Jak zjistit proč server padá?

Jiří Čadek

(12 hodnocení)

30. 1. 2012 12:38:30

Mám VPS u Wedosu a fungovalo cca rok dobře, nicméně teď tak 1x za den až 1x za dva dny spadne.

(SSH se neodezývá, KVM se zapne ale vidim jen prázdnou konzoli, apache nebezi, MYSQL nebezi).

Po restartu vse hned naskoci a jede dál.

V /var/log/apache/errorlog jsou sice errory, ale vetsina jen nejaky favico atd. takze nic zajmavyho.

Podle HTOP je RAM i procesor ok, nevyuziva se vic nez 3/4 ani ve spicce, navic to na tom serveru bezelo rok OK.

Jak zjistim proc to padá?

Díky za odpovědi.

30. 1. 2012 12:38:30

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mjdj

(6 hodnocení)

30. 1. 2012 12:42:33

zkus nainstalovat munin a kouknout se na statistiky grafu. v případě povolit serverinfo a každou minutu ho logovat a po zasekání se kouknout jesli tam nebude něco divného. případně zkontrolovat ps aux | grep apache -c jestli se nezasekávají procesy apache. nebo možná někdo na vps utočí slowflorixem.

30. 1. 2012 12:42:33

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cakes

30. 1. 2012 13:22:49

Koukl bych se i do /var/log/messages ... tam taky může být občas napsáno, proč se ti služby sesypaly. Není ani od věci kouknout na ram a wait příkazem top.

30. 1. 2012 13:22:49

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jBcz

(6 hodnocení)

30. 1. 2012 13:55:27

...

30. 1. 2012 13:55:27

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(20 hodnocení)

30. 1. 2012 16:39:46

Napsal mjdj;752041
nebo možná někdo na vps utočí slowflorixem.

eh... nemel si spis na myslis slowloris?

30. 1. 2012 16:39:46

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Jiří Čadek

(12 hodnocení)

30. 1. 2012 20:54:39

Tak dneska už to celý 3x spadlo, naposled před chvílí. Jank je tam ubuntu 11.04 Server

/var/log/messages neexistuje

/var/log/demsg obsahuje tohle:

