docs-v2/content/influxdb/v1/troubleshooting/query_management.md

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---
title: InfluxQL query management
description: Show, kill, and manage queries in InfluxQL.
menu:
influxdb_v1:
name: Query management
weight: 20
parent: Troubleshoot
---
Manage your InfluxQL queries using the following:
- [SHOW QUERIES](#list-currently-running-queries-with-show-queries) to identify currently-running queries
- [KILL QUERIES](#stop-currently-running-queries-with-kill-query) to stop queries overloading your system
- [Configuration settings](#configuration-settings-for-query-management) to prevent and halt the execution of inefficient queries
> The commands and configurations provided on this page are for **Influx Query Language (InfluxQL) only** -- **no equivalent set of Flux commands and configurations currently exists**. For the most current Flux documentation, see [Get started with Flux](/influxdb/v1/flux/get-started/).
## List currently-running queries with `SHOW QUERIES`
`SHOW QUERIES` lists the query id, query text, relevant database, and duration
of all currently-running queries on your InfluxDB instance.
#### Syntax
```sql
SHOW QUERIES
```
#### Example
```
> SHOW QUERIES
qid query database duration status
--- ----- -------- -------- ------
37 SHOW QUERIES 100368u running
36 SELECT mean(myfield) FROM mymeas mydb 3s running
```
##### Explanation of the output
- `qid`: The id number of the query. Use this value with [`KILL - QUERY`](/influxdb/v1/troubleshooting/query_management/#stop-currently-running-queries-with-kill-query).
- `query`: The query text.
- `database`: The database targeted by the query.
- `duration`: The length of time that the query has been running.
See [Query Language Reference](/influxdb/v1/query_language/spec/#durations)
for an explanation of time units in InfluxDB databases.
{{% note %}}
`SHOW QUERIES` may output a killed query and continue to increment its duration
until the query record is cleared from memory.
{{% /note %}}
- `status`: The current status of the query.
## Stop currently-running queries with `KILL QUERY`
`KILL QUERY` tells InfluxDB to stop running the relevant query.
#### Syntax
Where `qid` is the query ID, displayed in the [`SHOW QUERIES`](/influxdb/v1/troubleshooting/query_management/#list-currently-running-queries-with-show-queries) output:
```sql
KILL QUERY <qid>
```
***InfluxDB Enterprise clusters:*** To kill queries on a cluster, you need to specify the query ID (qid) and the TCP host (for example, `myhost:8088`),
available in the `SHOW QUERIES` output.
```sql
KILL QUERY <qid> ON "<host>"
```
A successful `KILL QUERY` query returns no results.
#### Examples
```sql
-- kill query with qid of 36 on the local host
> KILL QUERY 36
>
```
```sql
-- kill query on InfluxDB Enterprise cluster
> KILL QUERY 53 ON "myhost:8088"
>
```
## Configuration settings for query management
The following configuration settings are in the
[coordinator](/influxdb/v1/administration/config/#query-management-settings) section of the
configuration file.
### `max-concurrent-queries`
The maximum number of running queries allowed on your instance.
The default setting (`0`) allows for an unlimited number of queries.
If you exceed `max-concurrent-queries`, InfluxDB does not execute the query and
outputs the following error:
```
ERR: max concurrent queries reached
```
### `query-timeout`
The maximum time for which a query can run on your instance before InfluxDB
kills the query.
The default setting (`"0"`) allows queries to run with no time restrictions.
This setting is a [duration literal](/influxdb/v1/query_language/spec/#durations).
If your query exceeds the query timeout, InfluxDB kills the query and outputs
the following error:
```
ERR: query timeout reached
```
### `log-queries-after`
The maximum time a query can run after which InfluxDB logs the query with a
`Detected slow query` message.
The default setting (`"0"`) will never tell InfluxDB to log the query.
This setting is a [duration literal](/influxdb/v1/query_language/spec/#durations).
Example log output with `log-queries-after` set to `"1s"`:
```
[query] 2016/04/28 14:11:31 Detected slow query: SELECT mean(usage_idle) FROM cpu WHERE time >= 0 GROUP BY time(20s) (qid: 3, database: telegraf, threshold: 1s)
```
`qid` is the id number of the query.
Use this value with [`KILL QUERY`](/influxdb/v1/troubleshooting/query_management/#stop-currently-running-queries-with-kill-query).
The default location for the log output file is `/var/log/influxdb/influxdb.log`. However on systems that use systemd (most modern Linux distributions) those logs are output to `journalctl`. You should be able to view the InfluxDB logs using the following command: `journalctl -u influxdb`
### `max-select-point`
The maximum number of [points](/influxdb/v1/concepts/glossary/#point) that a
`SELECT` statement can process.
The default setting (`0`) allows the `SELECT` statement to process an unlimited
number of points.
If your query exceeds `max-select-point`, InfluxDB kills the query and outputs
the following error:
```
ERR: max number of points reached
```
InfluxDB checks the point count every second (so queries exceeding the maximum arent immediately aborted).
### `max-select-series`
The maximum number of [series](/influxdb/v1/concepts/glossary/#series) that a
`SELECT` statement can process.
The default setting (`0`) allows the `SELECT` statement to process an unlimited
number of series.
If your query exceeds `max-select-series`, InfluxDB does not execute the query
and outputs the following error:
```
ERR: max select series count exceeded: <query_series_count> series
```
### `max-select-buckets`
The maximum number of `GROUP BY time()` buckets that a query can process.
The default setting (`0`) allows a query to process an unlimited number of
buckets.
If your query exceeds `max-select-buckets`, InfluxDB does not execute the query
and outputs the following error:
```
ERR: max select bucket count exceeded: <query_bucket_count> buckets
```