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Posted to issues@kvrocks.apache.org by "iushas (via GitHub)" <gi...@apache.org> on 2026/10/16 03:19:43 UTC

[I] kvrocks slave 节点经常回卡住，连接无法建立 [kvrocks]

iushas opened a new issue, #3683:
URL: https://github.com/apache/kvrocks/issues/3683

   ### Search before asking
   
   - [x] I had searched in the [issues](https://github.com/apache/kvrocks/issues) and found no similar issues.
   
   
   ### Version
   
   2.6.10
   
   ### Minimal reproduce step
   
   没发手动浮现
   
   ### What did you expect to see?
   
   找到原因，并解决
   
   ### What did you see instead?
   
   现在会不定期卡住
   
   Worker::Run
   -> event_base_loop
   -> redis::Connection::OnRead
   -> redis::Connection::ExecuteCommands
   -> redis::Connection::ExecuteCommand
   -> redis::CommandInfo::Execute
   -> Server::GetInfo
   -> Server::GetRocksDBInfo
   
   
   
       98.11%     0.00%  worker       [unknown]         [.] 0x9066001ea382e9c6
               |
               ---0x9066001ea382e9c6
                  bufferevent_run_deferred_callbacks_unlocked
                  redis::Connection::OnRead
                  redis::Connection::ExecuteCommands
                  redis::Connection::ExecuteCommand
                  redis::CommandInfo::Execute
                  Server::GetInfo
                  std::_Function_handler<std::vector<Server::InfoEntry, std::allocator<Server::InfoEntry> > (Server*), std::vector<Server::InfoEntry, std::allocator<Server::InfoEntry> > (Server::*)()>::_M_invoke
                  Server::GetRocksDBInfo
                  rocksdb::DBImpl::GetIntPropertyInternal
                  |          
                  |--95.08%--rocksdb::InternalStats::HandleBlockCachePinnedUsage
                  |          rocksdb::clock_cache::ClockCacheShard<rocksdb::clock_cache::AutoHyperClockTable>::GetPinnedUsage
                  |          
                   --3.03%--rocksdb::InternalStats::HandleEstimateTableReadersMem
                             rocksdb::Version::GetMemoryUsageByTableReaders
                             rocksdb::TableCache::GetMemoryUsageByTableReader
                             |          
                              --2.41%--rocksdb::BlockBasedTable::ApproximateMemoryUsage
   
   
   
   ### Anything Else?
   
   堆栈信息[user_stacks.txt](https://github.com/user-attachments/files/33523090/user_stacks.txt)
   perf分析报告[perf_report.txt](https://github.com/user-attachments/files/33523091/perf_report.txt)
   
   ### Are you willing to submit a PR?
   
   - [ ] I'm willing to submit a PR!


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Re: [I] kvrocks slave 节点经常回卡住，连接无法建立 [kvrocks]

Posted by "git-hulk (via GitHub)" <gi...@apache.org>.
git-hulk commented on issue #3683:
URL: https://github.com/apache/kvrocks/issues/3683#issuecomment-6207825703

   @iushas Please have a try at the latest version.


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Re: [I] kvrocks slave 节点经常回卡住，连接无法建立 [kvrocks]

Posted by "iushas (via GitHub)" <gi...@apache.org>.
iushas commented on issue #3683:
URL: https://github.com/apache/kvrocks/issues/3683#issuecomment-6207852849

   > 2\. [@iushas](https://github.com/iushas) Please have a try at the latest version.
   
   这是已知问题吗，新版本做了修复对吗 @git-hulk 


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Re: [I] High CPU in slave node [kvrocks]

Posted by "git-hulk (via GitHub)" <gi...@apache.org>.
git-hulk commented on issue #3683:
URL: https://github.com/apache/kvrocks/issues/3683#issuecomment-6212105633

   @iushas We need to investigate whether this issue is caused by how HCC scans the pin cache usage. You can change the cache type to `lru` to see if this problem disappears.


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