# ES hangs after some time

**URL:** <https://discuss.elastic.co/t/es-hangs-after-some-time/12895>\
**Category:** Elasticsearch\
**Created:** [July 23, 2013, 10:32am UTC](https://discuss.elastic.co/t/es-hangs-after-some-time/12895 "2013-07-23T10:32:41Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![Anand\_Nalya](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/anand_nalya/32/571_2.png) [@Anand\_Nalya](https://discuss.elastic.co/u/Anand_Nalya)\
**Post date:** [July 23, 2013, 10:32am UTC](https://discuss.elastic.co/t/es-hangs-after-some-time/12895/1 "2013-07-23T10:32:41Z")

</div>

Hello,

I have a single node cluster which is running on JDK 7 with G1 GC  
configured. ES\_HEAP\_SIZE is 16G and total RAM is 32G. I'm running queries  
on all the indices serially after one another. Each index contains 2  
shards, with around 5GB data in each shard.

After some time, the queries get really slow and finally ES hangs without  
any indication in the logs. CPU usage is shown in 100-400% range for the ES  
process. ES logs can be seen at

> <https://gist.github.com/anandnalya/6061423#file-es-g1-log>
>
> There are more than three files. show original

Here's the 'Memory' graph:  
[https://apps.sematext.com/spm/s/SE4TMUtXYe](https://apps.sematext.com/spm/s/SE4TMUtXYe)

Any ideas, what might be the problem here? The

Following is the log of time taken for each query and no. of records  
fetched.  
Index, Date, Records, Time(ms)  
interval\_89846,Tue Jul 23 15:02:13 IST 2013,136,15998  
interval\_89847,Tue Jul 23 15:02:24 IST 2013,85,10772  
interval\_89856,Tue Jul 23 15:02:36 IST 2013,156,12578  
interval\_89857,Tue Jul 23 15:02:53 IST 2013,172,16787  
interval\_89858,Tue Jul 23 15:03:05 IST 2013,177,12159  
interval\_89859,Tue Jul 23 15:03:21 IST 2013,184,15794  
interval\_89860,Tue Jul 23 15:03:36 IST 2013,177,15070  
interval\_89861,Tue Jul 23 15:03:46 IST 2013,163,9481  
interval\_89862,Tue Jul 23 15:04:02 IST 2013,169,16280  
interval\_89863,Tue Jul 23 15:04:19 IST 2013,163,17147  
interval\_89864,Tue Jul 23 15:04:35 IST 2013,168,15999  
interval\_89865,Tue Jul 23 15:04:52 IST 2013,163,17433  
interval\_89866,Tue Jul 23 15:05:09 IST 2013,183,16752  
interval\_89867,Tue Jul 23 15:05:27 IST 2013,161,17449  
interval\_89868,Tue Jul 23 15:05:45 IST 2013,159,18394  
interval\_89869,Tue Jul 23 15:06:01 IST 2013,165,16189  
interval\_89870,Tue Jul 23 15:06:15 IST 2013,172,13666  
interval\_89871,Tue Jul 23 15:06:30 IST 2013,154,14952  
interval\_89872,Tue Jul 23 15:06:48 IST 2013,192,18600  
interval\_89873,Tue Jul 23 15:07:05 IST 2013,164,16868  
interval\_89874,Tue Jul 23 15:07:24 IST 2013,185,18795  
interval\_89875,Tue Jul 23 15:07:38 IST 2013,145,14194  
interval\_89876,Tue Jul 23 15:08:06 IST 2013,316,28196  
interval\_89877,Tue Jul 23 15:08:31 IST 2013,438,24893  
interval\_89878,Tue Jul 23 15:08:55 IST 2013,330,23150  
interval\_89879,Tue Jul 23 15:09:13 IST 2013,359,18577  
interval\_89880,Tue Jul 23 15:09:25 IST 2013,168,12212  
interval\_89881,Tue Jul 23 15:10:10 IST 2013,174,44907  
interval\_89882,Tue Jul 23 15:10:25 IST 2013,157,14315  
interval\_89889,Tue Jul 23 15:10:34 IST 2013,126,9759  
interval\_89890,Tue Jul 23 15:10:49 IST 2013,142,14245  
interval\_89891,Tue Jul 23 15:11:00 IST 2013,98,11146  
ainterval\_89846,Tue Jul 23 15:11:37 IST 2013,136,37691  
ainterval\_89847,Tue Jul 23 15:11:48 IST 2013,85,10835  
ainterval\_89856,Tue Jul 23 15:12:20 IST 2013,156,32181  
ainterval\_89857,Tue Jul 23 15:12:59 IST 2013,172,38443  
ainterval\_89858,Tue Jul 23 15:13:31 IST 2013,177,32252  
ainterval\_89859,Tue Jul 23 15:14:17 IST 2013,184,45576  
ainterval\_89860,Tue Jul 23 15:14:46 IST 2013,177,29345  
ainterval\_89861,Tue Jul 23 15:15:47 IST 2013,163,61020  
ainterval\_89862,Tue Jul 23 15:17:54 IST 2013,169,127129  
ainterval\_89863,Tue Jul 23 15:36:10 IST 2013,163,1096058

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**Author:** ![Anand\_Nalya](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/anand_nalya/32/571_2.png) [@Anand\_Nalya](https://discuss.elastic.co/u/Anand_Nalya)\
**Post date:** [July 23, 2013, 10:42am UTC](https://discuss.elastic.co/t/es-hangs-after-some-time/12895/2 "2013-07-23T10:42:51Z")

