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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 18:07:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 18:07:14 +0000 |
commit | a175314c3e5827eb193872241446f2f8f5c9d33c (patch) | |
tree | cd3d60ca99ae00829c52a6ca79150a5b6e62528b /storage/tokudb/tools/tokudb_delete_frm_from_status.cc | |
parent | Initial commit. (diff) | |
download | mariadb-10.5-a175314c3e5827eb193872241446f2f8f5c9d33c.tar.xz mariadb-10.5-a175314c3e5827eb193872241446f2f8f5c9d33c.zip |
Adding upstream version 1:10.5.12.upstream/1%10.5.12upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | storage/tokudb/tools/tokudb_delete_frm_from_status.cc | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/storage/tokudb/tools/tokudb_delete_frm_from_status.cc b/storage/tokudb/tools/tokudb_delete_frm_from_status.cc new file mode 100644 index 00000000..53851246 --- /dev/null +++ b/storage/tokudb/tools/tokudb_delete_frm_from_status.cc @@ -0,0 +1,132 @@ +#ident "$Id$" +/*====== +This file is part of TokuDB + + +Copyright (c) 2006, 2015, Percona and/or its affiliates. All rights reserved. + + TokuDBis is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License, version 2, + as published by the Free Software Foundation. + + TokuDB is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with TokuDB. If not, see <http://www.gnu.org/licenses/>. + +======= */ + +#ident "Copyright (c) 2006, 2015, Percona and/or its affiliates. All rights reserved." + +// This program finds all of the tokudb status dictionary files and deletes the FRM from them. +// +// Requirements: +// The directory containing the tokudb environment is passed as a parameter. +// Needs the log*.tokulog* crash recovery log files. +// Needs a clean shutdown in the recovery log. +// Needs the tokudb.* metadata files. +// +// Effects: +// Deletes the FRM row from all of the tokudb status dictionaries. +// Creates a new crash recovery log. + + +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <sys/stat.h> +#include <string.h> +#include <assert.h> +#include <db.h> + +static int delete_frm_from_status(DB_ENV *env, DB_TXN *txn, const char *dname) { + int r; + DB *db = NULL; + r = db_create(&db, env, 0); + assert(r == 0); + + r = db->open(db, txn, dname, NULL, DB_BTREE, 0, 0); + assert(r == 0); + + uint64_t k = 5; + DBT delkey = { .data = &k, .size = sizeof k }; + r = db->del(db, txn, &delkey, 0); + assert(r == 0); + + r = db->close(db, 0); + assert(r == 0); + + return 0; +} + +static int find_status_and_delete_frm(DB_ENV *env, DB_TXN *txn) { + int r; + DBC *c = NULL; + r = env->get_cursor_for_directory(env, txn, &c); + assert(r == 0); + + DBT key = { }; key.flags = DB_DBT_REALLOC; + DBT val = { }; val.flags = DB_DBT_REALLOC; + while (1) { + r = c->c_get(c, &key, &val, DB_NEXT); + if (r == DB_NOTFOUND) + break; + const char *dname = (const char *) key.data; + const char *iname = (const char *) val.data; + fprintf(stderr, "dname=%s iname=%s\n", dname, iname); + assert(r == 0); + + if (strstr(iname, "_status_")) { + fprintf(stderr, "delete frm from %s\n", iname); + if (1) { + r = delete_frm_from_status(env, txn, dname); + assert(r == 0); + } + } + } + free(key.data); + free(val.data); + + r = c->c_close(c); + assert(r == 0); + return 0; +} + +int main(int argc, char *argv[]) { + if (argc != 2) { + fprintf(stderr, "datadir name missing\n"); + return 1; + } + char *datadir = argv[1]; + + // open the env + int r; + DB_ENV *env = NULL; + r = db_env_create(&env, 0); + assert(r == 0); + + env->set_errfile(env, stderr); + r = env->open(env, datadir, DB_INIT_LOCK+DB_INIT_MPOOL+DB_INIT_TXN+DB_INIT_LOG + DB_PRIVATE+DB_CREATE, S_IRWXU+S_IRWXG+S_IRWXO); + // open will fail if the recovery log was not cleanly shutdown + assert(r == 0); + + // use a single txn to cover all of the status file changes + DB_TXN *txn = NULL; + r = env->txn_begin(env, NULL, &txn, 0); + assert(r == 0); + + r = find_status_and_delete_frm(env, txn); + assert(r == 0); + + r = txn->commit(txn, 0); + assert(r == 0); + + // close the env + r = env->close(env, 0); + assert(r == 0); + + return 0; +} |