PowerFlex 4.X 固件更新失败，US-ASCII 格式的字节序列无效

情况说明

群集正在使用资源组执行固件升级。

症状

来自作业 ID 的deployment.log报告固件更新失败，并且手册正在运行。请注意，手册中的命令设置为运行 “/usr/sbin/sysctl -p”：

ERROR [2024-01-25T20:21:33.358478] 25824: service_deployment.rb:6084:in `process_firmware_update': Encountered an error during firmware update: ArgumentError: invalid byte sequence in US-ASCII
["org/jruby/RubyString.java:4727:in `scan'", "/opt/asm-deployer/lib/asm/provider/elementmanager/scaleio.rb:9762:in `update_sysctl_parameter'", "/opt/asm-deployer/lib/asm/service_deployment.rb:5909:in `block in process_firmware_update'", "org/jruby/RubyArray.java:1865:in `each'", "/opt/asm-deployer/lib/asm/service_deployment.rb:5731:in `process_firmware_update'", "/opt/asm-deployer/lib/asm/service_deployment.rb:504:in `process'", "/opt/asm-deployer/lib/asm.rb:369:in `block in process_deployment'", "org/jruby/RubyArray.java:1907:in `each_slice'", "/opt/asm-deployer/lib/asm.rb:351:in `block in process_deployment'", "/opt/dependencies/dell-asm-util/lib/asm/util.rb:22:in `block in execute_async'"]
...
INFO  [2024-01-25T20:22:45.017056] 25824: service_deployment.rb:1795:in `process_ansible_playbook': Starting processing playbook: [{"hosts"=>"all", "become"=>true, "vars"=>{"overcommit_ratio"=>100, "overcommit_memory"=>2}, "tasks"=>[{"name"=>"Replace unvalid values in sysctl conf", "replace"=>{"path"=>"/etc/sysctl.conf", "regexp"=>"^net.ipv4.conf.(ens192.log_martians.*)$", "replace"=>"#net.ipv4.conf.\\1 # PFXM REMOVED INVALID OPTION"}}, {"name"=>"Replace unvalid values in sysctl conf", "replace"=>{"path"=>"/etc/sysctl.conf", "regexp"=>"^net.ipv4.conf.(ens32.log_martians.*)$", "replace"=>"#net.ipv4.conf.\\1 # PFXM REMOVED INVALID OPTION"}}, {"name"=>"update threshold1", "ansible.posix.sysctl"=>{"name"=>"net.ipv4.neigh.default.gc_thresh1", "value"=>8192}}, {"name"=>"update threshold2", "ansible.posix.sysctl"=>{"name"=>"net.ipv4.neigh.default.gc_thresh2", "value"=>16384}}, {"name"=>"update threshold3", "ansible.posix.sysctl"=>{"name"=>"net.ipv4.neigh.default.gc_thresh3", "value"=>32768}}, {"name"=>"Update overcommit ratio for SDS", "ansible.posix.sysctl"=>{"name"=>"vm.overcommit_ratio", "value"=>"{{ overcommit_ratio }}"}}, {"name"=>"Update overcommit_memory ratio for SDS", "ansible.posix.sysctl"=>{"name"=>"vm.overcommit_memory", "value"=>"{{ overcommit_memory }}"}}, {"name"=>"Apply sysctl changes", "command"=>{"argv"=>["
]}}]}] with inventory:

...直接在节点上运行该命令时，可能会看到以下错误：

[root@node3 etc]# /usr/sbin/sysctl -p
...
sysctl: /etc/sysctl.conf(91): invalid syntax, continuing...

影响

无法在受影响的节点上继续进行固件更新。

根本原因

此问题源于 sysctl.conf 文件中的非 ASCII 或特殊字符，这与 sysctl 处理期间使用的预期 US-ASCII 字符编码不兼容。当系统尝试从 sysctl.conf 读取和应用配置时，它会遇到此无效字符序列，从而导致“US-ASCII 中的字节序列无效”错误。这个角色被包括在内的具体原因尚不清楚。 

解决方法

1- 备份受影响节点上的原始 sysctl.conf 文件：

 cp /etc/sysctl.conf /etc/sysctl.conf.backup

2- 从已知正常工作的节点复制 sysctl.conf 文件：

 scp /etc/sysctl.conf root@:/etc/sysctl.conf

3- 在受影响的节点上应用新配置：

 /usr/sbin/sysctl -p

4- 确保命令成功完成，没有任何“无效语法”错误。

5- 完成并验证上述步骤后，使用资源组重新启动固件更新过程。

受影响的版本 

PFxM 4.5.1.1 及更低版本

已修复问题的版本

PFxM 4.5.2