Description:
When ndb_mgm is started on a Cluster with 2 management (ndb_mgmd) nodes, then ndb_mgm can not get the config and ndb_mgmd crashes. The same setup works for single management (ndb_mgmd) node.
=====================================================================
I start up both management node with following Config.ini
C:\Program Files\MySQL\MySQL Server 7.0\bin>ndb_mgmd --initial
2009-07-13 13:47:21 [MgmSrvr] INFO -- NDB Cluster Management Server. mysql-5
.1.34 ndb-7.0.6
2009-07-13 13:47:22 [MgmSrvr] INFO -- Reading cluster configuration from 'C:
/mysql/mysql-cluster/ndb_mgmd/config.ini'
=====================================================================
When I start the management console I get a unhandled exception error which my Visual Studio Just-In-Time Debugger tries to debug. The message states:
An unhandled win32 exception occurred in ndb_mgmd.exe[3564]
When I debug it in VS2005 i get following message in the immediate window
Unhandled exception at 0x7c911780 in ndb_mgmd.exe: 0xC0000005: Access violation reading location 0x41414131.
and when I break the code in the disassembly I get break at this line
7C911753 call 7C95F13F
7C911758 jmp 7C910A45
7C91175D mov esi,dword ptr [eax+4]
7C911760 sub esi,8
7C911763 mov dword ptr [ebp-38h],esi
7C911766 mov al,byte ptr [esi+5]
7C911769 mov byte ptr [ebp-1Dh],al
7C91176C lea ecx,[esi+8]
7C91176F mov edi,dword ptr [ecx]
7C911771 mov dword ptr [ebp-1B8h],edi
7C911777 mov edx,dword ptr [esi+0Ch]
7C91177A mov dword ptr [ebp-88h],edx
7C911780 mov edx,dword ptr [edx] <========== Break
7C911782 cmp edx,dword ptr [edi+4]
7C911785 jne 7C936AD6
7C91178B cmp edx,ecx
7C91178D jne 7C936AD6
7C911793 mov ecx,dword ptr [ebp-88h]
7C911799 mov dword ptr [ecx],edi
7C91179B mov dword ptr [edi+4],ecx
7C91179E cmp edi,ecx
7C9117A0 jne 7C9117D1
7C9117A2 movzx ecx,word ptr [esi]
7C9117A5 mov edx,ecx
7C9117A7 shr edx,3
7C9117AA mov dword ptr [ebp-1C0h],edx
7C9117B0 and ecx,7
7C9117B3 xor edi,edi
7C9117B5 inc edi
7C9117B6 shl edi,cl
7C9117B8 mov dword ptr [ebp-0B0h],edi
7C9117BE lea edi,[edx+ebx+158h]
7C9117C5 xor ecx,ecx
7C9117C7 mov cl,byte ptr [edi]
7C9117C9 xor ecx,dword ptr [ebp-0B0h]
=================================================================
On the management console I get this out put
C:\Program Files\MySQL\MySQL Server 7.0\bin>ndb_mgm
-- NDB Cluster -- Management Client --
ndb_mgm> show
Connected to Management Server at: localhost:1186
Failed to unpack buffer
Could not get configuration
* 0: No error
* Executing: ndb_mgm_get_configuration
ndb_mgm> show
Connected to Management Server at: localhost:1186
Could not get configuration
* 145: Error
* Time out talking to management server
ndb_mgm>
How to repeat:
Config.ini (for Both MGMD)
==========================
[TCP DEFAULT]
SendBufferMemory=2M
ReceiveBufferMemory=2M
[NDB_MGMD DEFAULT]
PortNumber=1186
Datadir=C:/mysql/mysql-cluster/ndb_mgmd/
[NDB_MGMD]
Id=1
Hostname=MGMD1
ArbitrationRank=1
[NDB_MGMD]
Id=2
Hostname=MGMD2
ArbitrationRank=1
[NDBD DEFAULT]
NoOfReplicas=2
Datadir=C:/mysql/mysql-cluster/ndbd/
DataMemory=1280M
IndexMemory=150M
LockPagesInMainMemory=0
MaxNoOfConcurrentOperations=100000
StringMemory=25
#MaxNoOfTables=4096
MaxNoOfOrderedIndexes=10000
MaxNoOfAttributes=10000
#MaxNoOfUniqueHashIndexes=512
DiskCheckpointSpeedInRestart=100M
FragmentLogFileSize=256M
InitFragmentLogFiles=FULL
NoOfFragmentLogFiles=6
RedoBuffer=32M
TimeBetweenLocalCheckpoints=20
TimeBetweenGlobalCheckpoints=1000
TimeBetweenEpochs=100
MemReportFrequency=30
BackupReportFrequency=10
### Params for setting logging
LogLevelStartup=15
LogLevelShutdown=15
LogLevelCheckpoint=8
LogLevelNodeRestart=15
### Params for increasing Disk throughput
BackupMaxWriteSize=1M
BackupDataBufferSize=16M
BackupLogBufferSize=4M
BackupMemory=20M
#Reports indicates that odirect=1 can cause io errors (os err code 5) on some systems. You must test.
