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MDEV-21954 mysqld got signal 11 Fatal signal 6 while backtracing on parallel show global status

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protect global toku_global_status_rows with a mutex
This commit is contained in:
Sergei Golubchik 2020-09-18 15:34:24 +02:00
parent 54c521ca33
commit c4f8ccc0f5
1 changed files with 3 additions and 0 deletions
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3
storage/tokudb/hatoku_hton.cc
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@ -26,6 +26,7 @@ Copyright (c) 2006, 2015, Percona and/or its affiliates. All rights reserved.
#include "hatoku_hton.h"
#include "PerconaFT/src/ydb.h"
#include <mutex>
#define TOKU_METADB_NAME "tokudb_meta"
@ -239,6 +240,7 @@ tokudb::thread::rwlock_t tokudb_hton_initialized_lock;
static SHOW_VAR *toku_global_status_variables = NULL;
static uint64_t toku_global_status_max_rows;
static TOKU_ENGINE_STATUS_ROW_S* toku_global_status_rows = NULL;
static std::mutex toku_global_status_rows_mutex;
static void handle_ydb_error(int error) {
switch (error) {
@ -1902,6 +1904,7 @@ static int show_tokudb_vars(TOKUDB_UNUSED(THD* thd),
const int panic_string_len = 1024;
char panic_string[panic_string_len] = {'\0'};
fs_redzone_state redzone_state;
const std::lock_guard<std::mutex> lock(toku_global_status_rows_mutex);
uint64_t num_rows;
error = db_env->get_engine_status(