分析下这个问题 tcp6 569 0 pmcdeapp05:webcache 192.168.101.197:8458

动态未结 0 18

摘要：

分析下这个问题 tcp6 569 0 pmcdeapp05:webcache 192.168.101.197:8458 CLOSE_WAIT tcp6 582 0 pmcdeapp05:webcache 192.168.101.197:8558 CLOSE_WAIT tcp6 451 0 pmcdeapp05:webcache 192.168.101.49:45389 CLOSE_WAIT tcp6 579 0 pmcdeapp05:webcache 192.168.101.49:45365 CLOSE_WAIT tcp6 566 0 pmcdeapp05:webcache 192.168.101.49:45349 CLOSE_WAIT tcp6 476 0 pmcdeapp05:webcache 192.168.103.238:57265 ESTABLISHED tcp6 666 0 pmcdeapp05:webcache 192.168.101.197:8477 CLOSE_WAIT tcp6 451 0 pmcdeapp05:webcache 192.168.101.197:8512 CLOSE_WAIT tcp6 451 0 pmcdeapp05:webcache 192.168.101.49:45457 CLOSE_WAIT tcp6 507 0 pmcdeapp05:webcache 192.168.101.49:45388 CLOSE_WAIT tcp6 0 0 pmcdeapp05:57937 192.168.103.3:mysql ESTABLISHED tcp6 582 0 pmcdeapp05:webcache 192.168.101.197:8543 CLOSE_WAIT tcp6 566 0 pmcdeapp05:webcache 192.168.101.49:45377 CLOSE_WAIT tcp6 666 0 pmcdeapp05:webcache 192.168.101.197:8515 CLOSE_WAIT tcp6 566 0 pmcdeapp05:webcache 192.168.101.49:45362 CLOSE_WAIT tcp6 0 0 pmcdeapp05:18360 192.168.102.108:6820 ESTABLISHED tcp6 569 0 pmcdeapp05:webcache 192.168.101.197:8488 CLOSE_WAIT tcp6 451 0 pmcdeapp05:webcache 192.168.101.49:45379 CLOSE_WAIT tcp6 566 0 pmcdeapp05:webcache 192.168.101.49:45404 CLOSE_WAIT tcp6 0 0 pmcdeapp05:56664 192.168.103.3:mysql ESTABLISHED tcp6 0 0 pmcdeapp05:62614 192.168.103.3:mysql ESTABLISHED tcp6 582 0 pmcdeapp05:webcache 192.168.101.49:45443 CLOSE_WAIT tcp6 579 0 pmcdeapp05:webcache 192.168.101.49:45435 CLOSE_WAIT tcp6 560 0 pmcdeapp05:webcache 192.168.101.49:45353 CLOSE_WAIT tcp6 560 0 pmcdeapp05:webcache 192.168.101.49:45384 CLOSE_WAIT tcp6 579 0 pmcdeapp05:webcache 192.168.101.49:45400 CLOSE_WAIT tcp6 579 0 pmcdeapp05:webcache 192.168.101.49:45392 CLOSE_WAIT tcp6 451 0 pmcdeapp05:webcache 192.168.101.197:8560 CLOSE_WAIT tcp6 582 0 pmcdeapp05:webcache 192.168.101.197:8573 CLOSE_WAIT tcp6 579 0 pmcdeapp05:webcache 192.168.101.197:8582 CLOSE_WAIT tcp6 0 0 pmcdeapp05:58977 192.168.103.3:mysql ESTABLISHED tcp6 569 0 pmcdeapp05:webcache 192.168.101.197:8505 CLOSE_WAI

通过分析这些TCP连接状态,我可以得出以下几点观察和分析: 1. 连接状态分布 - 大量处于CLOSE_WAIT状态的连接(约35个) - 少量处于ESTABLISHED状态的连接(4个) 2. 连接特征 - 主机名为pmcdeapp05 - 大部分CLOSE_WAIT连接是与192.168.101.x网段的webcache服务 - ESTABLISHED连接包括: - 到192.168.103.3的MySQL连接(3个) - 到192.168.102.108:6820的连接(1个) 3. 潜在问题 - CLOSE_WAIT连接数量异常多,这通常意味着: a) 服务端没有正确关闭连接 b) 可能存在连接泄露 c) 业务层未及时处理和释放连接资源 4. 建议 - 检查应用程序的连接管理机制 - review webcache服务的连接处理逻辑 - 及时关闭和释放不再使用的连接 - 监控和定期清理这些CLOSE_WAIT状态的连接 5. 风险 - 大量CLOSE_WAIT可能导致端口耗尽 - 影响系统整体性能和稳定性建议进一步排查具体原因。