influxdata
[v3] InfluxDB 3.5 error: `File name too long`
When restarting InfluxDB 3.5, the following error occurs. After deleting the wal folder, it can start successfully. What is the specific cause?
{ code: 36, kind: InvalidFilename, message: "File name too long" }, path: "/var/lib/influxdb3/data/my-node-0/dbs/airship___airship_loan_failInfo_pv-421/; uncategorized SQLException for SQL %5B%5D; SQL state %5BHY000%5D; error code %5B1105%5D; dial tcp4 127.0.0.1:9999: connect: connection refused; nested exception is java.sql.SQLException: dial tcp4 127.0.0.1:9999: connect: connection refused, retryable%5C=null%7D%7D-2/2025-10-30/20-00/0003247624.parquet#1" } }), sleeping and retrying...\n","stream":"stdout","time":"2025-10-31T02:34:10.413486655Z"}
@caiqinwei26-byte -- can you provide the surrounding logs from influxdb 3.5?
It is telling you the error: "File name too long". Are you on windows?
In version 3.6, we removed the db name and table name from the path naming format. So airship___airship_loan_failInfo_pv won't appear in 3.6 and newer. That will shorten all your paths.
I recommend upgrading.
linux When upgrading to InfluxDB 3.6, will my historical data be affected, or do I need to rewrite the data?
Existing data at existing paths will continue to work in 3.6 as they did in 3.5. No migration or rewrite/reingest is needed for the path format change. New data in 3.6 will get the new path scheme. Old data will continue to work as the catalog contains full paths.