#ODirect=1
### Watchdog
TimeBetweenWatchdogCheckInitial=30000
### TransactionInactiveTimeout - should be enabled in Production
#TransactionInactiveTimeout=30000
### CGE 6.3 - REALTIME EXTENSIONS
#RealTimeScheduler=1
#SchedulerExecutionTimer=80
#SchedulerSpinTimer=40
### DISK DATA
#SharedGlobalMemory=384M
#read my blog how to set this:
#DiskPageBufferMemory=3072M
BatchSizePerLocalScan=512
[NDBD]
Id=3
Hostname=ndb204
### CGE 6.3 - REALTIME EXTENSIONS
### PLEASE NOTE THAT THE BELOW ONLY WORKS IF YOU HAVE >1 CORE.
### YOU SHOULD CHECK cat /proc/interrupts AND CHOOSE THE CPUs
### THAT GENERATE THE LEAST INTERRUPS. TYPICALLY THE CPU HANDLING
### THE INTERRUPTS FOR THE COMMUNICATION INTERFACE USED FOR THE DATA NODE SHOULD
### BE AVOIDED FOR THE LockExecuteThreadToCPU, BUT YOU CAN
### LockMaintThreadsToCPU TO THAT CPU SINCE IT DOES NOT AFFECT THE
### REALTIME ASPECTS (THIS IS TRUE FOR UP TO TWO DATA NODES ONE ONE COMPUTER.
#LockExecuteThreadToCPU=X
#LockMaintThreadsToCPU=Y
[NDBD]
Id=4
Hostname=ndb203
### CGE 6.3 - REALTIME EXTENSIONS
### PLEASE NOTE THAT THE BELOW ONLY WORKS IF YOU HAVE >1 CORE.
### YOU SHOULD CHECK cat /proc/interrupts AND CHOOSE THE CPUs
### THAT GENERATE THE LEAST INTERRUPS. TYPICALLY THE CPU HANDLING
### THE INTERRUPTS FOR THE COMMUNICATION INTERFACE USED FOR THE DATA NODE SHOULD
### BE AVOIDED FOR THE LockExecuteThreadToCPU, BUT YOU CAN
### LockMaintThreadsToCPU TO THAT CPU SINCE IT DOES NOT AFFECT THE
### REALTIME ASPECTS (THIS IS TRUE FOR UP TO TWO DATA NODES ONE ONE COMPUTER.
#LockExecuteThreadToCPU=X
#LockMaintThreadsToCPU=Y
[NDBD]
Id=5
Hostname=ndb202
### CGE 6.3 - REALTIME EXTENSIONS
### PLEASE NOTE THAT THE BELOW ONLY WORKS IF YOU HAVE >1 CORE.
### YOU SHOULD CHECK cat /proc/interrupts AND CHOOSE THE CPUs
### THAT GENERATE THE LEAST INTERRUPS. TYPICALLY THE CPU HANDLING
### THE INTERRUPTS FOR THE COMMUNICATION INTERFACE USED FOR THE DATA NODE SHOULD
### BE AVOIDED FOR THE LockExecuteThreadToCPU, BUT YOU CAN
### LockMaintThreadsToCPU TO THAT CPU SINCE IT DOES NOT AFFECT THE
### REALTIME ASPECTS (THIS IS TRUE FOR UP TO TWO DATA NODES ONE ONE COMPUTER.
#LockExecuteThreadToCPU=X
#LockMaintThreadsToCPU=Y
[NDBD]
