这篇文章主要介绍了MySQL 5.5 NDB集群如何查看日志，具有一定借鉴价值，感兴趣的朋友可以参考下，希望大家阅读完这篇文章之后大有收获，下面让小编带着大家一起了解一下。

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在管理节点查看日志

~> ps -ef|grep mysql
root      3934     1  0 May11 ?        00:08:45 /usr/sbin/ndb_mgmd -f /var/lib/mysql/mysql-cluster/config.ini
apache    4563 24164  0 Sep04 ?        00:00:00 /usr/var/ss7/mctel/bin/dmc_mysqlmap -id 10 -t /tmp/dmc_mysqlmap.log -c /usr/var/ss7/mctel/conf/dmc_mysqlmap.conf -enc 1 -list BLACKBERRY TORCH 9800
ss7       6107 31236  0 10:44 pts/0    00:00:00 grep --color mysql
~> cd /var/lib/mysql/mysql-cluster/
ss7@bep02.mtnng.com - Tue Sep 06 10:44:44
/var/lib/mysql/mysql-cluster> ll
total 5.5M
-rw-r--r-- 1 root root 4.9K May 15  2014 config.ini
-rw-r--r-- 1 root root 671K Sep  6 09:25 ndb_1_cluster.log
-rw-r--r-- 1 root root 977K Feb 10  2015 ndb_1_cluster.log.1
-rw-r--r-- 1 root root 977K Feb 13  2015 ndb_1_cluster.log.2
-rw-r--r-- 1 root root 977K Feb 24  2015 ndb_1_cluster.log.3
-rw-r--r-- 1 root root 977K Apr  6  2015 ndb_1_cluster.log.4
-rw-r--r-- 1 root root 977K Oct  4  2015 ndb_1_cluster.log.5
-rw-r--r-- 1 root root 5.3K Aug  8 06:22 ndb_1_out.log
-rw-r--r-- 1 root root    4 May 11 21:05 ndb_1.pid
ss7@bep02.mtnng.com - Tue Sep 06 10:44:46

/var/lib/mysql/mysql-cluster> cat config.ini | more
..
[NDB_MGMD]
# MySQL Cluster Management node on 'vbep'
NodeId=1
Hostname=vbep-bepdb                     # Alias for the internal eth/bond name server
                                       # Note: this alias must be defined in /etc/hosts
DataDir=/var/lib/mysql/mysql-cluster   # This is a NOT the default location
                                       # It has been customized for MCTEL!!
[NDBD]
--More--
# NDB Storage node on 'db01-sync'
NodeId=11
--More--
HostName=db01-sync                  # Alias for the SYNC eth/bond name server
                                       # Note: this alias must be defined in /etc/hosts
DataDir=/var/lib/mysql/data            # MCTEL check-point and REDO logs directory
[NDBD]
# NDB Storage node on 'db02-sync'
NodeId=12
HostName=db02-sync                  # Alias for the SYNC eth/bond name server
                                       # Note: this alias must be defined in /etc/hosts
DataDir=/var/lib/mysql/data            # MCTEL check-point and REDO logs directory
..

在数据节点查看日志

~/mctel> ps -ef|grep ndb
root      6735     1  0 May11 ?        00:00:00 /usr/sbin/ndbd --defaults-file=/etc/my.cnf
root      6736  6735 51 May11 ?        60-18:02:44 /usr/sbin/ndbd --defaults-file=/etc/my.cnf
ss7      28110 27214  0 10:59 pts/0    00:00:00 grep --color ndb
/var/lib/mysql/database> cd /var/lib/mysql/data
ss7@db01.mtnng.com - Tue Sep 06 11:09:19

/var/lib/mysql/data> ls -trl
total 31M
-rw-r--r-- 1 root root  959K Jan  2  2014 ndb_11_trace.log.1
-rw-r--r-- 1 root root  933K May  6  2014 ndb_11_trace.log.2
-rw-r--r-- 1 root root  997K May 11  2014 ndb_11_trace.log.3
-rw-r--r-- 1 root root 1015K May 16  2014 ndb_11_trace.log.4
-rw-r--r-- 1 root root  940K May 16  2014 ndb_11_trace.log.5
-rw-r--r-- 1 root root  940K May 16  2014 ndb_11_trace.log.6
-rw-r--r-- 1 root root  940K May 16  2014 ndb_11_trace.log.7
-rw-r--r-- 1 root root  939K May 16  2014 ndb_11_trace.log.8
-rw-r--r-- 1 root root  940K May 16  2014 ndb_11_trace.log.9
-rw-r--r-- 1 root root  940K May 16  2014 ndb_11_trace.log.10
-rw-r--r-- 1 root root  940K May 16  2014 ndb_11_trace.log.11
-rw-r--r-- 1 root root  939K May 16  2014 ndb_11_trace.log.12
-rw-r--r-- 1 root root  940K May 16  2014 ndb_11_trace.log.13
-rw-r--r-- 1 root root  940K May 16  2014 ndb_11_trace.log.14
-rw-r--r-- 1 root root     5 May 16  2014 ndb_11.pid-BAK
drwxr-x--- 9 root root  4.0K Feb  9  2015 ndb_11_fs/
-rw-r--r-- 1 root root     2 Feb 24  2015 ndb_11_trace.log.next
-rw-r--r-- 1 root root  1.1M Feb 24  2015 ndb_11_trace.log.15
-rw-r--r-- 1 root root  7.4K Feb 24  2015 ndb_11_error.log
-rw-r--r-- 1 root root     5 May 19 12:05 ndb_11.pid
-rw-r--r-- 1 root root   17M Sep  6 09:18 ndb_11_out.log
ss7@db01.mtnng.com - Tue Sep 06 11:09:23

/var/lib/mysql/data> cat ndb_11.pid
30946ss7@db01.mtnng.com - Tue Sep 06 11:09:37
/var/lib/mysql/data> ps -ef|grep 30946
ss7       6072  2663  0 11:09 pts/0    00:00:00 grep --color 30946
root     30946     1  0 May19 ?        00:03:26 /usr/sbin/ndbd --defaults-file=/etc/my.cnf
root     30947 30946 56 May19 ?        61-15:10:58 /usr/sbin/ndbd --defaults-file=/etc/my.cnf
ss7@db01.mtnng.com - Tue Sep 06 11:09:46
/var/lib/mysql/data> tailf -20 ndb_11_out.log
2016-09-06 08:05:33 [ndbd] INFO     -- timerHandlingLab now: 27683165959 sent: 27683165808 diff: 151
2016-09-06 08:16:25 [ndbd] INFO     -- part: 0 : time to complete: 1
2016-09-06 08:16:28 [ndbd] WARNING  -- Ndb kernel thread 0 is stuck in: Job Handling elapsed=100
2016-09-06 08:16:28 [ndbd] WARNING  -- Time moved forward with 2538 ms
2016-09-06 08:16:28 [ndbd] INFO     -- Watchdog: User time: 407716035  System time: 124144921
2016-09-06 08:16:28 [ndbd] WARNING  -- timerHandlingLab now: 27683820592 sent: 27683818054 diff: 2538
2016-09-06 08:16:28 [ndbd] INFO     -- Watchdog: User time: 407716045  System time: 124144922
2016-09-06 08:16:28 [ndbd] WARNING  -- Watchdog: Warning overslept 2464 ms, expected 100 ms.
2016-09-06 08:17:42 [ndbd] INFO     -- timerHandlingLab now: 27683895142 sent: 27683894986 diff: 156
2016-09-06 08:29:52 [ndbd] INFO     -- timerHandlingLab now: 27684624899 sent: 27684624737 diff: 162
2016-09-06 08:40:00 [ndbd] INFO     -- timerHandlingLab now: 27685233311 sent: 27685233138 diff: 173
2016-09-06 08:46:05 [ndbd] INFO     -- timerHandlingLab now: 27685598094 sent: 27685597940 diff: 154
Backup : Excessive Backup/LCP write rate in last monitoring period - recorded = 12920841 bytes/s, configured = 10485760 bytes/s
Backup : Monitoring period : 1055 millis. Bytes written : 3407872.  Max allowed : 3145728
Backup : Excessive Backup/LCP write rate in last monitoring period - recorded = 12970017 bytes/s, configured = 10485760 bytes/s
Backup : Monitoring period : 1051 millis. Bytes written : 3407872.  Max allowed : 3145728
2016-09-06 09:10:27 [ndbd] INFO     -- timerHandlingLab now: 27687059954 sent: 27687059803 diff: 151
2016-09-06 09:18:34 [ndbd] INFO     -- timerHandlingLab now: 27687547122 sent: 27687546958 diff: 164
Backup : Excessive Backup/LCP write rate in last monitoring period - recorded = 13157806 bytes/s, configured = 10485760 bytes/s
Backup : Monitoring period : 1036 millis. Bytes written : 3407872.  Max allowed : 3145728

在SQL节点查看日志

~/mctel> ps -ef|grep mysql
ss7       3786  2663  0 11:06 pts/0    00:00:00 grep --color mysql
root     16451     1  0 Aug13 ?        00:00:00 /bin/sh /usr/bin/mysqld_safe --defaults-file=/var/lib/mysql/main_my.cnf
mysql    16888 16451 81 Aug13 ?        19-05:35:07 /usr/sbin/mysqld --defaults-file=/var/lib/mysql/main_my.cnf --basedir=/usr --datadir=/var/lib/mysql/database --plugin-dir=/usr/lib64/mysql/plugin --user=mysql --log-error=/var/lib/mysql/database/db01.mtnng.com.err --open-files-limit=50000 --pid-file=/var/lib/mysql/database/db01.mtnng.com.pid --socket=/var/lib/mysql/mysql.sock --port=3306
ss7@db01.mtnng.com - Tue Sep 06 11:06:31

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