We are experiencing a certain anomaly here on our db server. The
problem had occurred about 3 weeks ago.
We ran diagnostics on the hardware over a 48+hour period with no
failures or indications of problems with hardware. ( at least the
memory.) We rebooted the server, and had not experienced anymore issues
until yesterday, it repeated itself.
The issue is as follows....
We run a series of views, sp's and user defined functions for a period
of time. During application development we run these from command line,
from MySQL query browser and from a series of PHP and Perl Scripts (of
which some are executed from web apps others from cli ).
At some point, the data returned to the user appears corrupted. Bogus
data is returned, whether it be from a query to the actual table or to a
view. Upon rebooting the server the data is returned to normal (ie. the
data tables written to hdd are fine, it appears only the cached results
are fubar).
I can point out also if it matters that all my tables are INNODB....
We are currently developing on a semi-production DB....( i know...hands
need to be slapped )
We are using Apache 2.2 on a similar BSD server. Server specs follow...
************************************************************************
*************
FreeBSD 6.1 Release #0
mysql-server-5.0.45_1
mysql-client-5.0.45_1
************************************************************************
*************
Hardware:
Copyright (c) 1992-2006 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
The Regents of the University of California. All rights
reserved.
FreeBSD 6.1-RELEASE #0: Sun May 7 04:42:56 UTC 2006
[EMAIL PROTECTED]:/usr/obj/usr/src/sys/SMP
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel(R) Xeon(TM) CPU 3.06GHz (3065.81-MHz 686-class CPU)
Origin = "GenuineIntel" Id = 0xf29 Stepping = 9
Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE
,MCA
,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
Features2=0x4400<CNTX-ID,<b14>>
Logical CPUs per core: 2
real memory = 2146959360 (2047 MB)
avail memory = 2095874048 (1998 MB)
ACPI APIC Table: <PTLTD APIC >
FreeBSD/SMP: Multiprocessor System Detected: 4 CPUs cpu0 (BSP): APIC
ID: 0
cpu1 (AP): APIC ID: 1
cpu2 (AP): APIC ID: 6
cpu3 (AP): APIC ID: 7
ioapic0 <Version 2.0> irqs 0-23 on motherboard
ioapic1 <Version 2.0> irqs 24-47 on motherboard
ioapic2 <Version 2.0> irqs 48-71 on motherboard
ioapic3 <Version 2.0> irqs 72-95 on motherboard
ioapic4 <Version 2.0> irqs 96-119 on motherboard
kbd1 at kbdmux0
acpi0: <PTLTD RSDT> on motherboard
acpi0: Power Button (fixed)
Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x1008-0x100b on acpi0
cpu0: <ACPI CPU> on acpi0
cpu1: <ACPI CPU> on acpi0
cpu2: <ACPI CPU> on acpi0
cpu3: <ACPI CPU> on acpi0
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
pci0: <ACPI PCI bus> on pcib0
pci0: <unknown> at device 0.1 (no driver attached)
pcib1: <ACPI PCI-PCI bridge> at device 2.0 on pci0
pci1: <ACPI PCI bus> on pcib1
pci1: <base peripheral, interrupt controller> at device 28.0 (no driver
attached)
pcib2: <ACPI PCI-PCI bridge> at device 29.0 on pci1
pci2: <ACPI PCI bus> on pcib2
pci1: <base peripheral, interrupt controller> at device 30.0 (no driver