Id=6
Hostname=ndb201
### CGE 6.3 - REALTIME EXTENSIONS
### PLEASE NOTE THAT THE BELOW ONLY WORKS IF YOU HAVE >1 CORE.
### YOU SHOULD CHECK cat /proc/interrupts AND CHOOSE THE CPUs
### THAT GENERATE THE LEAST INTERRUPS. TYPICALLY THE CPU HANDLING
### THE INTERRUPTS FOR THE COMMUNICATION INTERFACE USED FOR THE DATA NODE SHOULD
### BE AVOIDED FOR THE LockExecuteThreadToCPU, BUT YOU CAN
### LockMaintThreadsToCPU TO THAT CPU SINCE IT DOES NOT AFFECT THE
### REALTIME ASPECTS (THIS IS TRUE FOR UP TO TWO DATA NODES ONE ONE COMPUTER.
#LockExecuteThreadToCPU=X
#LockMaintThreadsToCPU=Y
## BELOW ARE TWO (INACTIVE) SLOTS FOR DATA NODES TO ALLOW FOR GROWTH
#[NDBD]
#Id=7
#Hostname=
### CGE 6.3 - REALTIME EXTENSIONS
### PLEASE NOTE THAT THE BELOW ONLY WORKS IF YOU HAVE >1 CORE.
### YOU SHOULD CHECK cat /proc/interrupts AND CHOOSE THE CPUs
### THAT GENERATE THE LEAST INTERRUPS. TYPICALLY THE CPU HANDLING
### THE INTERRUPTS FOR THE COMMUNICATION INTERFACE USED FOR THE DATA NODE SHOULD
### BE AVOIDED FOR THE LockExecuteThreadToCPU, BUT YOU CAN
### LockMaintThreadsToCPU TO THAT CPU SINCE IT DOES NOT AFFECT THE
### REALTIME ASPECTS (THIS IS TRUE FOR UP TO TWO DATA NODES ONE ONE COMPUTER.
#LockExecuteThreadToCPU=X
#LockMaintThreadsToCPU=Y
#[NDBD]
#Id=8
#Hostname=
### CGE 6.3 - REALTIME EXTENSIONS
### PLEASE NOTE THAT THE BELOW ONLY WORKS IF YOU HAVE >1 CORE.
### YOU SHOULD CHECK cat /proc/interrupts AND CHOOSE THE CPUs
### THAT GENERATE THE LEAST INTERRUPS. TYPICALLY THE CPU HANDLING
### THE INTERRUPTS FOR THE COMMUNICATION INTERFACE USED FOR THE DATA NODE SHOULD
### BE AVOIDED FOR THE LockExecuteThreadToCPU, BUT YOU CAN
### LockMaintThreadsToCPU TO THAT CPU SINCE IT DOES NOT AFFECT THE
### REALTIME ASPECTS (THIS IS TRUE FOR UP TO TWO DATA NODES ONE ONE COMPUTER.
#LockExecuteThreadToCPU=X
#LockMaintThreadsToCPU=Y
[MYSQLD DEFAULT]
BatchSize=512
#BatchByteSize=2048K
#MaxScanBatchSize=2048K
[MYSQLD]
Id=9
#Hostname=api1
[MYSQLD]
Id=10
#Hostname=api1
[MYSQLD]
Id=11
#Hostname=api1
[MYSQLD]
Id=12
#Hostname=api2
[MYSQLD]
Id=13
#Hostname=api2
[MYSQLD]
Id=14
#Hostname=api2
[MYSQLD]
Id=15
#Hostname=api2
[MYSQLD]
Id=16
#Hostname=api2
=====================================================================
my.ini
==========
# All files in this package is subject to the GPL v2 license
# More information is in the COPYING file in the top directory of this package.
# Copyright (C) 2009 severalnines.com
[ndb_mgmd]
config-file="C:/mysql/mysql-cluster/ndb_mgmd/config.ini"
configdir="C:/mysql/mysql-cluster/ndb_mgmd/"
[MYSQLD]
user=mysql
basedir="C:/Program Files/MySQL/MySQL Server 7.0/"
datadir=C:/mysql/mysql-cluster/data/
#socket=/data/mysql//mysql.sock
pid-file=mysqld.pid
port=3306
ndb-cluster-connection-pool=4
ndbcluster
ndb-connectstring="MGMD1:1186;MGMD2:1186"
ndb-force-send=1
ndb-use-exact-count=0
ndb-extra-logging=1
ndb-autoincrement-prefetch-sz=256
engine-condition-pushdown=1
#REPLICATION SPECIFIC - GENERAL
#server-id must be unique across all mysql servers participating in replication.
server-id=254
#REPLICATION SPECIFIC - MASTER
log-bin=binlog
#OTHER THINGS, BUFFERS ETC
key_buffer = 256M
max_allowed_packet = 16M
sort_buffer_size = 512K
read_buffer_size = 256K
read_rnd_buffer_size = 512K
thread_cache_size=1024
myisam_sort_buffer_size = 8M
init_connect='set autocommit=0'
memlock
sysdate_is_now
max-connections=200
thread-cache-size=64
query-cache-type = 0
query-cache-size = 0
table-open_cache=1024
table-cache=512
lower-case-table-names=0
[MYSQL]
#socket=/data/mysql//mysql.sock
