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ubuntu22.04安装 Fcitx5输入法，并解决 chrome启用wayland后无法输入中文问题。

一。chrome启用wayland:地址栏输入：chrome://flags/，搜索PreferredOzoneplatform，把PreferredOzoneplatform，设置为wayland.二。安装Fcitx5输入法.sudoapt-getinstallfcitx5fcitx5-frontend-gtk4fc...

开发笔记 ·2024-10-01

WebAssembly (Wasm)是什么

WebAssembly 是一种新型的二进制格式，能够在浏览器中高效运行低级代码。它可以用于提升应用性能，特别是在计算密集型任务中。 ...

开发笔记 ·2024-08-31

SNMP学习笔记之SNMPWALK 安装与使用详解

net-snmp-5.3.2.2-.el5.x86_64.rpmnet-snmp-devel-5.3.2.2-.el5.x86_64.rpm （非必须安装包）net-snmp-libs-5.3.2.2-.el5.x86_64.rpmnet-snmp-utils-5.3.2.2-.el5.x86_64.rpm四...

开发笔记 ·2024-08-10

docker redis警告处理 WARNING Memory overcommit must be enabled; vm.overcommit_memory = 1

提示信息WARNINGMemoryovercommitmustbeenabled!Withoutit,abackgroundsaveorreplicationmayfailunderlowmemorycondition.Beingdisabled,itcanalsocausefailureswithoutlowmemo...

开发笔记 ·2024-07-09

mongo5报错： WARNING: MongoDB 5.0+ requires a CPU with AVX support, and your current system does not appear to have that!

错误提示WARNING:MongoDB5.0+requiresaCPUwithAVXsupport,andyourcurrentsystemdoesnotappeartohavethat!原因mongodb5需要AVX的cpu指定集，当前的cpu太旧或者没有开启.解决办法降低mongodb的版本（使用4.x的版的mon...

开发笔记 ·2024-07-09

502 bad gateway是什么意思？

一、什么是502badgateway？通俗的来讲，502badgateway代表您所访问的网站出了问题，因为502BadGateway服务器作为网关或者代理时，是为了完成访问下一个服务器，但该服务器返回了非法的应答。也许是暂时的，也许是的。建议大家稍等一下再从新访问试试。...

开发笔记 ·2024-06-23

centos下tmp目录中自动清理命令tmpwatch

首先需要安装 yuminstalltmpwatch 执行命令 tmpwatch-afv3/tmp/删除tmp目录下3小时内没用过的文件和目录-u,–atime基于访问时间来删除文件，默认的。-m,–mtime基于修改时间来删除文件。-c,–ctime基于...

开发笔记 ·2024-03-19

ORA-39164: Partition string was not found.

文档解释ORA-39164:Partitionstringwasnotfound.Cause:Ifexportingorimportingoverthenetwork,theuserspecifiedapartitionnamethatwasnotfoundinthesourcedatabase.Forimportin...

IT技术学习 ·2023-07-28

ORA-26876: invalid processed low-watermark (current position=string; new position=string)

文档解释ORA-26876:invalidprocessedlow-watermark(currentposition=string;newposition=string)Cause:Anattemptwasmadetosettheprocessedlow-watermarktoavaluethatwaslesstha...

IT技术学习 ·2023-07-28

ORA-29309: export dump file was generated by different version of DBMS_PITR package

文档解释ORA-29309:exportdumpfilewasgeneratedbydifferentversionofDBMS_PITRpackageCause:TheversionofDBMS_PITRisdifferentfromtheversionofthecloneddatabase.Action:Loadt...

IT技术学习 ·2023-07-28

ORA-41604: cannot revoke a privilege that was not granted

文档解释ORA-41604:cannotrevokeaprivilegethatwasnotgrantedCause:Anattemptwasmadetorevokeaprivilegethatwasnevergranted.Action:NoneORA-41604错误代表着不能撤销一个没有被授予的权限。官方解释常见案...

IT技术学习 ·2023-07-28

ORA-29874: warning in the execution of ODCIINDEXALTER routine

文档解释ORA-29874:warningintheexecutionofODCIINDEXALTERroutineCause:AwaringwasreturnedfromtheODCIIndexAlterroutine.Action:Checktoseeiftheroutinehasbeencodedcorrectl...

IT技术学习 ·2023-07-28

ORA-30005: missing or invalid WAIT interval

文档解释ORA-30005:missingorinvalidWAITintervalCause:Anon-zerointegermustbespecifiedforwaitinterval(inseconds)aftertheWAITkeyword.Action:Correctthesyntaxandretry.ORA...

IT技术学习 ·2023-07-28

ORA-28387: Could not acquire an enqueue for wallet operation in Oracle RAC

文档解释ORA-28387:CouldnotacquireanenqueueforwalletoperationinOracleRACCause:EnqueuetoblockTDEoperationsinOracleRACdatabasecouldnotbeobtained.Action:Retrythewalleto...

IT技术学习 ·2023-07-28

ORA-26877: must reattach after an OCIXStreamOut call was interrupted

文档解释ORA-26877:mustreattachafteranOCIXStreamOutcallwasinterruptedCause:AnattemptwasmadetoexecuteanotherOCIXStreamOutAPIwhenanearliercallwasinterruptedbecausetheX...

IT技术学习 ·2023-07-28