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1.6 KiB
1.6 KiB
slug |
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/en/operations/system-tables/errors |
errors
Contains error codes with the number of times they have been triggered.
Columns:
name
(String) — name of the error (errorCodeToName
).code
(Int32) — code number of the error.value
(UInt64) — the number of times this error has been happened.last_error_time
(DateTime) — time when the last error happened.last_error_message
(String) — message for the last error.last_error_trace
(Array(UInt64)) — A stack trace which represents a list of physical addresses where the called methods are stored.remote
(UInt8) — remote exception (i.e. received during one of the distributed query).
Example
SELECT name, code, value
FROM system.errors
WHERE value > 0
ORDER BY code ASC
LIMIT 1
┌─name─────────────┬─code─┬─value─┐
│ CANNOT_OPEN_FILE │ 76 │ 1 │
└──────────────────┴──────┴───────┘
WITH arrayMap(x -> demangle(addressToSymbol(x)), last_error_trace) AS all
SELECT name, arrayStringConcat(all, '\n') AS res
FROM system.errors
LIMIT 1
SETTINGS allow_introspection_functions=1\G