Initializing cgroup subsys cpuset Initializing cgroup subsys cpu Linux version 2.6.38-8-server (buildd@allspice) (gcc version 4.5.2 (Ubuntu/Linaro 4.5.2-8ubuntu3) ) #42-Ubuntu SMP Mon Apr 11 03:49:04 UTC 2011 (Ubuntu 2.6.38-8.42-server 2.6.38.2) Command line: BOOT_IMAGE=/boot/vmlinuz-2.6.38-8-server root=UUID=d8eeb0ae-17c7-47aa-9e48-812a88db8909 ro quiet BIOS-provided physical RAM map:  BIOS-e820: 0000000000000000 - 000000000009f400 (usable)  BIOS-e820: 000000000009f400 - 00000000000a0000 (reserved)  BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)  BIOS-e820: 0000000000100000 - 000000001fffd000 (usable)  BIOS-e820: 000000001fffd000 - 0000000020000000 (reserved)  BIOS-e820: 00000000fffbc000 - 0000000100000000 (reserved) NX (Execute Disable) protection: active DMI 2.4 present. DMI: Bochs Bochs, BIOS Bochs 01/01/2007 e820 update range: 0000000000000000 - 0000000000010000 (usable) ==> (reserved) e820 remove range: 00000000000a0000 - 0000000000100000 (usable) No AGP bridge found last_pfn = 0x1fffd max_arch_pfn = 0x400000000 MTRR default type: write-back MTRR fixed ranges enabled:   00000-9FFFF write-back   A0000-BFFFF uncachable   C0000-FFFFF write-protect MTRR variable ranges enabled:   0 base 00E0000000 mask FFE0000000 uncachable   1 disabled   2 disabled   3 disabled   4 disabled   5 disabled   6 disabled   7 disabled PAT not supported by CPU. found SMP MP-table at  f7b90 initial memory mapped : 0 - 20000000 init_memory_mapping: 0000000000000000-000000001fffd000  0000000000 - 001fe00000 page 2M  001fe00000 - 001fffd000 page 4k kernel direct mapping tables up to 1fffd000 @ 1fffa000-1fffd000 RAMDISK: 1e7fa000 - 1f6eb000 ACPI: RSDP 00000000000f7b40 00014 (v00 BOCHS ) ACPI: RSDT 000000001fffde30 00034 (v01 BOCHS  BXPCRSDT 00000001 BXPC 00000001) ACPI: FACP 000000001ffffe70 00074 (v01 BOCHS  BXPCFACP 00000001 BXPC 00000001) ACPI: DSDT 000000001fffdfd0 01E22 (v01   BXPC   BXDSDT 00000001 INTL 20090123) ACPI: FACS 000000001ffffe00 00040 ACPI: SSDT 000000001fffdf90 00037 (v01 BOCHS  BXPCSSDT 00000001 BXPC 00000001) ACPI: APIC 000000001fffdeb0 00072 (v01 BOCHS  BXPCAPIC 00000001 BXPC 00000001) ACPI: HPET 000000001fffde70 00038 (v01 BOCHS  BXPCHPET 00000001 BXPC 00000001) ACPI: Local APIC address 0xfee00000 No NUMA configuration found Faking a node at 0000000000000000-000000001fffd000 Initmem setup node 0 0000000000000000-000000001fffd000   NODE_DATA  kvm-clock: Using msrs 12 and 11 kvm-clock: cpu 0, msr 0:1adfc81, boot clock   PMD ->  on node 0 Zone PFN ranges:   DMA      0x00000010 -> 0x00001000   DMA32    0x00001000 -> 0x00100000   Normal   empty Movable zone start PFN for each node early_node_map active PFN ranges     0: 0x00000010 -> 0x0000009f     0: 0x00000100 -> 0x0001fffd On node 0 totalpages: 130956   DMA zone: 56 pages used for memmap   DMA zone: 6 pages reserved   DMA zone: 3921 pages, LIFO batch:0   DMA32 zone: 1736 pages used for memmap   DMA32 zone: 125237 pages, LIFO batch:31 ACPI: PM-Timer IO Port: 0xb008 ACPI: Local APIC address 0xfee00000 ACPI: LAPIC (acpi_id lapic_id enabled) ACPI: IOAPIC (id address gsi_base) IOAPIC: apic_id 1, version 17, address 0xfec00000, GSI 0-23 ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) ACPI: IRQ0 used by override. ACPI: IRQ2 used by override. ACPI: IRQ5 used by override. ACPI: IRQ9 used by override. ACPI: IRQ10 used by override. ACPI: IRQ11 used by override. Using ACPI (MADT) for SMP configuration information ACPI: HPET id: 0x8086a201 base: 0xfed00000 SMP: Allowing 1 CPUs, 0 hotplug CPUs nr_irqs_gsi: 40 PM: Registered nosave memory: 000000000009f000 - 00000000000a0000 PM: Registered nosave memory: 00000000000a0000 - 00000000000f0000 PM: Registered nosave memory: 00000000000f0000 - 0000000000100000 Allocating PCI resources starting at 20000000 (gap: 20000000:dffbc000) Booting paravirtualized kernel on KVM setup_percpu: NR_CPUS:256 nr_cpumask_bits:256 nr_cpu_ids:1 nr_node_ids:1 PERCPU: Embedded 28 pages/cpu @ffff88001fc00000 s84416 r8192 d22080 u2097152 pcpu-alloc: s84416 r8192 d22080 u2097152 alloc=1*2097152 pcpu-alloc:  0  kvm-clock: cpu 0, msr 0:1fc13c81, primary cpu clock Built 1 zonelists in Node order, mobility grouping on.  Total pages: 129158 Policy zone: DMA32 Kernel command line: BOOT_IMAGE=/boot/vmlinuz-2.6.38-8-server root=UUID=d8eeb0ae-17c7-47aa-9e48-812a88db8909 ro quiet PID hash table entries: 2048 (order: 2, 16384 bytes) Checking aperture... No AGP bridge found Calgary: detecting Calgary via BIOS EBDA area Calgary: Unable to locate Rio Grande table in EBDA - bailing! Memory: 486612k/524276k available (6023k kernel code, 452k absent, 37212k reserved, 5025k data, 880k init) SLUB: Genslabs=15, HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 Hierarchical RCU implementation. 	RCU dyntick-idle grace-period acceleration is enabled. 	RCU-based detection of stalled CPUs is disabled. NR_IRQS:16640 nr_irqs:256 16 Console: colour dummy device 80x25 console  enabled allocated 5242880 bytes of page_cgroup please try 'cgroup_disable=memory' option if you don't want memory cgroups hpet clockevent registered Detected 2133.832 MHz processor. Calibrating delay loop (skipped) preset value.. 4267.66 BogoMIPS (lpj=21338320) pid_max: default: 32768 minimum: 301 Security Framework initialized AppArmor: AppArmor initialized Yama: becoming mindful. Dentry cache hash table entries: 65536 (order: 7, 524288 bytes) Inode-cache hash table entries: 32768 (order: 6, 262144 bytes) Mount-cache hash table entries: 256 Initializing cgroup subsys ns ns_cgroup deprecated: consider using the 'clone_children' flag without the ns_cgroup. Initializing cgroup subsys cpuacct Initializing cgroup subsys memory Initializing cgroup subsys devices Initializing cgroup subsys freezer Initializing cgroup subsys net_cls Initializing cgroup subsys blkio mce: CPU supports 10 MCE banks SMP alternatives: switching to UP code Freeing SMP alternatives: 20k freed ACPI: Core revision 20110112 ftrace: allocating 24611 entries in 97 pages Setting APIC routing to flat ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 CPU0: Intel QEMU Virtual CPU version 0.13.0 stepping 03 Performance Events: unsupported p6 CPU model 2 no PMU driver, software events only. Brought up 1 CPUs Total of 1 processors activated (4267.66 BogoMIPS). devtmpfs: initialized print_constraints: dummy:  Time: 19:51:36  Date: 01/30/12 NET: Registered protocol family 16 ACPI: bus type pci registered PCI: Using configuration type 1 for base access bio: create slab <bio-0> at 0 ACPI: EC: Look up EC in DSDT ACPI: Interpreter enabled ACPI: (supports S0 S3 S4 S5) ACPI: Using IOAPIC for interrupt routing ACPI: No dock devices found. HEST: Table not found. PCI: Ignoring host bridge windows from ACPI; if necessary, use "pci=use_crs" and report a bug ACPI: PCI Root Bridge  (domain 0000 ) pci_root PNP0A03:00: host bridge window  (ignored) pci_root PNP0A03:00: host bridge window  (ignored) pci_root PNP0A03:00: host bridge window  (ignored) pci_root PNP0A03:00: host bridge window  (ignored) pci 0000:00:00.0:  type 0 class 0x000600 pci 0000:00:01.0:  type 0 class 0x000601 pci 0000:00:01.1:  type 0 class 0x000101 pci 0000:00:01.1: reg 20:  pci 0000:00:01.2:  type 0 class 0x000c03 pci 0000:00:01.2: reg 20:  pci 0000:00:01.3:  type 0 class 0x000680 pci 0000:00:01.3: quirk:  claimed by PIIX4 ACPI pci 0000:00:01.3: quirk:  claimed by PIIX4 SMB pci 0000:00:02.0:  type 0 class 0x000300 pci 0000:00:02.0: reg 10:  pci 0000:00:02.0: reg 14:  pci 0000:00:02.0: reg 30:  pci 0000:00:03.0:  type 0 class 0x000200 pci 0000:00:03.0: reg 10:  pci 0000:00:03.0: reg 14:  pci 0000:00:03.0: reg 30:  pci 0000:00:04.0:  type 0 class 0x000500 pci 0000:00:04.0: reg 10:  ACPI: PCI Interrupt Routing Table  ACPI: PCI Interrupt Link  (IRQs 5 *10 11) ACPI: PCI Interrupt Link  (IRQs 5 *10 11) ACPI: PCI Interrupt Link  (IRQs 5 10 *11) ACPI: PCI Interrupt Link  (IRQs 5 10 *11) vgaarb: device added: PCI:0000:00:02.0,decodes=io+mem,owns=io+mem,locks=none vgaarb: loaded SCSI subsystem initialized libata version 3.00 loaded. usbcore: registered new interface driver usbfs usbcore: registered new interface driver hub usbcore: registered new device driver usb wmi: Mapper loaded PCI: Using ACPI for IRQ routing PCI: pci_cache_line_size set to 64 bytes reserve RAM buffer: 000000000009f400 - 000000000009ffff  reserve RAM buffer: 000000001fffd000 - 000000001fffffff  NetLabel: Initializing NetLabel:  domain hash size = 128 NetLabel:  protocols = UNLABELED CIPSOv4 NetLabel:  unlabeled traffic allowed by default HPET: 3 timers in total, 0 timers will be used for per-cpu timer hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0 hpet0: 3 comparators, 64-bit 100.000000 MHz counter Switching to clocksource kvm-clock Switched to NOHz mode on CPU #0 AppArmor: AppArmor Filesystem Enabled pnp: PnP ACPI init ACPI: bus type pnp registered pnp 00:00:  pnp 00:00:  pnp 00:00:  pnp 00:00:  pnp 00:00:  pnp 00:00:  pnp 00:00: Plug and Play ACPI device, IDs PNP0a03 (active) pnp 00:01:  pnp 00:01:  pnp 00:01:  pnp 00:01: Plug and Play ACPI device, IDs PNP0b00 (active) pnp 00:02:  pnp 00:02:  pnp 00:02:  pnp 00:02: Plug and Play ACPI device, IDs PNP0303 (active) pnp 00:03:  pnp 00:03: Plug and Play ACPI device, IDs PNP0f13 (active) pnp 00:04:  pnp 00:04:  pnp 00:04:  pnp 00:04:  pnp 00:04: Plug and Play ACPI device, IDs PNP0700 (active) pnp 00:05:  pnp 00:05: Plug and Play ACPI device, IDs PNP0103 (active) pnp: PnP ACPI: found 6 devices ACPI: ACPI bus type pnp unregistered pci_bus 0000:00: resource 0  pci_bus 0000:00: resource 1  NET: Registered protocol family 2 IP route cache hash table entries: 4096 (order: 3, 32768 bytes) TCP established hash table entries: 16384 (order: 6, 262144 bytes) TCP bind hash table entries: 16384 (order: 6, 262144 bytes) TCP: Hash tables configured (established 16384 bind 16384) TCP reno registered UDP hash table entries: 256 (order: 1, 8192 bytes) UDP-Lite hash table entries: 256 (order: 1, 8192 bytes) NET: Registered protocol family 1 pci 0000:00:00.0: Limiting direct PCI/PCI transfers pci 0000:00:01.0: PIIX3: Enabling Passive Release pci 0000:00:01.0: Activating ISA DMA hang workarounds pci 0000:00:02.0: Boot video device PCI: CLS 0 bytes, default 64 audit: initializing netlink socket (disabled) type=2000 audit(1327953097.430:1): initialized Trying to unpack rootfs image as initramfs... HugeTLB registered 2 MB page size, pre-allocated 0 pages VFS: Disk quotas dquot_6.5.2 Dquot-cache hash table entries: 512 (order 0, 4096 bytes) fuse init (API version 7.16) msgmni has been set to 950 Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253) io scheduler noop registered io scheduler deadline registered (default) io scheduler cfq registered pci_hotplug: PCI Hot Plug PCI Core version: 0.5 pciehp: PCI Express Hot Plug Controller Driver version: 0.4 efifb: probing for efifb efifb: framebuffer at 0xf0000000, mapped to 0xffffc90000180000, using 1408k, total 1408k efifb: mode is 800x600x24, linelength=2400, pages=1 efifb: scrolling: redraw efifb: Truecolor: size=0:8:8:8, shift=0:16:8:0 Console: switching to colour frame buffer device 100x37 fb0: EFI VGA frame buffer device input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 ACPI: Power Button  ACPI: acpi_idle registered with cpuidle ERST: Table is not found! ACPI: PCI Interrupt Link  enabled at IRQ 11 virtio-pci 0000:00:04.0: PCI INT A -> Link -> GSI 11 (level, high) -> IRQ 11 virtio-pci 0000:00:04.0: setting latency timer to 64 Serial: 8250/16550 driver, 32 ports, IRQ sharing enabled serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A Linux agpgart interface v0.103 brd: module loaded loop: module loaded i2c-core: driver  using legacy suspend method i2c-core: driver  using legacy resume method ata_piix 0000:00:01.1: version 2.13 ata_piix 0000:00:01.1: setting latency timer to 64 scsi0 : ata_piix scsi1 : ata_piix ata1: PATA max MWDMA2 cmd 0x1f0 ctl 0x3f6 bmdma 0xc000 irq 14 ata2: PATA max MWDMA2 cmd 0x170 ctl 0x376 bmdma 0xc008 irq 15 Fixed MDIO Bus: probed PPP generic driver version 2.4.2 tun: Universal TUN/TAP device driver, 1.6 tun: (C) 1999-2004 Max Krasnyansky <maxk@qualcomm.com> ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver uhci_hcd: USB Universal Host Controller Interface driver uhci_hcd 0000:00:01.2: PCI INT D -> Link -> GSI 11 (level, high) -> IRQ 11 uhci_hcd 0000:00:01.2: setting latency timer to 64 uhci_hcd 0000:00:01.2: UHCI Host Controller uhci_hcd 0000:00:01.2: new USB bus registered, assigned bus number 1 uhci_hcd 0000:00:01.2: irq 11, io base 0x0000c020 hub 1-0:1.0: USB hub found hub 1-0:1.0: 2 ports detected i8042: PNP: PS/2 Controller  at 0x60,0x64 irq 1,12 serio: i8042 KBD port at 0x60,0x64 irq 1 serio: i8042 AUX port at 0x60,0x64 irq 12 mousedev: PS/2 mouse device common for all mice rtc_cmos 00:01: rtc core: registered rtc_cmos as rtc0 rtc0: alarms up to one day, 114 bytes nvram, hpet irqs device-mapper: uevent: version 1.0.3 device-mapper: ioctl: 4.19.1-ioctl (2011-01-07) initialised: dm-devel@redhat.com input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input1 device-mapper: multipath: version 1.2.0 loaded device-mapper: multipath round-robin: version 1.0.0 loaded cpuidle: using governor ladder cpuidle: using governor menu TCP cubic registered NET: Registered protocol family 10 NET: Registered protocol family 17 Registering the dns_resolver key type PM: Hibernation image not present or could not be loaded. registered taskstats version 1   Magic number: 12:578:901 rtc_cmos 00:01: setting system clock to 2012-01-30 19:51:37 UTC (1327953097) BIOS EDD facility v0.16 2004-Jun-25, 0 devices found EDD information not available. ata1.01: NODEV after polling detection ata1.00: ATA-7: QEMU HARDDISK, 0.13.0, max UDMA/100 ata1.00: 31457280 sectors, multi 16: LBA48  ata1.00: configured for MWDMA2 scsi 0:0:0:0: Direct-Access     ATA      QEMU HARDDISK    0.13 PQ: 0 ANSI: 5 sd 0:0:0:0: Attached scsi generic sg0 type 0 sd 0:0:0:0:  31457280 512-byte logical blocks: (16.1 GB/15.0 GiB) sd 0:0:0:0:  Write Protect is off sd 0:0:0:0:  Mode Sense: 00 3a 00 00 sd 0:0:0:0:  Write cache: disabled, read cache: enabled, doesn't support DPO or FUA  sda: sda1 sda2 < sda5 > sd 0:0:0:0:  Attached SCSI disk ata2.01: NODEV after polling detection ata2.00: ATAPI: QEMU DVD-ROM, 0.13.0, max UDMA/100 ata2.00: configured for MWDMA2 scsi 1:0:0:0: CD-ROM            QEMU     QEMU DVD-ROM     0.13 PQ: 0 ANSI: 5 sr0: scsi3-mmc drive: 4x/4x xa/form2 tray cdrom: Uniform CD-ROM driver Revision: 3.20 sr 1:0:0:0: Attached scsi CD-ROM sr0 sr 1:0:0:0: Attached scsi generic sg1 type 5 Freeing initrd memory: 15300k freed Freeing unused kernel memory: 880k freed Write protecting the kernel read-only data: 10240k Freeing unused kernel memory: 104k freed Freeing unused kernel memory: 1416k freed <30>udev: starting version 167 8139cp: 8139cp: 10/100 PCI Ethernet driver v1.3 (Mar 22, 2004) ACPI: PCI Interrupt Link  enabled at IRQ 10 8139cp 0000:00:03.0: PCI INT A -> Link -> GSI 10 (level, high) -> IRQ 10 8139cp 0000:00:03.0: eth0: RTL-8139C+ at 0xffffc900000ce000, 52:54:00:00:04:58, IRQ 10 8139cp 0000:00:03.0: setting latency timer to 64 FDC 0 is a S82078B 8139too: 8139too Fast Ethernet driver 0.9.28 Refined TSC clocksource calibration: 2133.839 MHz. EXT4-fs (sda1): INFO: recovery required on readonly filesystem EXT4-fs (sda1): write access will be enabled during recovery EXT4-fs (sda1): orphan cleanup on readonly fs EXT4-fs (sda1): ext4_orphan_cleanup: deleting unreferenced inode 721701 EXT4-fs (sda1): ext4_orphan_cleanup: deleting unreferenced inode 720009 EXT4-fs (sda1): ext4_orphan_cleanup: deleting unreferenced inode 719596 EXT4-fs (sda1): ext4_orphan_cleanup: deleting unreferenced inode 480071 EXT4-fs (sda1): ext4_orphan_cleanup: deleting unreferenced inode 408012 EXT4-fs (sda1): ext4_orphan_cleanup: deleting unreferenced inode 722469 EXT4-fs (sda1): 6 orphan inodes deleted EXT4-fs (sda1): recovery complete EXT4-fs (sda1): mounted filesystem with ordered data mode. Opts: (null) <30>udev: starting version 167 lp: driver loaded but no devices found EXT4-fs (sda1): re-mounted. Opts: errors=remount-ro piix4_smbus 0000:00:01.3: SMBus Host Controller at 0xb100, revision 0 type=1400 audit(1327953108.261:2): apparmor="STATUS" operation="profile_load" name="/sbin/dhclient" pid=405 comm="apparmor_parser" type=1400 audit(1327953108.281:3): apparmor="STATUS" operation="profile_load" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=405 comm="apparmor_parser" type=1400 audit(1327953108.281:4): apparmor="STATUS" operation="profile_load" name="/usr/lib/connman/scripts/dhclient-script" pid=405 comm="apparmor_parser" eth0: link up, 100Mbps, full-duplex, lpa 0x05E1 input: ImExPS/2 Generic Explorer Mouse as /devices/platform/i8042/serio1/input/input2 type=1400 audit(1327953108.831:5): apparmor="STATUS" operation="profile_replace" name="/sbin/dhclient" pid=569 comm="apparmor_parser" type=1400 audit(1327953108.841:6): apparmor="STATUS" operation="profile_replace" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=569 comm="apparmor_parser" type=1400 audit(1327953108.841:7): apparmor="STATUS" operation="profile_replace" name="/usr/lib/connman/scripts/dhclient-script" pid=569 comm="apparmor_parser" type=1400 audit(1327953108.851:8): apparmor="STATUS" operation="profile_load" name="/usr/sbin/mysqld" pid=571 comm="apparmor_parser" type=1400 audit(1327953108.861:9): apparmor="STATUS" operation="profile_load" name="/usr/sbin/tcpdump" pid=573 comm="apparmor_parser" type=1400 audit(1327953109.061:10): apparmor="STATUS" operation="profile_replace" name="/usr/sbin/mysqld" pid=666 comm="apparmor_parser"

Jak jsem říkal, HTOP (TOP) ukazuje zabranou cca pulku ramek v dobé kdy to běží, v době kdy je to down se tam nedostanu abych se podíval.

30. 1. 2012 20:54:39

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Samson

31. 1. 2012 19:34:34

Pusťte si jednoduché ukládání vytížení serveru do souboru a až to spadne, tak sem postněte posledních 10 řádků. Asi Vám dochází paměť nebo něco podobného - ve /var/log/syslog by o tom měly být záznamy.

31. 1. 2012 19:34:34

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Jiří Čadek

(12 hodnocení)

5. 2. 2012 13:10:07

Tak jsem nechal ukládat to vytížení do souboru a cca před půlhodinou to zase spadlo, tady je soubor co to vygenerovalo:

http://usbdisk.info/vytizeni

5. 2. 2012 13:10:07

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McFly

(4 hodnocení)

7. 2. 2012 12:14:11

Jaká je tam verze MySQL? :-)

7. 2. 2012 12:14:11

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Samson

7. 2. 2012 15:17:55

Konec souboru se mi nepodařilo celý zrekonstruovat, ale dělo se přibližně toto:

Na serveru se spustilo větší množství procesů, začal swapovat jak o život, server se s tím snažil ukočováním procesů srovnat, ale spouštěly se další, tak došla paměť a pak to celé zmrzlo.

Zkuste se podívat do logu Apache, jestli tam v tu dobu nebyl nějaký podezřelé čilý provoz.

7. 2. 2012 15:17:55

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Jiří Čadek

(12 hodnocení)

7. 2. 2012 17:04:47

Díky za info, zkusím to nějak zanalyzovat ;)

S koncem jsem nic nedělal, zřejmně jak byl server zatížen tak to samo od sebe ukládalo takhle.

7. 2. 2012 17:04:47

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https://webtrh.cz/diskuse/jak-zjistit-proc-server-pada/#reply725091

Samnick

8. 2. 2012 06:20:40

1. http://kb.wedos.com/a/268/vps-nedostatek-pameti-out-of-memory.html

2. pokud na kvm vidis cerno klikni na monitor :D

3. OS ti nahodne kiluje procesy jak nema RAM a v 90% linux vždy kilne ssh, apache a mysql

8. 2. 2012 06:20:40

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Jiří Čadek

(12 hodnocení)

8. 2. 2012 21:41:36

Konečně jsem se dostal do KVM (načetlo se to asi po pul hodině samo od sebe).

Vypadá to, že skutečně došla RAM, nechal jsem si od wedosu navýšit tarif na dvojnásobek, snad to bude stačit.

Přece jen už na tom serveru toho běželo asi moc :D

8. 2. 2012 21:41:36

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Samnick

9. 2. 2012 15:56:40

http://kb.wedos.com/a/268/vps-nedostatek-pameti-out-of-memory.html nic víc, zaplať si o pár modulů na víc

9. 2. 2012 15:56:40

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Samson

9. 2. 2012 19:34:29

Navýšení paměti není úplně ten správný lék, který by odstraňoval příčinu. Určitě to potřebovalo navýšení o 512 MB RAM, ale před vytuhnutím se během dvou minut skokově spustilo cca 100 procesů a zaplnil ten 512 MB swap. To není úplně normální provozní stav a chtělo by to zanalyzovat co se asi tak mohlo stát.

Neznám konkrétní situaci, ale možná by pomohlo omezit počet procesů Apache nebo změnit PHP z modulu na FastCGI nebo PHP-FPM s akcelerátorem, které se snadno omezují.

9. 2. 2012 19:34:29

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