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docs/VictoriaLogs/data-ingestion/README.md: document how to verify whether the data is successfully ingested into VictoriaLogs

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20
docs/VictoriaLogs/data-ingestion/README.md
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@ -68,7 +68,7 @@ The command should return the following response:
{"_msg":"cannot open file","_stream":"{}","_time":"2023-06-21T04:24:24Z","host.name":"host123"} {"_msg":"cannot open file","_stream":"{}","_time":"2023-06-21T04:24:24Z","host.name":"host123"}
``` ```
Note that the response contains [`_msg`](https://docs.victoriametrics.com/VictoriaLogs/keyConcepts.html#message-field), The response by default contains [`_msg`](https://docs.victoriametrics.com/VictoriaLogs/keyConcepts.html#message-field),
[`_stream`](https://docs.victoriametrics.com/VictoriaLogs/keyConcepts.html#stream-fields) and [`_stream`](https://docs.victoriametrics.com/VictoriaLogs/keyConcepts.html#stream-fields) and
[`_time`](https://docs.victoriametrics.com/VictoriaLogs/keyConcepts.html#time-field) fields plus the explicitly mentioned fields. [`_time`](https://docs.victoriametrics.com/VictoriaLogs/keyConcepts.html#time-field) fields plus the explicitly mentioned fields.
See [these docs](https://docs.victoriametrics.com/VictoriaLogs/LogsQL.html#querying-specific-fields) for details. See [these docs](https://docs.victoriametrics.com/VictoriaLogs/LogsQL.html#querying-specific-fields) for details.
@ -119,7 +119,7 @@ The command should return the following response:
{"_msg":"oh no!","_stream":"{stream=\"stream1\"}","_time":"2023-06-20T15:32:10.567Z","log.level":"error"} {"_msg":"oh no!","_stream":"{stream=\"stream1\"}","_time":"2023-06-20T15:32:10.567Z","log.level":"error"}
``` ```
Note that the response contains [`_msg`](https://docs.victoriametrics.com/VictoriaLogs/keyConcepts.html#message-field), The response by default contains [`_msg`](https://docs.victoriametrics.com/VictoriaLogs/keyConcepts.html#message-field),
[`_stream`](https://docs.victoriametrics.com/VictoriaLogs/keyConcepts.html#stream-fields) and [`_stream`](https://docs.victoriametrics.com/VictoriaLogs/keyConcepts.html#stream-fields) and
[`_time`](https://docs.victoriametrics.com/VictoriaLogs/keyConcepts.html#time-field) fields plus the explicitly mentioned fields. [`_time`](https://docs.victoriametrics.com/VictoriaLogs/keyConcepts.html#time-field) fields plus the explicitly mentioned fields.
See [these docs](https://docs.victoriametrics.com/VictoriaLogs/LogsQL.html#querying-specific-fields) for details. See [these docs](https://docs.victoriametrics.com/VictoriaLogs/LogsQL.html#querying-specific-fields) for details.
@ -164,6 +164,22 @@ These headers may contain the needed tenant to ingest data to. See [multitenancy
## Troubleshooting ## Troubleshooting
The following command can be used for verifying whether the data is successfully ingested into VictoriaLogs:
```logsql
curl http://localhost:9428/select/logsql/query -d 'query=*' | head
```
This command selects all the data ingested into VictoriaLogs via [HTTP query API](https://docs.victoriametrics.com/VictoriaLogs/querying/#http-api)
using [any value filter](https://docs.victoriametrics.com/VictoriaLogs/LogsQL.html#any-value-filter),
while `head` cancels query execution after reading the first 10 log lines. See [these docs](https://docs.victoriametrics.com/VictoriaLogs/querying/#command-line)
for more details on how `head` integrates with VictoriaLogs.
The response by default contains [`_msg`](https://docs.victoriametrics.com/VictoriaLogs/keyConcepts.html#message-field),
[`_stream`](https://docs.victoriametrics.com/VictoriaLogs/keyConcepts.html#stream-fields) and
[`_time`](https://docs.victoriametrics.com/VictoriaLogs/keyConcepts.html#time-field) fields plus the explicitly mentioned fields.
See [these docs](https://docs.victoriametrics.com/VictoriaLogs/LogsQL.html#querying-specific-fields) for details.
VictoriaLogs provides the following command-line flags, which can help debugging data ingestion issues: VictoriaLogs provides the following command-line flags, which can help debugging data ingestion issues:
- `-logNewStreams` - if this flag is passed to VictoriaLogs, then it logs all the newly - `-logNewStreams` - if this flag is passed to VictoriaLogs, then it logs all the newly

2
docs/VictoriaLogs/querying/README.md
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@ -28,7 +28,7 @@ For example, the following query returns all the log entries with the `error` wo
curl http://localhost:9428/select/logsql/query -d 'query=error' curl http://localhost:9428/select/logsql/query -d 'query=error'
``` ```
Note that the response contains [`_msg`](https://docs.victoriametrics.com/VictoriaLogs/keyConcepts.html#message-field), The response by default contains [`_msg`](https://docs.victoriametrics.com/VictoriaLogs/keyConcepts.html#message-field),
[`_stream`](https://docs.victoriametrics.com/VictoriaLogs/keyConcepts.html#stream-fields) and [`_stream`](https://docs.victoriametrics.com/VictoriaLogs/keyConcepts.html#stream-fields) and
[`_time`](https://docs.victoriametrics.com/VictoriaLogs/keyConcepts.html#time-field) fields plus the explicitly mentioned fields. [`_time`](https://docs.victoriametrics.com/VictoriaLogs/keyConcepts.html#time-field) fields plus the explicitly mentioned fields.
See [these docs](https://docs.victoriametrics.com/VictoriaLogs/LogsQL.html#querying-specific-fields) for details. See [these docs](https://docs.victoriametrics.com/VictoriaLogs/LogsQL.html#querying-specific-fields) for details.