maria-discuss team mailing list archive

[Niklaas Baudet von Gersdorff <stdin@xxxxxxxxxx>]

Guillaume Lefranc [2016-06-02 08:05 +0000] :

> in MariaDB 10.1, Galera replicator needs to be explicitely enabled. Try
> adding this to your configuration file:
> 
> wsrep_on=ON

Great, thanks for mentioning that! Unfortunately though, I end up with
an error and MariaDB fails to start. I have the following configuration:

--------------------8<--------------------

[mysqld]
datadir=/var/db/mysql
socket=/tmp/mysql.sock
user=mysql
binlog_format=ROW
bind-address=0.0.0.0
default_storage_engine=innodb
innodb_autoinc_lock_mode=2
innodb_flush_log_at_trx_commit=0
innodb_buffer_pool_size=122M
wsrep_on=ON
wsrep_provider=/usr/local/lib/libgalera_smm.so
wsrep_provider_options="gcache.size=300M; gcache.page_size=300M"
wsrep_cluster_name="klaas_cluster"
wsrep_cluster_address="gcomm://"
#wsrep_cluster_address="gcomm://10.1.7.1,10.2.7.1,10.3.7.1"
wsrep_sst_method=rsync
wsrep_node_name=box-hlm-01
wsrep_node_address="10.1.7.1"

[mysql_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid

-------------------->8--------------------

As you can see, I moved the last wsrep_* options from [mysql] to
[mysqld]. The documentation first mentions to put them under [mysqld]
and then under [mysql] in the subsequent question. Anyway, 
after I added wsrep_on=ON I got an error messages stating that the node
address could not be determined. So I thought that wsrep_node_address
(and the other options) actually belong to [mysqld] (and not [mysql]).

Nonetheless, I get the following error:

--------------------8<--------------------

160602 14:32:19 mysqld_safe Starting mysqld daemon with databases from /var/db/mysql
160602 14:32:19 mysqld_safe WSREP: Running position recovery with --log_error='/var/db/mysql/wsrep_recovery.KnBaDz' --pid-file='/var/db/mysql/mariadb1.box-hlm-01.klaas-recover.pid'
2016-06-02 14:32:19 34426872832 [Note] /usr/local/libexec/mysqld (mysqld 10.1.13-MariaDB) starting as process 27488 ...
160602 14:32:21 mysqld_safe WSREP: Recovered position 00000000-0000-0000-0000-000000000000:-1
2016-06-02 14:32:22 34426872832 [Note] /usr/local/libexec/mysqld (mysqld 10.1.13-MariaDB) starting as process 27501 ...
2016-06-02 14:32:22 34426872832 [Note] WSREP: Read nil XID from storage engines, skipping position init
2016-06-02 14:32:22 34426872832 [Note] WSREP: wsrep_load(): loading provider library '/usr/local/lib/libgalera_smm.so'
2016-06-02 14:32:22 34426872832 [Note] WSREP: wsrep_load(): Galera 3.5(rXXXX) by Codership Oy <info@xxxxxxxxxxxxx> loaded successfully.
2016-06-02 14:32:22 34426872832 [Note] WSREP: CRC-32C: using hardware acceleration.
2016-06-02 14:32:22 34426872832 [Note] WSREP: Found saved state: 00000000-0000-0000-0000-000000000000:-1
2016-06-02 14:32:22 34426872832 [Note] WSREP: Passing config to GCS: base_host = 10.1.7.1; base_port = 4567; cert.log_conflicts = no; debug = no; evs.inactive_check_period = PT0.5S; evs.inactive_timeout = PT15S; evs.join_retrans_period = PT1S; evs.max_install_timeouts = 1; evs.send_window = 4; evs.stats_report_period = PT1M; evs.suspect_timeout = PT5S; evs.user_send_window = 2; evs.view_forget_timeout = PT24H; gcache.dir = /var/db/mysql/; gcache.keep_pages_size = 0; gcache.mem_size = 0; gcache.name = /var/db/mysql//galera.cache; gcache.page_size = 300M; gcache.size = 300M; gcs.fc_debug = 0; gcs.fc_factor = 1.0; gcs.fc_limit = 16; gcs.fc_master_slave = no; gcs.max_packet_size = 64500; gcs.max_throttle = 0.25; gcs.recv_q_hard_limit = 9223372036854775807; gcs.recv_q_soft_limit = 0.25; gcs.sync_donor = no; gmcast.segment = 0; gmcast.version = 0; pc.announce_timeout = PT3S; pc.checksum = false; pc.ignore_quorum = false; pc.ignore_sb = false; pc.npvo = false; pc.version = 0; pc.wait_prim = true; pc.wait_prim_timeout = P30S; pc.weight = 1; protonet.back
2016-06-02 14:32:22 34426877952 [Note] WSREP: Service thread queue flushed.
2016-06-02 14:32:22 34426872832 [Note] WSREP: Assign initial position for certification: -1, protocol version: -1
2016-06-02 14:32:22 34426872832 [Note] WSREP: wsrep_sst_grab()
2016-06-02 14:32:22 34426872832 [Note] WSREP: Start replication
2016-06-02 14:32:22 34426872832 [Note] WSREP: Setting initial position to 00000000-0000-0000-0000-000000000000:-1
2016-06-02 14:32:22 34426872832 [Note] WSREP: protonet asio version 0
2016-06-02 14:32:22 34426872832 [Note] WSREP: Using CRC-32C (optimized) for message checksums.
2016-06-02 14:32:22 34426872832 [Note] WSREP: backend: asio
160602 14:32:22 [ERROR] mysqld got signal 6 ;
This could be because you hit a bug. It is also possible that this binary
or one of the libraries it was linked against is corrupt, improperly built,
or misconfigured. This error can also be caused by malfunctioning hardware.

To report this bug, see https://mariadb.com/kb/en/reporting-bugs

We will try our best to scrape up some info that will hopefully help
diagnose the problem, but since we have already crashed, 
something is definitely wrong and this may fail.

Server version: 10.1.13-MariaDB
key_buffer_size=0
read_buffer_size=131072
max_used_connections=0
max_threads=153
thread_count=0
It is possible that mysqld could use up to 
key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 335983 K  bytes of memory
Hope that's ok; if not, decrease some variables in the equation.

Thread pointer: 0x0x0
Attempting backtrace. You can use the following information to find out
where mysqld died. If you see no messages after this, something went
terribly wrong...
stack_bottom = 0x0 thread_stack 0x48400
0xafa3de <my_print_stacktrace+0x2e> at /usr/local/libexec/mysqld
0x72004e <handle_fatal_signal+0x22e> at /usr/local/libexec/mysqld
0x8031e9b4a <pthread_sigmask+0x51a> at /lib/libthr.so.3
0x8031e922c <pthread_getspecific+0xe1c> at /lib/libthr.so.3
The manual page at http://dev.mysql.com/doc/mysql/en/crashing.html contains
information that should help you find out what is causing the crash.
160602 14:32:22 mysqld_safe mysqld from pid file /var/db/mysql/mariadb1.box-hlm-01.klaas.pid ended

-------------------->8--------------------

Is there an error in the configuration?

Any help is very much appreciated.

    Niklaas