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MySQL集羣錯誤：1005年：無法創建表「ndb_schema」（錯誤：13）

2016-08-02 62 views
0

我和我的MySQL Cluster測試，安裝的煩惱：MySQL集羣錯誤：1005年：無法創建表「ndb_schema」（錯誤：13）

我運行Ubuntu和碼頭工人兩臺機器（使用多主機網絡）和每個節點（ndb_mgm,ndbd和mysqld）通過Docker運行。設置如下：

機1：

  • ndb_mgmd
  • ndbd1
  • mysqld1

機2：

  • ndbd2
  • mysqld2

當我開始mysqld在一臺機器，它連接到經理，並希望發起集羣，但它無法創建表，整個NDB日誌上mysqld實例重新開始後：

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)

最後一行顯示，其無法創建一個表：

NDB: Query 'CREATE TABLE ...' failed, error: 1005: Can't create table 'ndb_schema' (errno: 13)

如果我檢出ndb_mgm配置，每個節點似乎正確連接：

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)

爲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

每個mysqld被配置如下：

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

運行狀態集羣上的一個mysqld實例顯示沒有錯誤：

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)

如果我要在集羣上手動創建一個表，我得到以下錯誤：

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)

我不知道從哪裏得到詳細的錯誤描述。如果我是對的Errno 13通常是某種權限錯誤，但每個節點都有權限訪問這些文件夾（他們實際上寫了一些文件）。如果您需要詳細的文件夾權限列表，請告訴我。

感謝您的建議！

來源

2016-08-02 manixx

回答

0

目前這個問題還沒有解決，但經過一番研究後，這個問題似乎是Docker內部的AUFS存儲。 I described here the issue.

我得到它在圖像內使用較少的圖層工作。我在一個RUN指令中組合了很多命令。

這裏是爲我工作的Dockerfiles：

MySQL守護進程：

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

也許這可以幫助別人！

來源

2016-10-03 12:04:12 manixx

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