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MySQL群集错误：1005：无法创建表“ ndb_schema”（错误号：13）

[英]MySQL Cluster error: 1005: Can't create table 'ndb_schema' (errno: 13)

 原文  2016-08-02 09:56:11  8   1    mysql/ cluster-computing

问题描述

我的MySQL群集测试设置遇到问题：

我有两台运行Ubuntu和Docker的计算机（使用多主机网络），每个节点（ ndb_mgm ， ndbd和mysqld ）都通过Docker运行。 设置如下：

机器1 ：

  • ndb_mgmd
  • ndbd1
  • mysqld1

机器2 ：

  • ndbd2
  • mysqld2

当我在一台机器上启动mysqld时，它连接到管理器并想启动集群，但是它无法创建表。重新启动后，整个NDB会在mysqld实例上登录： 

2016-08-02 09:08:57 135 [Note] NDB: Changed global value of binlog_format from STATEMENT to MIXED
2016-08-02 09:08:58 135 [Note] NDB: NodeID is 4, management server 'ndb_mgmd:1186'
2016-08-02 09:08:58 135 [Note] NDB[0]: NodeID: 4, all storage nodes connected
2016-08-02 09:08:58 135 [Warning] NDB: server id set to zero - changes logged to bin log with server id zero will be logged with another server id by slave mysqlds
2016-08-02 09:08:58 135 [Note] NDB Binlog: Starting...
2016-08-02 09:08:58 135 [Note] NDB Binlog: Started
2016-08-02 09:08:58 135 [Note] NDB Binlog: Setting up
2016-08-02 09:08:58 135 [Note] NDB Binlog: Created schema Ndb object, reference: 0x80040004, name: 'Ndb Binlog schema change monitoring'
2016-08-02 09:08:58 135 [Note] NDB Binlog: Created injector Ndb object, reference: 0x80050004, name: 'Ndb Binlog data change monitoring'
2016-08-02 09:08:58 135 [Note] NDB Binlog: Setup completed
2016-08-02 09:08:58 135 [Note] NDB Binlog: Wait for server start completed
2016-08-02 09:08:58 135 [Note] NDB Util: Starting...
2016-08-02 09:08:58 135 [Note] NDB Util: Wait for server start completed
2016-08-02 09:08:58 135 [Warning] No existing UUID has been found, so we assume that this is the first time that this server has been started. Generating a new UUID: bf07c00a-5890-11e6-83a3-02420a000a1e.
2016-08-02 09:08:58 135 [Note] NDB Index Stat: Starting...
2016-08-02 09:08:58 135 [Note] NDB Index Stat: Wait for server start completed
2016-08-02 09:08:58 135 [Note] Server hostname (bind-address): '*'; port: 3306
2016-08-02 09:08:58 135 [Note] IPv6 is available.
2016-08-02 09:08:58 135 [Note]   - '::' resolves to '::';
2016-08-02 09:08:58 135 [Note] Server socket created on IP: '::'.
2016-08-02 09:08:58 135 [Note] Event Scheduler: Loaded 0 events
2016-08-02 09:08:58 135 [Note] /usr/local/mysql-cluster-gpl-7.4.12-linux-glibc2.5-x86_64/bin/mysqld: ready for connections.
Version: '5.6.31-ndb-7.4.12-cluster-gpl'  socket: '/tmp/mysql.sock'  port: 3306  MySQL Cluster Community Server (GPL)
2016-08-02 09:08:58 135 [Note] NDB Util: Wait for cluster to start
2016-08-02 09:08:58 135 [Note] NDB Util: Started
2016-08-02 09:08:58 135 [Note] NDB Binlog: Check for incidents
2016-08-02 09:08:58 135 [Note] NDB Binlog: Wait for cluster to start
2016-08-02 09:08:58 135 [Note] NDB Index Stat: Wait for cluster to start
2016-08-02 09:08:58 135 [Note] NDB Index Stat: Started
2016-08-02 09:08:58 135 [Note] created index stats Ndb object: reference 0x80070004, name: 'Ndb Index Statistics monitoring'
2016-08-02 09:08:58 135 [Note] NDB: Creating mysql.ndb_schema
2016-08-02 09:08:58 135 [ERROR] NDB: Query 'CREATE TABLE IF NOT EXISTS mysql.ndb_schema ( db VARBINARY(63) NOT NULL,name VARBINARY(63) NOT NULL,slock BINARY(32) NOT NULL,query BLOB NOT NULL,node_id INT UNSIGNED NOT NULL,epoch BIGINT UNSIGNED NOT NULL,id INT UNSIGNED NOT NULL,version INT UNSIGNED NOT NULL,type INT UNSIGNED NOT NULL,PRIMARY KEY USING HASH (db,name) ) ENGINE=NDB CHARACTER SET latin1' failed, error: 1005: Can't create table 'ndb_schema' (errno: 13)

最后一行显示，它无法创建表：

NDB：查询“ CREATE TABLE ...”失败，错误：1005：无法创建表“ ndb_schema”（错误号：13）

如果我签出ndb_mgm配置，似乎每个节点都正确连接： 

ndb_mgm> show
Connected to Management Server at: localhost:1186
Cluster Configuration
---------------------
[ndbd(NDB)] 2 node(s)
id=2    @10.0.10.20  (mysql-5.6.31 ndb-7.4.12, Nodegroup: 0, *)
id=3    @10.0.10.21  (mysql-5.6.31 ndb-7.4.12, Nodegroup: 0)

[ndb_mgmd(MGM)] 1 node(s)
id=1    @10.0.10.10  (mysql-5.6.31 ndb-7.4.12)

