Uploaded image for project: 'Cassandra'
  1. Cassandra
  2. CASSANDRA-14934

Cassandra Too many open files .

    XMLWordPrintableJSON

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Normal
    • Resolution: Not A Bug
    • Fix Version/s: 3.10
    • Component/s: Local/Config
    • Labels:
    • Environment:

      This is in the Production environment .

      We have observed 70k open files for the process in non-prd . 

       

      Attached the entire logs of the open files . 

    • Severity:
      Normal
    • Since Version:

      Description

      We have 4 Node with 2 DC . 

      We are seeing 

      Caused by: java.nio.file.FileSystemException: /apps/cassandra/data/commitlog/CommitLog-6-1544453835569.log: Too many open files .

      We have increased the ulimit to 24 k. 

      lsof | grep <processid> 

      .3.3 million records . 

       

      Found ~ .2.5 millions of records are of TCP connection with either Socket connection status as ESTABLISHED/LISTEN . Found that connections are of datasource on 9042 . 

       

      Thanks

       

        Attachments

          Activity

            People

            • Assignee:
              Krishna29 Umashankar
              Reporter:
              Krishna29 Umashankar
              Authors:
              Umashankar
            • Votes:
              0 Vote for this issue
              Watchers:
              2 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved: