURCE=2 -D_GNU_SOURCE -I/usr/include/libxml2 -c -o src/multimaster.o src/multimaster.c src/multimaster.c: In function ‘_PG_init’: src/multimaster.c:743:9: error: ‘DetectGlobalDeadLock’ undeclared (first use in this function); did you mean ‘MtmDetectGlobalDeadLock’? 743 | DetectGlobalDeadLock = MtmDetectGlobalDeadLock; | ^~~~~~~~~~~~~~~~~~~~ | MtmDetectGlobalDeadLock src/multimaster.c:743:9: note: each undeclared identifier is reported only once for each function it appears in src/multimaster.c: In function ‘check_config’: src/multimaster.c:854:13: error: ‘max_prepared_xacts’ undeclared (first use in this function); did you mean ‘pg_prepared_xact’? 854 | if (max_prepared_xacts < 1) | ^~~~~~~~~~~~~~~~~~ | pg_prepared_xact src/multimaster.c: In function ‘MtmMesageToString’: src/multimaster.c:2350:62: error: expected ‘)’ before ‘XID_FMT’ 2350 | appendStringInfo(&si, ", \"xid\": \"" XID_FMT "\"", msg->xid); | ~ ^~~~~~~~ | ) src/multimaster.c: In function ‘mtm_hold_backends’: src/multimaster.c:2513:17: error: unknown type name ‘PreparedTransaction’ 2513 | PreparedTransaction pxacts; | ^~~~~~~~~~~~~~~~~~~ src/multimaster.c:2517:30: warning: implicit declaration of function ‘GetPreparedTransactions’ [-Wimplicit-function-declaration] 2517 | n_prepares = GetPreparedTransactions(&pxacts); | ^~~~~~~~~~~~~~~~~~~~~~~ src/multimaster.c:2523:50: error: subscripted value is neither array nor pointer nor vector 2523 | deserialize_xstate(pxacts[i].state_3pc, &xinfo, &gtx_state, PANIC); | ^ src/multimaster.c:2529:31: warning: passing argument 1 of ‘pfree’ makes pointer from integer without a cast [-Wint-conversion] 2529 | pfree(pxacts); | ^~~~~~ | | | int In file included from /usr/include/postgresql/13/server/postgres.h:48, from src/multimaster.c:10: /usr/include/postgresql/13/server/utils/palloc.h:81:25: note: expected ‘void *’ but argument is of type ‘int’ 81 | extern void pfree(void *pointer); | ~~~~~~^~~~~~~ make: *** [<builtin>: src/multimaster.o] Error 1

my system is: Linux ku 5.13.0-30-generic #33-Ubuntu SMP Fri Feb 4 17:03:31 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux