ECS: memória swap total do xDoctor RAP137 inconsistente no rack do ECS

Summary: A memória de troca total é inconsistente no rack ECS.

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Symptoms

xDoctor informa:

------------------------------------------------------------
WARNING - Total swap memory inconsistent across the ECS rack
------------------------------------------------------------
Node      = Nodes
Extra     = {'Nodes': {'16383': ['169.254.1.8', '169.254.1.7', '169.254.1.6', '169.254.1.4', '169.254.1.3', '169.254.1.2', '169.254.1.1'], '8191': ['169.254.1.5']}}
Timestamp = 2022-12-01_145111
PSNT      = CKM00190800120 @ 4.8-87.0

Cause

Após uma reinicialização do nó, a configuração de TROCA não foi salva no /etc/fstab.
A partição SWAP nativa não foi carregada na inicialização.
O nó teve a imagem criada novamente e o SWAP não foi aplicado ao nó.
O SWAP nunca foi aplicado a um cluster que tivesse uma expansão.

Confirme se há consistência de SWAP em todos os nós.

Nota: Vemos que a saída abaixo mostra o Rack 1, nó 1 com apenas 8 G no SWAP não correspondendo ao cluster.

Comando:

# doit free -m | grep Swap

Exemplo:

admin@ecsnode1:~> svc_exec 'free -m | grep Swap'
svc_exec v1.0.4 (svc_tools v2.8.0)                 Started 2022-11-30 22:15:56

Output from node: r1n1                                retval: 0
Swap:        8191         552         23

Output from node: r1n2                                retval: 0
Swap:        8191          2        8191

Output from node: r1n3                                retval: 0
Swap:        16383          4      16379

Output from node: r1n4                                retval: 0
Swap:        16383          0      16383

Output from node: r1n5                                retval: 0
Swap:        16383          0      16383

Output from node: r1n6                                retval: 0
Swap:        16383          3      16380

Output from node: r1n7                                retval: 0
Swap:        16383          4      16379

Output from node: r1n8                                retval: 0
Swap:        16383        699      15684

Confirme se /etc/fstab está atualizado para usar 8 GB adicionais de SWAP no nó e se existe a entrada da partição SWAP nativa.

Comando:

# svc_exec 'grep swap /etc/fstab'

Exemplo:

admin@ecsnode1:~> svc_exec 'grep swap /etc/fstab'
svc_exec v1.0.4 (svc_tools v2.8.0)                 Started 2022-11-30 22:19:21

Output from node: r1n1                                retval: 0
LABEL=SWAP swap swap defaults 0 0                     <-- missing extended swap partition

Output from node: r1n2                                retval: 0
/swapfile     swap swap defaults 0 0                  <-- missing native swap partition

Output from node: r1n3                                retval: 0
LABEL=SWAP swap swap defaults 0 0
/swapfile     swap swap defaults 0 0

Output from node: r1n4                                retval: 0
LABEL=SWAP swap swap defaults 0 0
/swapfile     swap swap defaults 0 0

Output from node: r1n5                                retval: 0
LABEL=SWAP swap swap defaults 0 0
/swapfile     swap swap defaults 0 0

Output from node: r1n6                                retval: 0
LABEL=SWAP swap swap defaults 0 0
/swapfile     swap swap defaults 0 0

Output from node: r1n7                                retval: 0
LABEL=SWAP swap swap defaults 0 0
/swapfile     swap swap defaults 0 0

Output from node: r1n8                                retval: 0
LABEL=SWAP swap swap defaults 0 0
/swapfile     swap swap defaults 0 0

Confirme se o arquivo SWAP está presente em todos os nós.

Comando:

# svc_exec 'ls -lh /swapfile'

Exemplo:

admin@ecsnode1:~> svc_exec 'ls -lh /swapfile'
svc_exec v1.0.4 (svc_tools v2.8.0)                 Started 2022-11-30 22:26:48

Output from node: r1n1                                retval: 0
ls: cannot access '/swapfile': No such file or directory

Output from node: r1n2                                retval: 0
-rw------- 1 root root 8.0G Feb 11  2022 /swapfile

Output from node: r1n3                                retval: 0
-rw------- 1 root root 8.0G Feb 11  2022 /swapfile

Output from node: r1n4                                retval: 0
-rw------- 1 root root 8.0G Feb 11  2022 /swapfile

Output from node: r1n5                                retval: 0
-rw------- 1 root root 8.0G Feb 11  2022 /swapfile

Output from node: r1n6                                retval: 0
-rw------- 1 root root 8.0G Feb 11  2022 /swapfile

Output from node: r1n7                                retval: 0
-rw------- 1 root root 8.0G Feb 11  2022 /swapfile

Output from node: r1n8                                retval: 0
-rw------- 1 root root 8.0G Jul 26 02:03 /swapfile

Resolution

IMPORTANTE! Um novo recurso foi lançado no xDoctor 4-8.104.0 e superior. Essa base de conhecimento (KB) agora é automatizada com o xDoctor AutoPilot abordando a maioria dos problemas sem a necessidade de envolvimento do suporte.

Esse recurso é nativo do xDoctor 4-8.104.0 e versões posteriores, para problemas de sintaxe e uso, consulte o ECS: ObjectScale: Como executar scripts de automação da KB (piloto automático).(pode exigir login no Suporte Dell)

Execute o comando de automação de um nó principal com o xDoctor 4-8.104.0 e superior.
Nota: --target-node, --target-rack and --target-vdc é suportado para este script.

Comando:

# sudo xdoctor autopilot --kb 205933 --target-node <NAN IP>
# sudo xdoctor autopilot --kb 205933 --target-rack <Rack Name>
# sudo xdoctor autopilot --kb 205933 --target-vdc <VDC Name>

Exemplo:

admin@ecsnode1:~> sudo xdoctor autopilot --kb 205933 --target-node 169.254.1.1
Checking for existing screen sessions...
Starting screen session 'autopilot_kb_205933_20250627_212503'...
Screen session 'autopilot_kb_205933_20250627_212503' started successfully.
Attaching to screen session 'autopilot_kb_205933_20250627_212503'...

Analise um resumo das ações realizadas.

Exemplo:

TASK [Summary for SWAP and fstab issues addressed] *********************************************************************************************************************************************
ok: [169.254.1.7] => {
    "msg": [
        "************************************************************************************************************************************************",
        "************************************************************************************************************************************************",
        " An 8GB swap file was created and configured as /swapfile with swap enabled. ",
        " fstab was updated with entries for /swapfile, and a backup prior to the change was created in: /etc/fstab.28734.2024-08-28@19:44:38~. ",
        " No duplicate entries were found in fstab. ",
        "************************************************************************************************************************************************",
        "************************************************************************************************************************************************"
    ]
}

Confirme a atualização do MOTD com os detalhes de troca e as alterações aplicadas.
Nota: Se o MOTD atual tiver o número da KB ou a palavra /swapfile, o MOTD não será atualizado.

Comando:

# yes or no

Exemplo:

The next steps are to detect keywords in the MOTD content and update the MOTD with custom content for the KB specifics. IMPORTANT! You will need customer permission to do this action for the KB. Would you like to proceed with the steps by typing 'Yes' or 'Y', or skip the MOTD update actions by typing 'No' or 'N':
: y

Analise o resumo de alterações do MOTD para adicionar novo conteúdo do MOTD:

Exemplo:

TASK [MOTD summary] ****************************************************************************************************************************************************************************
ok: [169.254.1.7] => {
    "msg": [
        "************************************************************************************************************************************************",
        "New MOTD content:",
        "************************************************************************************************************************************************",
        "************************************************************************************************************************************************",
        [
            "",
"==============================================================================================================================================",
            "2024-08-28 | SR#84955203 | KB 186358 has been applied to this system, adding an 8GB swap file to /swapfile. Please reapply if a node has been reimaged.",
            "=============================================================================================================================================="
        ],
        "************************************************************************************************************************************************",
        "************************************************************************************************************************************************"
    ]
}

Affected Products

ECS Appliance

Article Number: 000205933

Article Type: Solution

Last Modified: 24 Jul 2025

Version: 8

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ECS: memória swap total do xDoctor RAP137 inconsistente no rack do ECS

Summary: A memória de troca total é inconsistente no rack ECS.

Symptoms

Cause

Resolution

Affected Products

Article Properties

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ECS: memória swap total do xDoctor RAP137 inconsistente no rack do ECS

Summary: A memória de troca total é inconsistente no rack ECS.

Detailed Article

Symptoms

Cause

Resolution

Affected Products

Symptoms

Cause

Resolution

Affected Products

Article Properties

Find answers to your questions from other Dell users

Support Services

Article Properties

Find answers to your questions from other Dell users

Support Services