【 使用环境 】测试环境
【 OB or 其他组件 】
【 使用版本 】
【问题描述】两个oceanbase集群部署在不同的设备上，通过OMS进行数据迁移，一直失败
【复现路径】
【附件及日志】 oms网页管理页面显示的日志如下：
Warning: MHD_USE_THREAD_PER_CONNECTION must be used only with MHD_USE_INTERNAL_POLLING_THREAD. Flag MHD_USE_INTERNAL_POLLING_THREAD was added. Consider setting MHD_USE_INTERNAL_POLLING_THREAD explicitly.2026-07-02 19:52:06 (ConnectionManager.cpp:77): default buf size is: 1048576, Msg split size is: 131072, Force Use Encrypt: false, Using ThreadPool true2026-07-02 19:52:06 (ConnectionManager.cpp:139): listen info is: 170012026-07-02 19:52:06 (Epoll.cpp:94): Epoll start, use FD: 112026-07-02 19:52:06 (Epoll.cpp:94): Epoll start, use FD: 12Warning: MHD_USE_THREAD_PER_CONNECTION must be used only with MHD_USE_INTERNAL_POLLING_THREAD. Flag MHD_USE_INTERNAL_POLLING_THREAD was added. Consider setting MHD_USE_INTERNAL_POLLING_THREAD explicitly.[640428]OB_MALLOC COST TOO MUCH TIME, cost_time=213443, tenant_id=500, label=TenantCtxAlloca, ctx_id=0, prio=0, size=19829664, owner: ObMalloc, click_count: 1, time dist:[ALLOC_CHUNK_END=274], seq:[0]
observer的日志如下：