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[91mError: Cannot retrieve repository metadata (repomd.xml) for repository: base. Please verify its path and try again
[0mYumRepo Error: All mirror URLs are not using ftp, http[s] or file.
Eg. Invalid release/repo/arch combination/
removing mirrorlist with no valid mirrors: /var/cache/yum/x86_64/6/base/mirrorlist.txt
humh@MacBook-Pro ~/canal/docker fix_docker_base ± docker image ls
REPOSITORY TAG IMAGE ID CREATED SIZE
canal/canal-server latest 3ed48be6d6f6 17 hours ago 1.18GB
canal/osbase latest 78755d1f0179 18 hours ago 1.02GB
canal/osbase v2 78755d1f0179 18 hours ago 1.02GB
canal/osbase v1 5ff452f09131 18 hours ago 1.01GB
centos centos6.10 48650444e419 24 months ago 194MB
运行run.sh,起canal-server,canal.log部分如下
2021-03-04 19:29:47.555 [main] INFO com.alibaba.otter.canal.deployer.CanalLauncher - ## set default uncaught exception handler
2021-03-04 19:29:47.613 [main] INFO com.alibaba.otter.canal.deployer.CanalLauncher - ## load canal configurations
2021-03-04 19:29:47.635 [main] INFO com.alibaba.otter.canal.deployer.CanalStarter - ## start the canal server.
2021-03-04 19:29:47.729 [main] INFO com.alibaba.otter.canal.deployer.CanalController - ## start the canal server[172.17.0.2(172.17.0.2):11111]
2021-03-04 19:29:49.945 [main] INFO com.alibaba.otter.canal.deployer.CanalStarter - ## the canal server is running now ......
The text was updated successfully, but these errors were encountered:
当前使用canal版本
1.1.5
问题描述
在构建docker base过程中,主要是“canal/osbase:v1”构建失败,现象如下:
终端运行
cd canal/docker chomd +x build.sh ./build.sh base
会收到如下类似错误
错误信息可能略有不同,但大致意思都是找不到“repomd.xml”。
原因分析
base镜像基于centos:6.10,构建base过程中需要yum安装一些基础工具,但由于yum现已不再支持低版本的centos安全更新,所以导致了yum异常,最终构建失败。具体原因由于篇幅问题,我单独总结了一下blog,可见解决低版本CentOS中使用yum异常问题,(考虑避免无端的系统兼容性问题,就在不改变centos版本基础上)解决这个问题,主要办法就是修改yum配置,更换可用镜像源即可,也写在文章中了。
优化内容
顺便优化了下,可能因镜像源慢而导致的一些问题。
因篇幅问题,顺便也总结了blog,详细说明见CentOS 6使用Yum可能存在的问题以及对应优化
额外修改内容
同样是构建base(canal/osbase:v1)的问题,此问题发生在下载jdk8时,因为现dockerfile中的${DOWNLOAD_LINK},即 “http://download.oracle.com/otn-pub/java/jdk/8u181-b13/96a7b8442fe848ef90c96a2fad6ed6d1/jdk-8u181-linux-x64.rpm” 已不可用,在wget download时,会“404 not found”,导致安装jdk失败。
现jdk8资源已更新,"https://download.oracle.com/otn-pub/java/jdk/8u281-b09/89d678f2be164786b292527658ca1605/jdk-8u281-linux-x64.rpm"
上述问题,已提交为一个pr(望大佬审核)
测试
为了排除此次pr修改内容引入其他问题,本人经过多次本地构建以及运行测试。测试情况如下
再无任何代理情况下,不考虑centos:6.10拉取时长,构建时长在15min左右,有时也会在20-30min,95%的耗时在下载jdk8.rpm,取决网速。
构建后镜像大小在1G左右。
后续依次构建也无误,“canal/osbase:v1” -> “canal/osbase:v2” -> “canal/canal-server:latest”
分别构建时长如下:
具体镜像大小如下:
humh@MacBook-Pro ~/canal/docker fix_docker_base ± docker image ls REPOSITORY TAG IMAGE ID CREATED SIZE canal/canal-server latest 3ed48be6d6f6 17 hours ago 1.18GB canal/osbase latest 78755d1f0179 18 hours ago 1.02GB canal/osbase v2 78755d1f0179 18 hours ago 1.02GB canal/osbase v1 5ff452f09131 18 hours ago 1.01GB centos centos6.10 48650444e419 24 months ago 194MB
运行run.sh,起canal-server,canal.log部分如下
The text was updated successfully, but these errors were encountered: