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MDEV-9121: innodb_force_recovery = 6 cannot recover ANY DATA when

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change buffer not empty

Fix: Allow not empty change buffer when innodb_force_recovery >= 5
and output only a warning to error log.

Note: Before using force recovery you should always take backup
of your database.
This commit is contained in:
Jan Lindström 2016-04-27 11:07:43 +03:00
parent 47e0717806
commit 071ae303bd
2 changed files with 30 additions and 10 deletions
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20
storage/innobase/dict/dict0boot.cc
View File

@ -458,12 +458,22 @@ dict_boot(void)
if (err == DB_SUCCESS) { if (err == DB_SUCCESS) {
if (srv_read_only_mode && !ibuf_is_empty()) { if (srv_read_only_mode && !ibuf_is_empty()) {
ib_logf(IB_LOG_LEVEL_ERROR, if (srv_force_recovery < SRV_FORCE_NO_IBUF_MERGE) {
"Change buffer must be empty when --innodb-read-only " ib_logf(IB_LOG_LEVEL_ERROR,
"is set!"); "Change buffer must be empty when --innodb-read-only "
"is set! "
"You can try to recover the database with innodb_force_recovery=5");
err = DB_ERROR; err = DB_ERROR;
} else { } else {
ib_logf(IB_LOG_LEVEL_WARN,
"Change buffer not empty when --innodb-read-only "
"is set! but srv_force_recovery = %d, ignoring.",
srv_force_recovery);
}
}
if (err == DB_SUCCESS) {
/* Load definitions of other indexes on system tables */ /* Load definitions of other indexes on system tables */
dict_load_sys_table(dict_sys->sys_tables); dict_load_sys_table(dict_sys->sys_tables);

20
storage/xtradb/dict/dict0boot.cc
View File

@ -464,12 +464,22 @@ dict_boot(void)
if (err == DB_SUCCESS) { if (err == DB_SUCCESS) {
if (srv_read_only_mode && !ibuf_is_empty()) { if (srv_read_only_mode && !ibuf_is_empty()) {
ib_logf(IB_LOG_LEVEL_ERROR, if (srv_force_recovery < SRV_FORCE_NO_IBUF_MERGE) {
"Change buffer must be empty when --innodb-read-only " ib_logf(IB_LOG_LEVEL_ERROR,
"is set!"); "Change buffer must be empty when --innodb-read-only "
"is set!"
"You can try to recover the database with innodb_force_recovery=5");
err = DB_ERROR; err = DB_ERROR;
} else { } else {
ib_logf(IB_LOG_LEVEL_WARN,
"Change buffer not empty when --innodb-read-only "
"is set! but srv_force_recovery = %d, ignoring.",
srv_force_recovery);
}
}
if (err == DB_SUCCESS) {
/* Load definitions of other indexes on system tables */ /* Load definitions of other indexes on system tables */
dict_load_sys_table(dict_sys->sys_tables); dict_load_sys_table(dict_sys->sys_tables);