[mysqld(API)]   2 node(s)
id=4    @10.0.10.30  (mysql-5.6.31 ndb-7.4.12)
id=5    @10.0.10.31  (mysql-5.6.31 ndb-7.4.12)

ndb_mgmd的配置： 

[ndbd default]
NoOfReplicas=2
DataMemory=80M
IndexMemory=18M

[ndb_mgmd]
hostname=10.0.10.10
datadir=/var/lib/mysql-cluster

[ndbd]
hostname=10.0.10.20
datadir=/usr/local/mysql/data

[ndbd]
hostname=10.0.10.21
datadir=/usr/local/mysql/data

[mysqld]
hostname=10.0.10.30

[mysqld]
hostname=10.0.10.31

每个mysqld的配置如下： 

[mysqld]
ndbcluster
log-error=/var/log/mysql/error.log

在mysqld实例上运行群集的状态不会显示任何错误： 

mysql> SHOW ENGINE NDB STATUS
    -> ;
+------------+-----------------------+--------------------------------------------------------------------------------------------------------------------------------------------------+
| Type       | Name                  | Status                                                                                                                                           |
+------------+-----------------------+--------------------------------------------------------------------------------------------------------------------------------------------------+
| ndbcluster | connection            | cluster_node_id=4, connected_host=ndb_mgmd, connected_port=1186, number_of_data_nodes=2, number_of_ready_data_nodes=2, connect_count=0           |
| ndbcluster | NdbTransaction        | created=2, free=2, sizeof=368                                                                                                                    |
| ndbcluster | NdbOperation          | created=4, free=4, sizeof=944                                                                                                                    |
| ndbcluster | NdbIndexScanOperation | created=0, free=0, sizeof=1152                                                                                                                   |
| ndbcluster | NdbIndexOperation     | created=0, free=0, sizeof=952                                                                                                                    |
| ndbcluster | NdbRecAttr            | created=0, free=0, sizeof=88                                                                                                                     |
| ndbcluster | NdbApiSignal          | created=16, free=16, sizeof=144                                                                                                                  |
| ndbcluster | NdbLabel              | created=0, free=0, sizeof=200                                                                                                                    |
| ndbcluster | NdbBranch             | created=0, free=0, sizeof=32                                                                                                                     |
| ndbcluster | NdbSubroutine         | created=0, free=0, sizeof=72                                                                                                                     |
| ndbcluster | NdbCall               | created=0, free=0, sizeof=24                                                                                                                     |
| ndbcluster | NdbBlob               | created=0, free=0, sizeof=496                                                                                                                    |
| ndbcluster | NdbReceiver           | created=0, free=0, sizeof=128                                                                                                                    |
| ndbcluster | NdbLockHandle         | created=0, free=0, sizeof=48                                                                                                                     |
| ndbcluster | binlog                | latest_epoch=0, latest_trans_epoch=200377404227594, latest_received_binlog_epoch=0, latest_handled_binlog_epoch=0, latest_applied_binlog_epoch=0 |
+------------+-----------------------+--------------------------------------------------------------------------------------------------------------------------------------------------+
15 rows in set (0.00 sec)

如果要在群集上手动创建表，则会收到以下错误： 

mysql> CREATE DATABASE cluster;
Query OK, 1 row affected (0.00 sec)

mysql> CREATE TABLE cluster_test (name VARCHAR(20), value VARCHAR(20)) ENGINE=ndbcluster;
ERROR 1296 (HY000): Got error 4009 'Cluster Failure' from NDBCLUSTER

mysql> show warnings;
+-------+------+--------------------------------------------------+
| Level | Code | Message                                          |
+-------+------+--------------------------------------------------+
| Error | 1296 | Got error 4009 'Cluster Failure' from NDBCLUSTER |
+-------+------+--------------------------------------------------+
1 row in set (0.00 sec)

我不知道从哪里获得详细的错误描述。 如果我对，那么Errno 13通常是某种权限错误，但是每个节点都对文件夹具有正确的权限（它们实际上写了一些文件）。 如果您需要详细的文件夹权限列表，请告诉我。

感谢您的建议！

1 个解决方案

解决方案1
 0 已采纳  2016-10-03 12:04:12

当前问题尚未解决，但是经过一些研究，问题似乎在Docker内部的AUFS存储中。 我在这里描述了这个问题。

我使用较少的图像层来工作。 我在一个RUN指令中组合了许多命令。

以下是对我有用的Dockerfile：

mysql守护进程： 

FROM ubuntu

RUN apt-get update && \
    apt-get install -y libcam-pdf-perl build-essential libaio1 libaio-dev && \
    cpan File::Copy \
         Sys::Hostname \
         Data::Dumper

// .. install mysql cluster files to /usr/local/mysql

WORKDIR /usr/local/mysql

RUN groupadd mysql && \
    useradd -g mysql -s /bin/false mysql && \
    chown -R root . && \
    chown -R mysql data && \
    chgrp -R mysql . && \
    scripts/mysql_install_db --user=mysql

ENV PATH=/usr/local/mysql/bin:$PATH

USER mysql

ndbd ： 

FROM ubuntu

// .. install mysql cluster files to /usr/local/bin

RUN chmod +x /usr/local/bin/ndb* && \
    mkdir -p /usr/local/mysql/data

ndb_mgm ： 

FROM ubuntu

// .. install mysql cluster files to /usr/local/bin

RUN chmod +x /usr/local/bin/ndb_mgm* && \
    mkdir -p /var/lib/mysql-cluster

也许这可以帮助某人！

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