# Doing nothing and CPU: 8% user, 10% system

**URL:** <https://discuss.elastic.co/t/doing-nothing-and-cpu-8-user-10-system/8363>\
**Category:** Elasticsearch\
**Created:** [July 9, 2012, 3:30pm UTC](https://discuss.elastic.co/t/doing-nothing-and-cpu-8-user-10-system/8363 "2012-07-09T15:30:57Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![Filirom1](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/filirom1/32/2234_2.png) [@Filirom1](https://discuss.elastic.co/u/Filirom1)\
**Post date:** [July 9, 2012, 3:30pm UTC](https://discuss.elastic.co/t/doing-nothing-and-cpu-8-user-10-system/8363/1 "2012-07-09T15:30:57Z")

</div>

Hi,

I am wondering why ES is using 20% of my CPU, even when alone, empty and  
doing nothing ?

04:05:01 PM CPU %user %nice %system %iowait %steal  
%idle

04:58:01 PM all 8.34 0.00 10.23 0.00 0.00  
81.43  
05:00:01 PM all 8.17 0.00 10.23 0.00 0.00  
81.60  
05:01:01 PM all 8.45 0.00 9.80 0.00 0.00  
81.75  
05:02:01 PM all 8.23 0.00 9.39 0.00 0.00  
82.38  
05:03:01 PM all 8.80 0.00 9.09 0.00 0.00  
82.11  
05:04:01 PM all 8.58 0.00 9.21 0.00 0.00  
82.21  
05:05:01 PM all 8.30 0.00 9.88 0.00 0.00  
81.82  
05:06:01 PM all 8.21 0.00 9.62 0.00 0.00  
82.18  
05:07:01 PM all 8.16 0.00 10.01 0.00 0.00  
81.82  
05:08:01 PM all 8.46 0.00 9.94 0.00 0.00  
81.60  
05:09:01 PM all 9.68 0.00 9.80 0.00 0.00  
80.53  
05:10:01 PM all 8.48 0.00 10.27 0.00 0.00  
81.25  
05:11:01 PM all 8.43 0.00 9.88 0.00 0.00  
81.69  
05:12:01 PM all 8.65 0.00 10.21 0.00 0.00  
81.14  
05:13:01 PM all 8.44 0.00 10.65 0.00 0.00  
80.91  
05:14:01 PM all 8.84 0.00 10.32 0.00 0.00  
80.84  
05:15:01 PM all 8.46 0.00 9.10 0.00 0.00  
82.44  
05:16:01 PM all 7.51 0.00 7.19 0.00 0.00  
85.31  
05:17:01 PM all 7.62 0.00 5.97 0.00 0.00  
86.40  
05:18:01 PM all 6.97 0.00 7.59 0.00 0.00  
85.45  
05:19:01 PM all 8.32 0.00 10.86 0.00 0.00  
80.82

When I do a `strace -p`pidof java`-f`, this is what I saw:

[pid 28830] \<... futex resumed\> ) = 0  
[pid 28829] \<... futex resumed\> ) = -1 ETIMEDOUT (Connection timed  
out)  
[pid 28828] \<... futex resumed\> ) = -1 ETIMEDOUT (Connection timed  
out)  
[pid 28827] \<... futex resumed\> ) = 0  
[pid 28830] futex(0x7f1858000bf4,  
FUTEX\_WAIT\_BITSET\_PRIVATE|FUTEX\_CLOCK\_REALTIME, 1, {1341847402, 17956000},  
ffffffff \<unfinished ...\>  
[pid 28829] futex(0x7f18f04823c0, FUTEX\_WAKE\_PRIVATE, 1 \<unfinished ...\>  
[pid 28828] futex(0x7f18f0570228, FUTEX\_WAKE\_PRIVATE, 1 \<unfinished ...\>  
[pid 28819] \<... futex resumed\> ) = -1 ETIMEDOUT (Connection timed  
out)  
[pid 28830] \<... futex resumed\> ) = -1 ETIMEDOUT (Connection timed  
out)  
[pid 28829] \<... futex resumed\> ) = 0  
[pid 28828] \<... futex resumed\> ) = 0  
[pid 28827] futex(0x7f186c000ab4,  
FUTEX\_WAIT\_BITSET\_PRIVATE|FUTEX\_CLOCK\_REALTIME, 1, {1341847401, 86975000},  
ffffffff \<unfinished ...\>  
[pid 28819] futex(0x7f18f0361028, FUTEX\_WAKE\_PRIVATE, 1 \<unfinished ...\>  
[pid 28830] futex(0x7f18f0425e28, FUTEX\_WAKE\_PRIVATE, 1 \<unfinished ...\>  
[pid 28829] futex(0x7f1864002704,  
FUTEX\_WAIT\_BITSET\_PRIVATE|FUTEX\_CLOCK\_REALTIME, 1, {1341847401, 338537606},  
ffffffff \<unfinished ...\>  
[pid 28828] futex(0x7f1860000bf4,  
FUTEX\_WAIT\_BITSET\_PRIVATE|FUTEX\_CLOCK\_REALTIME, 1, {1341847401, 191046000},  
ffffffff \<unfinished ...\>  
[pid 28827] \<... futex resumed\> ) = -1 ETIMEDOUT (Connection timed  
out)  
[pid 28819] \<... futex resumed\> ) = 0  
[pid 28830] \<... futex resumed\> ) = 0  
[pid 28829] \<... futex resumed\> ) = -1 ETIMEDOUT (Connection timed  
out)  
[pid 28828] \<... futex resumed\> ) = -1 ETIMEDOUT (Connection timed  
out)

...

Is it a normal behaviour ?

uname -a  
Linux tpsmdt14s 2.6.32-220.el6.x86\_64 #1 SMP Tue Dec 6 19:48:22 GMT 2011  
x86\_64 x86\_64 x86\_64 GNU/Linux

[http://tpsmdt14s:9023/\_cluster/nodes/stats](http://tpsmdt14s:9023/_cluster/nodes/stats)  
{

- cluster\_name: search-bench-different-name
- nodes: {
  - GYRwNRHCR66FwBg7jkalow: {
    - timestamp: 1341847220159
    - name: tpsmdt14s
    - transport\_address: inet[/10.26.165.17:9027]
    - hostname: tpsmdt14s
    - attributes: {
      - zone: B  
}

    - indices: {
      - store: {
        - size: 0b
        - size\_in\_bytes: 0
        - throttle\_time: 0s
        - throttle\_time\_in\_millis: 0  
}

      - docs: {
        - count: 0
        - deleted: 0  
}

      - indexing: {
        - index\_total: 0
        - index\_time: 0s
        - index\_time\_in\_millis: 0
        - index\_current: 0
        - delete\_total: 0
        - delete\_time: 0s
        - delete\_time\_in\_millis: 0
        - delete\_current: 0  
}

      - get: {
        - total: 0
        - time: 0s
        - time\_in\_millis: 0
        - exists\_total: 0
        - exists\_time: 0s
        - exists\_time\_in\_millis: 0
        - missing\_total: 0
        - missing\_time: 0s
        - missing\_time\_in\_millis: 0
        - current: 0  
}

      - search: {
        - query\_total: 0
        - query\_time: 0s
        - query\_time\_in\_millis: 0
        - query\_current: 0
        - fetch\_total: 0
        - fetch\_time: 0s
        - fetch\_time\_in\_millis: 0
        - fetch\_current: 0  
}

      - cache: {
        - field\_evictions: 0
        - field\_size: 0b
        - field\_size\_in\_bytes: 0
        - filter\_count: 0
        - filter\_evictions: 0
        - filter\_size: 0b
        - filter\_size\_in\_bytes: 0  
}

      - merges: {
        - current: 0
        - current\_docs: 0
        - current\_size: 0b
        - current\_size\_in\_bytes: 0
        - total: 0
        - total\_time: 0s
        - total\_time\_in\_millis: 0
        - total\_docs: 0
        - total\_size: 0b
        - total\_size\_in\_bytes: 0  
}

      - refresh: {
        - total: 0
        - total\_time: 0s
        - total\_time\_in\_millis: 0  
}

      - flush: {
        - total: 0
        - total\_time: 0s
        - total\_time\_in\_millis: 0  
}  
}  
}  
}

}

$ cat /proc/cpuinfo  
processor : 0  
vendor\_id : GenuineIntel  
cpu family : 6  
model : 26  
model name : Intel(R) Xeon(R) CPU L5520 @ 2.27GHz  
stepping : 5  
cpu MHz : 2266.808  
cache size : 8192 KB  
physical id : 0  
siblings : 8  
core id : 0  
cpu cores : 4  
apicid : 0  
initial apicid : 0  
fpu : yes  
fpu\_exception : yes  
cpuid level : 11  
wp : yes  
flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36  
clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm  
constant\_tsc arch\_perfmon pebs bts rep\_good xtopology nonstop\_tsc  
aperfmperf pni dtes64 monitor ds\_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca  
sse4\_1 sse4\_2 popcnt lahf\_lm ida dts tpr\_shadow vnmi flexpriority ept vpid  
bogomips : 4533.61  
clflush size : 64  
cache\_alignment : 64  
address sizes : 40 bits physical, 48 bits virtual  
power management:  
....  
processor : 15  
vendor\_id : GenuineIntel  
cpu family : 6  
model : 26  
model name : Intel(R) Xeon(R) CPU L5520 @ 2.27GHz  
stepping : 5  
cpu MHz : 2266.808  
cache size : 8192 KB  
physical id : 1  
siblings : 8  
core id : 3  
cpu cores : 4  
apicid : 23  
initial apicid : 23  
fpu : yes  
fpu\_exception : yes  
cpuid level : 11  
wp : yes  
flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36  
clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm  
constant\_tsc arch\_perfmon pebs bts rep\_good xtopology nonstop\_tsc  
aperfmperf pni dtes64 monitor ds\_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca  
sse4\_1 sse4\_2 popcnt lahf\_lm ida dts tpr\_shadow vnmi flexpriority ept vpid  
bogomips : 4532.68  
clflush size : 64  
cache\_alignment : 64  
address sizes : 40 bits physical, 48 bits virtual

$ cat /MIDDLE/smartdata/elasticsearch/conf/elasticsearch.yml

name: tpsmdt14s

# The cluster name

cluster.name: search-bench-different-name

# Path Settings

path:  
logs: /MIDDLE/elasticsearch/logs  
data: /DATAS

# Force all memory to be locked, forcing the JVM to never swap

bootstrap.mlockall: false

# 

[http://www.elasticsearch.org/guide/reference/api/admin-indices-update-settings.html](http://www.elasticsearch.org/guide/reference/api/admin-indices-update-settings.html)  
index:  
number\_of\_shards: 6  
number\_of\_replicas: 1

# [http://www.elasticsearch.org/guide/reference/modules/gateway/index.html](http://www.elasticsearch.org/guide/reference/modules/gateway/index.html)

gateway: none

# [http://www.elasticsearch.org/guide/reference/modules/transport.html](http://www.elasticsearch.org/guide/reference/modules/transport.html)

transport:  
tcp:  
port: 9027

# [http://www.elasticsearch.org/guide/reference/modules/http.html](http://www.elasticsearch.org/guide/reference/modules/http.html)

http:  
enabled: true  
port: 9023-9023  
max\_content\_length: 100mb

# [http://www.elasticsearch.org/guide/reference/modules/threadpool.html](http://www.elasticsearch.org/guide/reference/modules/threadpool.html)

threadpool:  
index:  
type: blocking  
min: 100  
size: 1000  
wait\_time: 10s

# [http://www.elasticsearch.org/guide/reference/modules/cluster.html](http://www.elasticsearch.org/guide/reference/modules/cluster.html)

node:  
zone: B  
cluster.routing.allocation.awareness.attributes: zone

---

<div class="post-metadata">

**Author:** ![Filirom1](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/filirom1/32/2234_2.png) [@Filirom1](https://discuss.elastic.co/u/Filirom1)\
**Post date:** [July 10, 2012, 12:04pm UTC](https://discuss.elastic.co/t/doing-nothing-and-cpu-8-user-10-system/8363/2 "2012-07-10T12:04:46Z")

</div>

It was because of the leap second with the JVM

service ntpd stop  
date -s "`date`"  
service ntpd start

Now it works great.

2012/7/9 Romain [filirom1@gmail.com](mailto:filirom1@gmail.com)

> Hi,
> 
> I am wondering why ES is using 20% of my CPU, even when alone, empty and  
> doing nothing ?
> 
> 04:05:01 PM CPU %user %nice %system %iowait %steal  
> %idle
> 
> 04:58:01 PM all 8.34 0.00 10.23 0.00 0.00  
> 81.43  
> 05:00:01 PM all 8.17 0.00 10.23 0.00 0.00  
> 81.60  
> 05:01:01 PM all 8.45 0.00 9.80 0.00 0.00  
> 81.75  
> 05:02:01 PM all 8.23 0.00 9.39 0.00 0.00  
> 82.38  
> 05:03:01 PM all 8.80 0.00 9.09 0.00 0.00  
> 82.11  
> 05:04:01 PM all 8.58 0.00 9.21 0.00 0.00  
> 82.21  
> 05:05:01 PM all 8.30 0.00 9.88 0.00 0.00  
> 81.82  
> 05:06:01 PM all 8.21 0.00 9.62 0.00 0.00  
> 82.18  
> 05:07:01 PM all 8.16 0.00 10.01 0.00 0.00  
> 81.82  
> 05:08:01 PM all 8.46 0.00 9.94 0.00 0.00  
> 81.60  
> 05:09:01 PM all 9.68 0.00 9.80 0.00 0.00  
> 80.53  
> 05:10:01 PM all 8.48 0.00 10.27 0.00 0.00  
> 81.25  
> 05:11:01 PM all 8.43 0.00 9.88 0.00 0.00  
> 81.69  
> 05:12:01 PM all 8.65 0.00 10.21 0.00 0.00  
> 81.14  
> 05:13:01 PM all 8.44 0.00 10.65 0.00 0.00  
> 80.91  
> 05:14:01 PM all 8.84 0.00 10.32 0.00 0.00  
> 80.84  
> 05:15:01 PM all 8.46 0.00 9.10 0.00 0.00  
> 82.44  
> 05:16:01 PM all 7.51 0.00 7.19 0.00 0.00  
> 85.31  
> 05:17:01 PM all 7.62 0.00 5.97 0.00 0.00  
> 86.40  
> 05:18:01 PM all 6.97 0.00 7.59 0.00 0.00  
> 85.45  
> 05:19:01 PM all 8.32 0.00 10.86 0.00 0.00  
> 80.82
> 
> When I do a `strace -p `pidof java` -f`, this is what I saw:
> 
> [pid 28830] \<... futex resumed\> ) = 0  
> [pid 28829] \<... futex resumed\> ) = -1 ETIMEDOUT (Connection timed  
> out)  
> [pid 28828] \<... futex resumed\> ) = -1 ETIMEDOUT (Connection timed  
> out)  
> [pid 28827] \<... futex resumed\> ) = 0  
> [pid 28830] futex(0x7f1858000bf4,  
> FUTEX\_WAIT\_BITSET\_PRIVATE|FUTEX\_CLOCK\_REALTIME, 1, {1341847402, 17956000},  
> ffffffff \<unfinished ...\>  
> [pid 28829] futex(0x7f18f04823c0, FUTEX\_WAKE\_PRIVATE, 1 \<unfinished ...\>  
> [pid 28828] futex(0x7f18f0570228, FUTEX\_WAKE\_PRIVATE, 1 \<unfinished ...\>  
> [pid 28819] \<... futex resumed\> ) = -1 ETIMEDOUT (Connection timed  
> out)  
> [pid 28830] \<... futex resumed\> ) = -1 ETIMEDOUT (Connection timed  
> out)  
> [pid 28829] \<... futex resumed\> ) = 0  
> [pid 28828] \<... futex resumed\> ) = 0  
> [pid 28827] futex(0x7f186c000ab4,  
> FUTEX\_WAIT\_BITSET\_PRIVATE|FUTEX\_CLOCK\_REALTIME, 1, {1341847401, 86975000},  
> ffffffff \<unfinished ...\>  
> [pid 28819] futex(0x7f18f0361028, FUTEX\_WAKE\_PRIVATE, 1 \<unfinished ...\>  
> [pid 28830] futex(0x7f18f0425e28, FUTEX\_WAKE\_PRIVATE, 1 \<unfinished ...\>  
> [pid 28829] futex(0x7f1864002704,  
> FUTEX\_WAIT\_BITSET\_PRIVATE|FUTEX\_CLOCK\_REALTIME, 1, {1341847401, 338537606},  
> ffffffff \<unfinished ...\>  
> [pid 28828] futex(0x7f1860000bf4,  
> FUTEX\_WAIT\_BITSET\_PRIVATE|FUTEX\_CLOCK\_REALTIME, 1, {1341847401, 191046000},  
> ffffffff \<unfinished ...\>  
> [pid 28827] \<... futex resumed\> ) = -1 ETIMEDOUT (Connection timed  
> out)  
> [pid 28819] \<... futex resumed\> ) = 0  
> [pid 28830] \<... futex resumed\> ) = 0  
> [pid 28829] \<... futex resumed\> ) = -1 ETIMEDOUT (Connection timed  
> out)  
> [pid 28828] \<... futex resumed\> ) = -1 ETIMEDOUT (Connection timed  
> out)
> 
> ...
> 
> Is it a normal behaviour ?
> 
> uname -a  
> Linux tpsmdt14s 2.6.32-220.el6.x86\_64 #1 SMP Tue Dec 6 19:48:22 GMT 2011  
> x86\_64 x86\_64 x86\_64 GNU/Linux
> 
> [http://tpsmdt14s:9023/\_cluster/nodes/stats](http://tpsmdt14s:9023/_cluster/nodes/stats)  
> {
> 
> - cluster\_name: search-bench-different-name
> - nodes: {
> - GYRwNRHCR66FwBg7jkalow: {
> - timestamp: 1341847220159
> - name: tpsmdt14s
> - transport\_address: inet[/10.26.165.17:9027]
> - hostname: tpsmdt14s
> - attributes: {
> - zone: B  
> }
> 
> - indices: {
> - store: {
> - size: 0b
> - size\_in\_bytes: 0
> - throttle\_time: 0s
> - throttle\_time\_in\_millis: 0  
> }
> 
> - docs: {
> - count: 0
> - deleted: 0  
> }
> 
> - indexing: {
> - index\_total: 0
> - index\_time: 0s
> - index\_time\_in\_millis: 0
> - index\_current: 0
> - delete\_total: 0
> - delete\_time: 0s
> - delete\_time\_in\_millis: 0
> - delete\_current: 0  
> }
> 
> - get: {
> - total: 0
> - time: 0s
> - time\_in\_millis: 0
> - exists\_total: 0
> - exists\_time: 0s
> - exists\_time\_in\_millis: 0
> - missing\_total: 0
> - missing\_time: 0s
> - missing\_time\_in\_millis: 0
> - current: 0  
> }
> 
> - search: {
> - query\_total: 0
> - query\_time: 0s
> - query\_time\_in\_millis: 0
> - query\_current: 0
> - fetch\_total: 0
> - fetch\_time: 0s
> - fetch\_time\_in\_millis: 0
> - fetch\_current: 0  
> }
> 
> - cache: {
> - field\_evictions: 0
> - field\_size: 0b
> - field\_size\_in\_bytes: 0
> - filter\_count: 0
> - filter\_evictions: 0
> - filter\_size: 0b
> - filter\_size\_in\_bytes: 0  
> }
> 
> - merges: {
> - current: 0
> - current\_docs: 0
> - current\_size: 0b
> - current\_size\_in\_bytes: 0
> - total: 0
> - total\_time: 0s
> - total\_time\_in\_millis: 0
> - total\_docs: 0
> - total\_size: 0b
> - total\_size\_in\_bytes: 0  
> }
> 
> - refresh: {
> - total: 0
> - total\_time: 0s
> - total\_time\_in\_millis: 0  
> }
> 
> - flush: {
> - total: 0
> - total\_time: 0s
> - total\_time\_in\_millis: 0  
> }  
> }  
> }  
> }
> 
> }
> 
> $ cat /proc/cpuinfo  
> processor : 0  
> vendor\_id : GenuineIntel  
> cpu family : 6  
> model : 26  
> model name : Intel(R) Xeon(R) CPU L5520 @ 2.27GHz  
> stepping : 5  
> cpu MHz : 2266.808  
> cache size : 8192 KB  
> physical id : 0  
> siblings : 8  
> core id : 0  
> cpu cores : 4  
> apicid : 0  
> initial apicid : 0  
> fpu : yes  
> fpu\_exception : yes  
> cpuid level : 11  
> wp : yes  
> flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat  
> pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm  
> constant\_tsc arch\_perfmon pebs bts rep\_good xtopology nonstop\_tsc  
> aperfmperf pni dtes64 monitor ds\_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca  
> sse4\_1 sse4\_2 popcnt lahf\_lm ida dts tpr\_shadow vnmi flexpriority ept vpid  
> bogomips : 4533.61  
> clflush size : 64  
> cache\_alignment : 64  
> address sizes : 40 bits physical, 48 bits virtual  
> power management:  
> ....  
> processor : 15  
> vendor\_id : GenuineIntel  
> cpu family : 6  
> model : 26  
> model name : Intel(R) Xeon(R) CPU L5520 @ 2.27GHz  
> stepping : 5  
> cpu MHz : 2266.808  
> cache size : 8192 KB  
> physical id : 1  
> siblings : 8  
> core id : 3  
> cpu cores : 4  
> apicid : 23  
> initial apicid : 23  
> fpu : yes  
> fpu\_exception : yes  
> cpuid level : 11  
> wp : yes  
> flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat  
> pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm  
> constant\_tsc arch\_perfmon pebs bts rep\_good xtopology nonstop\_tsc  
> aperfmperf pni dtes64 monitor ds\_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca  
> sse4\_1 sse4\_2 popcnt lahf\_lm ida dts tpr\_shadow vnmi flexpriority ept vpid  
> bogomips : 4532.68  
> clflush size : 64  
> cache\_alignment : 64  
> address sizes : 40 bits physical, 48 bits virtual
> 
> $ cat /MIDDLE/smartdata/elasticsearch/conf/elasticsearch.yml
> 
> name: tpsmdt14s
> 
> # The cluster name
> 
> cluster.name: search-bench-different-name
> 
> # Path Settings
> 
> path:  
> logs: /MIDDLE/elasticsearch/logs  
> data: /DATAS
> 
> # Force all memory to be locked, forcing the JVM to never swap
> 
> bootstrap.mlockall: false
> 
> # 
> 
> [Elasticsearch Platform — Find real-time answers at scale | Elastic](http://www.elasticsearch.org/guide/reference/api/admin-indices-update-settings.html)  
> index:  
> number\_of\_shards: 6  
> number\_of\_replicas: 1
> 
> # [Elasticsearch Platform — Find real-time answers at scale | Elastic](http://www.elasticsearch.org/guide/reference/modules/gateway/index.html)
> 
> gateway: none
> 
> # [Elasticsearch Platform — Find real-time answers at scale | Elastic](http://www.elasticsearch.org/guide/reference/modules/transport.html)
> 
> transport:  
> tcp:  
> port: 9027
> 
> # [Elasticsearch Platform — Find real-time answers at scale | Elastic](http://www.elasticsearch.org/guide/reference/modules/http.html)
> 
> http:  
> enabled: true  
> port: 9023-9023  
> max\_content\_length: 100mb
> 
> # [Elasticsearch Platform — Find real-time answers at scale | Elastic](http://www.elasticsearch.org/guide/reference/modules/threadpool.html)
> 
> threadpool:  
> index:  
> type: blocking  
> min: 100  
> size: 1000  
> wait\_time: 10s
> 
> # [Elasticsearch Platform — Find real-time answers at scale | Elastic](http://www.elasticsearch.org/guide/reference/modules/cluster.html)
> 
> node:  
> zone: B  
> cluster.routing.allocation.awareness.attributes: zone

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 6, 2017, 3:20am UTC](https://discuss.elastic.co/t/doing-nothing-and-cpu-8-user-10-system/8363/3 "2017-07-06T03:20:44Z")

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