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Revert "pg_upgrade: Fix quoting of some arguments in pg_ctl command"
This reverts commit d1c0b61
. The patch has some downsides that require
more attention, as discussed with Noah Misch.
Backpatch-through: 9.5
This commit is contained in:
parent
a6a8616dad
commit
198f0ba8bd
@ -196,10 +196,10 @@ stop_postmaster_atexit(void)
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bool
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start_postmaster(ClusterInfo *cluster, bool report_and_exit_on_error)
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{
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char cmd[MAXPGPATH * 4 + 1000];
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PGconn *conn;
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bool pg_ctl_return = false;
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PQExpBufferData cmd;
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PQExpBufferData opts;
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char socket_string[MAXPGPATH + 200];
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static bool exit_hook_registered = false;
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@ -209,28 +209,22 @@ start_postmaster(ClusterInfo *cluster, bool report_and_exit_on_error)
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exit_hook_registered = true;
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}
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initPQExpBuffer(&cmd);
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socket_string[0] = '\0';
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/* Path to pg_ctl */
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appendPQExpBuffer(&cmd, "\"%s/pg_ctl\" -w ", cluster->bindir);
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#ifdef HAVE_UNIX_SOCKETS
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/* prevent TCP/IP connections, restrict socket access */
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strcat(socket_string,
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" -c listen_addresses='' -c unix_socket_permissions=0700");
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/* log file */
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appendPQExpBufferStr(&cmd, "-l ");
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appendShellString(&cmd, SERVER_LOG_FILE);
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appendPQExpBufferChar(&cmd, ' ');
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/* data folder */
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appendPQExpBufferStr(&cmd, "-D ");
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appendShellString(&cmd, cluster->pgconfig);
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appendPQExpBufferChar(&cmd, ' ');
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/*
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* Build set of options for the instance to start. These are
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* handled with a separate string as they are one argument in
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* the command produced to which shell quoting needs to be applied.
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*/
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initPQExpBuffer(&opts);
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appendPQExpBuffer(&opts, "-p %d ", cluster->port);
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/* Have a sockdir? Tell the postmaster. */
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if (cluster->sockdir)
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snprintf(socket_string + strlen(socket_string),
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sizeof(socket_string) - strlen(socket_string),
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" -c %s='%s'",
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(GET_MAJOR_VERSION(cluster->major_version) < 903) ?
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"unix_socket_directory" : "unix_socket_directories",
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cluster->sockdir);
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#endif
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/*
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* Since PG 9.1, we have used -b to disable autovacuum. For earlier
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@ -241,52 +235,21 @@ start_postmaster(ClusterInfo *cluster, bool report_and_exit_on_error)
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* is no need to set that.) We assume all datfrozenxid and relfrozenxid
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* values are less than a gap of 2000000000 from the current xid counter,
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* so autovacuum will not touch them.
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*/
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if (cluster->controldata.cat_ver >= BINARY_UPGRADE_SERVER_FLAG_CAT_VER)
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appendPQExpBufferStr(&opts, "-b ");
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else
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appendPQExpBufferStr(&opts,
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"-c autovacuum=off "
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"-c autovacuum_freeze_max_age=2000000000 ");
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/*
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*
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* Turn off durability requirements to improve object creation speed, and
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* we only modify the new cluster, so only use it there. If there is a
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* crash, the new cluster has to be recreated anyway. fsync=off is a big
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* win on ext4.
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*/
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if (cluster == &new_cluster)
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appendPQExpBufferStr(&opts,
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"-c synchronous_commit=off "
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"-c fsync=off "
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"-c full_page_writes=off ");
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if (cluster->pgopts)
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appendPQExpBufferStr(&opts, cluster->pgopts);
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#ifdef HAVE_UNIX_SOCKETS
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appendPQExpBuffer(&opts,
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"-c listen_addresses='' -c unix_socket_permissions=0700 ");
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/* Have a sockdir? Tell the postmaster. */
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if (cluster->sockdir)
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{
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appendPQExpBuffer(&opts,
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" -c %s=",
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(GET_MAJOR_VERSION(cluster->major_version) < 903) ?
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"unix_socket_directory" : "unix_socket_directories");
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appendPQExpBufferStr(&opts, cluster->sockdir);
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appendPQExpBufferChar(&opts, ' ');
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}
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#endif
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/* Apply shell quoting to the option string */
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appendPQExpBufferStr(&cmd, "-o ");
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appendShellString(&cmd, opts.data);
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termPQExpBuffer(&opts);
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/* Start mode for pg_ctl */
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appendPQExpBufferStr(&cmd, " start");
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snprintf(cmd, sizeof(cmd),
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"\"%s/pg_ctl\" -w -l \"%s\" -D \"%s\" -o \"-p %d%s%s %s%s\" start",
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cluster->bindir, SERVER_LOG_FILE, cluster->pgconfig, cluster->port,
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(cluster->controldata.cat_ver >=
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BINARY_UPGRADE_SERVER_FLAG_CAT_VER) ? " -b" :
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" -c autovacuum=off -c autovacuum_freeze_max_age=2000000000",
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(cluster == &new_cluster) ?
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" -c synchronous_commit=off -c fsync=off -c full_page_writes=off" : "",
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cluster->pgopts ? cluster->pgopts : "", socket_string);
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/*
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* Don't throw an error right away, let connecting throw the error because
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@ -298,7 +261,7 @@ start_postmaster(ClusterInfo *cluster, bool report_and_exit_on_error)
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SERVER_START_LOG_FILE) != 0) ?
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SERVER_LOG_FILE : NULL,
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report_and_exit_on_error, false,
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"%s", cmd.data);
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"%s", cmd);
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/* Did it fail and we are just testing if the server could be started? */
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if (!pg_ctl_return && !report_and_exit_on_error)
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@ -336,14 +299,13 @@ start_postmaster(ClusterInfo *cluster, bool report_and_exit_on_error)
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if (cluster == &old_cluster)
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pg_fatal("could not connect to source postmaster started with the command:\n"
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"%s\n",
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cmd.data);
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cmd);
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else
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pg_fatal("could not connect to target postmaster started with the command:\n"
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"%s\n",
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cmd.data);
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cmd);
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}
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PQfinish(conn);
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termPQExpBuffer(&cmd);
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/*
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* If pg_ctl failed, and the connection didn't fail, and
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