attached)
pcib3: <ACPI PCI-PCI bridge> at device 31.0 on pci1
pci3: <ACPI PCI bus> on pcib3
em0: <Intel(R) PRO/1000 Network Connection Version - 3.2.18> port
0x3000-0x303f mem 0xf0200000-0xf021ffff irq 28 at device 2.0 on pci3
em0: Ethernet address: 00:30:48:2f:13:7c
em1: <Intel(R) PRO/1000 Network Connection Version - 3.2.18> port
0x3040-0x307f mem 0xf0220000-0xf023ffff irq 29 at device 2.1 on pci3
em1: Ethernet address: 00:30:48:2f:13:7d
pcib4: <ACPI PCI-PCI bridge> at device 3.0 on pci0
pci4: <ACPI PCI bus> on pcib4
pci4: <base peripheral, interrupt controller> at device 28.0 (no driver
attached)
pcib5: <ACPI PCI-PCI bridge> at device 29.0 on pci4
pci5: <ACPI PCI bus> on pcib5
pci4: <base peripheral, interrupt controller> at device 30.0 (no driver
attached)
pcib6: <ACPI PCI-PCI bridge> at device 31.0 on pci4
pci6: <ACPI PCI bus> on pcib6
aac0: <Adaptec SCSI RAID 2020ZCR> mem
0xf1000000-0xf1ffffff,0xf0400000-0xf05fffff,0xf8000000-0xfbffffff irq 72
at device 1.0 on pci6
aac0: New comm. interface enabled
aac0: Adaptec Raid Controller 2.0.0-1
aacp0: <SCSI Passthrough Bus> on aac0
aacp1: <SCSI Passthrough Bus> on aac0
uhci0: <Intel 82801CA/CAM (ICH3) USB controller USB-A> port
0x2000-0x201f irq 16 at device 29.0 on pci0
uhci0: [GIANT-LOCKED]
usb0: <Intel 82801CA/CAM (ICH3) USB controller USB-A> on uhci0
usb0: USB revision 1.0
uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
uhci1: <Intel 82801CA/CAM (ICH3) USB controller USB-B> port
0x2020-0x203f irq 19 at device 29.1 on pci0
uhci1: [GIANT-LOCKED]
usb1: <Intel 82801CA/CAM (ICH3) USB controller USB-B> on uhci1
usb1: USB revision 1.0
uhub1: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 2 ports with 2 removable, self powered
uhci2: <Intel 82801CA/CAM (ICH3) USB controller USB-C> port
0x2040-0x205f irq 18 at device 29.2 on pci0
uhci2: [GIANT-LOCKED]
usb2: <Intel 82801CA/CAM (ICH3) USB controller USB-C> on uhci2
usb2: USB revision 1.0
uhub2: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub2: 2 ports with 2 removable, self powered
pcib7: <ACPI PCI-PCI bridge> at device 30.0 on pci0
pci7: <ACPI PCI bus> on pcib7
pci7: <display, VGA> at device 1.0 (no driver attached)
isab0: <PCI-ISA bridge> at device 31.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <Intel ICH3 UDMA100 controller> port
0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0x2060-0x206f at device 31.1 on pci0
ata0: <ATA channel 0> on atapci0
ata1: <ATA channel 1> on atapci0
pci0: <serial bus, SMBus> at device 31.3 (no driver attached)
acpi_button0: <Power Button> on acpi0
atkbdc0: <Keyboard controller (i8042)> port 0x60,0x64 irq 1 on acpi0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
psm0: <PS/2 Mouse> irq 12 on atkbdc0
psm0: [GIANT-LOCKED]
psm0: model IntelliMouse Explorer, device ID 4
sio0: <16550A-compatible COM port> port 0x3f8-0x3ff irq 4 flags 0x10 on
acpi0
sio0: type 16550A
sio1: <16550A-compatible COM port> port 0x2f8-0x2ff irq 3 on acpi0
sio1: type 16550A
fdc0: <floppy drive controller> port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on
acpi0
fdc0: [FAST]
fd0: <1440-KB 3.5" drive> on fdc0 drive 0
ppc0: <ECP parallel printer port> port 0x378-0x37f,0x778-0x77f irq 7 drq
