mpm-event not killing child process

[Jayesh Labade <jayesh.labade@xxxxxxxxx>]

Hi,

Server Version: Apache/2.4.25.

I am not able to figure out why apache parent process not killing childs when there are so many idle workers. Please help me to understand this

mpm-event configuration:

<IfModule mpm_event_module>
        StartServers                     2
        MinSpareThreads          32
        MaxSpareThreads          96
        ThreadLimit                      64
        ThreadsPerChild          32
        MaxRequestWorkers         480
        MaxConnectionsPerChild   0
</IfModule>

status output:

   5 requests currently being processed, 507 idle workers

+-------------------------------------------------------------------------------------------+
|      |      |          |    Connections    |   Threads   |       Async connections        |
| Slot | PID  | Stopping |-------------------+-------------+--------------------------------|
|      |      |          | total | accepting | busy | idle | writing | keep-alive | closing |
|------+------+----------+-------+-----------+------+------+---------+------------+---------|
|0     |8660  |no        |0      |yes        |0     |32    |0        |0           |0        |
|------+------+----------+-------+-----------+------+------+---------+------------+---------|
|1     |8428  |no        |0      |yes        |0     |32    |0        |0           |0        |
|------+------+----------+-------+-----------+------+------+---------+------------+---------|
|2     |9327  |no        |1      |yes        |1     |31    |0        |0           |0        |
|------+------+----------+-------+-----------+------+------+---------+------------+---------|
|3     |9187  |no        |0      |yes        |0     |32    |0        |0           |0        |
|------+------+----------+-------+-----------+------+------+---------+------------+---------|
|4     |9222  |no        |0      |yes        |0     |32    |0        |0           |0        |
|------+------+----------+-------+-----------+------+------+---------+------------+---------|
|5     |8549  |no        |0      |yes        |0     |32    |0        |0           |0        |
|------+------+----------+-------+-----------+------+------+---------+------------+---------|
|6     |9292  |no        |1      |yes        |1     |31    |0        |0           |0        |
|------+------+----------+-------+-----------+------+------+---------+------------+---------|
|7     |9257  |no        |1      |yes        |1     |31    |0        |0           |1        |
|------+------+----------+-------+-----------+------+------+---------+------------+---------|
|8     |9328  |no        |0      |yes        |0     |32    |0        |0           |0        |
|------+------+----------+-------+-----------+------+------+---------+------------+---------|
|9     |9397  |no        |0      |yes        |0     |32    |0        |0           |0        |
|------+------+----------+-------+-----------+------+------+---------+------------+---------|
|10    |8870  |no        |7      |yes        |1     |31    |0        |0           |6        |
|------+------+----------+-------+-----------+------+------+---------+------------+---------|
|11    |9152  |no        |2      |yes        |1     |31    |0        |0           |1        |
|------+------+----------+-------+-----------+------+------+---------+------------+---------|
|12    |9398  |no        |1      |yes        |0     |32    |0        |0           |1        |
|------+------+----------+-------+-----------+------+------+---------+------------+---------|
|13    |9399  |no        |0      |yes        |0     |32    |0        |0           |0        |
|------+------+----------+-------+-----------+------+------+---------+------------+---------|
|14    |8942  |no        |0      |yes        |0     |32    |0        |0           |0        |
|------+------+----------+-------+-----------+------+------+---------+------------+---------|
|15    |8943  |no        |0      |yes        |0     |32    |0        |0           |0        |
|------+------+----------+-------+-----------+------+------+---------+------------+---------|
|Sum   |16    |0         |13     |           |5     |507   |0        |0           |9        |
+-------------------------------------------------------------------------------------------+

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Thanks,

Jayesh