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querylog: the writer queue defaults to 1024 entries, and a live stream allocates its ring on subscribe instead of at boot

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mokhtar
2026-10-21 22:38:53 +02:00
parent 0cafd770c1
commit d951d03b7d
12 changed files with 234 additions and 129 deletions
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docs/reference/configuration.md
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@@ -124,7 +124,7 @@ The process log and the query history.
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| `logging.level` | `.err`, `.warn`, `.info` or `.debug` | `.info` | | The least important log line nxdns writes. The file says `.err`; the web interface says `error`. |
| `logging.retention_days` | integer | 30 | at least 1 | How long the query history is kept, and how long a device that stopped asking stays in **Clients**. |
| `logging.query_log_buffer_max` | integer | 10000 | 1–37449 | How many queries nxdns holds in memory while it waits to write them. |
| `logging.query_log_buffer_max` | integer | 1024 | 1–37449 | How many queries nxdns holds in memory while it waits to write them, each about 1.8 KiB. The default covers over a minute and a half of queries at 10 a second, far more than a household asks while a write is in progress. When the buffer is full, the oldest waiting query is dropped from the history and counted. |
| `logging.query_log_flush_interval_s` | integer | 60 | 0–3600 s | How often the query history is written to disk; see below. |
| `logging.hide_domains` | bool | false | | Stores a placeholder instead of the name in the query history. |
| `logging.hide_client_ips` | bool | false | | Stores a placeholder instead of the client's address in the query history. |