3 on acpi0
ppc0: SMC-like chipset (ECP/EPP/PS2/NIBBLE) in COMPATIBLE mode
ppc0: FIFO with 16/16/9 bytes threshold
ppbus0: <Parallel port bus> on ppc0
plip0: <PLIP network interface> on ppbus0
lpt0: <Printer> on ppbus0
lpt0: Interrupt-driven port
ppi0: <Parallel I/O> on ppbus0
pmtimer0 on isa0
orm0: <ISA Option ROMs> at iomem
0xc0000-0xc7fff,0xc8000-0xc8fff,0xc9000-0xcd7ff,0xe0000-0xe3fff on isa0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on
isa0 Timecounters tick every 1.000 msec
acd0: CDROM <CD-224E-N/1.AA> at ata1-master UDMA33
aacd0: <RAID 1 (Mirror)> on aac0
aacd0: 69974MB (143307008 sectors)
ses0 at aacp0 bus 0 target 6 lun 0
ses0: <SUPER GEM318 0> Fixed unknown SCSI-2 device
ses0: 3.300MB/s transfers
ses0: SAF-TE Compliant Device
pass0 at aacp0 bus 0 target 0 lun 0
pass0: <SEAGATE ST373454LC 0003> Fixed unknown SCSI-3 device
pass0: 3.300MB/s transfers
pass1 at aacp0 bus 0 target 1 lun 0
pass1: <SEAGATE ST373454LC 0003> Fixed unknown SCSI-3 device
pass1: 3.300MB/s transfers
SMP: AP CPU #3 Launched!
SMP: AP CPU #1 Launched!
SMP: AP CPU #2 Launched!
em0: link state changed to UP
************************************************************************
******************
my.cnf
************************************************************************
******************
[mysqld]
port = 3306
socket = /tmp/mysql.sock
back_log = 50
#skip-networking
max_connections = 200
max_connect_errors = 10
table_cache = 2048
#external-locking
max_allowed_packet = 16M
binlog_cache_size = 1M
max_heap_table_size = 64M
sort_buffer_size = 8M
join_buffer_size = 8M
thread_cache_size = 8
thread_concurrency = 8
query_cache_size = 64M
query_cache_limit = 2M
ft_min_word_len = 4
#memlock
default_table_type = INNODB
thread_stack = 192K
transaction_isolation = SERIALIZABLE
tmp_table_size = 64M
log-bin=mysql-bin
#log_slave_updates
#log
#log_warnings
log_slow_queries
long_query_time = 2
log_long_format
#tmpdir = /tmp
server-id = 1
#server-id = 2
#master-host = <hostname>
#master-user = <username>
#master-password = <password>
#master-port = <port>
#read_only
key_buffer_size = 32M
read_buffer_size = 2M
read_rnd_buffer_size = 16M
bulk_insert_buffer_size = 64M
myisam_sort_buffer_size = 128M
myisam_max_sort_file_size = 10G
myisam_max_extra_sort_file_size = 10G
myisam_repair_threads = 1
myisam_recover
skip-bdb
innodb_additional_mem_pool_size = 16M
innodb_buffer_pool_size = 1G
innodb_data_file_path = ibdata1:10M:autoextend
#innodb_data_home_dir = /usr/local/mysql/
innodb_file_io_threads = 4
#innodb_force_recovery=1
innodb_thread_concurrency = 16
innodb_flush_log_at_trx_commit = 1
#innodb_fast_shutdown
innodb_log_buffer_size = 8M
innodb_log_file_size = 256M
innodb_log_files_in_group = 3
#innodb_log_group_home_dir
innodb_max_dirty_pages_pct = 90
#innodb_flush_method=O_DSYNC
innodb_lock_wait_timeout = 120
[mysqldump]
quick
max_allowed_packet = 16M
[mysql]
no-auto-rehash
[isamchk]
key_buffer = 512M
sort_buffer_size = 512M
read_buffer = 8M
write_buffer = 8M
[myisamchk]
key_buffer = 512M
sort_buffer_size = 512M
read_buffer = 8M
write_buffer = 8M
[mysqlhotcopy]
interactive-timeout
[mysqld_safe]
open-files-limit = 8192