</div>

Added gist for hot threads

> <https://gist.github.com/anandnalya/6061423#file-hotthreads>
>
> There are more than three files. show original

On Tuesday, 23 July 2013 16:02:41 UTC+5:30, Anand Nalya wrote:

> Hello,
> 
> I have a single node cluster which is running on JDK 7 with G1 GC  
> configured. ES\_HEAP\_SIZE is 16G and total RAM is 32G. I'm running queries  
> on all the indices serially after one another. Each index contains 2  
> shards, with around 5GB data in each shard.
> 
> After some time, the queries get really slow and finally ES hangs without  
> any indication in the logs. CPU usage is shown in 100-400% range for the ES  
> process. ES logs can be seen at  
> [decoded.json · GitHub](https://gist.github.com/anandnalya/6061423#file-es-g1-log)
> 
> Here's the 'Memory' graph:  
> [https://apps.sematext.com/spm/s/SE4TMUtXYe](https://apps.sematext.com/spm/s/SE4TMUtXYe)
> 
> Any ideas, what might be the problem here? The
> 
> Following is the log of time taken for each query and no. of records  
> fetched.  
> Index, Date, Records, Time(ms)  
> interval\_89846,Tue Jul 23 15:02:13 IST 2013,136,15998  
> interval\_89847,Tue Jul 23 15:02:24 IST 2013,85,10772  
> interval\_89856,Tue Jul 23 15:02:36 IST 2013,156,12578  
> interval\_89857,Tue Jul 23 15:02:53 IST 2013,172,16787  
> interval\_89858,Tue Jul 23 15:03:05 IST 2013,177,12159  
> interval\_89859,Tue Jul 23 15:03:21 IST 2013,184,15794  
> interval\_89860,Tue Jul 23 15:03:36 IST 2013,177,15070  
> interval\_89861,Tue Jul 23 15:03:46 IST 2013,163,9481  
> interval\_89862,Tue Jul 23 15:04:02 IST 2013,169,16280  
> interval\_89863,Tue Jul 23 15:04:19 IST 2013,163,17147  
> interval\_89864,Tue Jul 23 15:04:35 IST 2013,168,15999  
> interval\_89865,Tue Jul 23 15:04:52 IST 2013,163,17433  
> interval\_89866,Tue Jul 23 15:05:09 IST 2013,183,16752  
> interval\_89867,Tue Jul 23 15:05:27 IST 2013,161,17449  
> interval\_89868,Tue Jul 23 15:05:45 IST 2013,159,18394  
> interval\_89869,Tue Jul 23 15:06:01 IST 2013,165,16189  
> interval\_89870,Tue Jul 23 15:06:15 IST 2013,172,13666  
> interval\_89871,Tue Jul 23 15:06:30 IST 2013,154,14952  
> interval\_89872,Tue Jul 23 15:06:48 IST 2013,192,18600  
> interval\_89873,Tue Jul 23 15:07:05 IST 2013,164,16868  
> interval\_89874,Tue Jul 23 15:07:24 IST 2013,185,18795  
> interval\_89875,Tue Jul 23 15:07:38 IST 2013,145,14194  
> interval\_89876,Tue Jul 23 15:08:06 IST 2013,316,28196  
> interval\_89877,Tue Jul 23 15:08:31 IST 2013,438,24893  
> interval\_89878,Tue Jul 23 15:08:55 IST 2013,330,23150  
> interval\_89879,Tue Jul 23 15:09:13 IST 2013,359,18577  
> interval\_89880,Tue Jul 23 15:09:25 IST 2013,168,12212  
> interval\_89881,Tue Jul 23 15:10:10 IST 2013,174,44907  
> interval\_89882,Tue Jul 23 15:10:25 IST 2013,157,14315  
> interval\_89889,Tue Jul 23 15:10:34 IST 2013,126,9759  
> interval\_89890,Tue Jul 23 15:10:49 IST 2013,142,14245  
> interval\_89891,Tue Jul 23 15:11:00 IST 2013,98,11146  
> ainterval\_89846,Tue Jul 23 15:11:37 IST 2013,136,37691  
> ainterval\_89847,Tue Jul 23 15:11:48 IST 2013,85,10835  
> ainterval\_89856,Tue Jul 23 15:12:20 IST 2013,156,32181  
> ainterval\_89857,Tue Jul 23 15:12:59 IST 2013,172,38443  
> ainterval\_89858,Tue Jul 23 15:13:31 IST 2013,177,32252  
> ainterval\_89859,Tue Jul 23 15:14:17 IST 2013,184,45576  
> ainterval\_89860,Tue Jul 23 15:14:46 IST 2013,177,29345  
> ainterval\_89861,Tue Jul 23 15:15:47 IST 2013,163,61020  
> ainterval\_89862,Tue Jul 23 15:17:54 IST 2013,169,127129  
> ainterval\_89863,Tue Jul 23 15:36:10 IST 2013,163,1096058

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**Author:** ![jprante](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jprante/32/44941_2.png) [@jprante](https://discuss.elastic.co/u/jprante)\
**Post date:** [July 23, 2013, 4:32pm UTC](https://discuss.elastic.co/t/es-hangs-after-some-time/12895/3 "2013-07-23T16:32:23Z")

</div>

Can you give an example what query you use?

I see only you use the HasChildFilter, which is massively working against  
the G1 garbage collector.

Jörg

On Tue, Jul 23, 2013 at 12:42 PM, Anand Nalya [anand.nalya@gmail.com](mailto:anand.nalya@gmail.com) wrote:

> Added gist for hot threads  
> [decoded.json · GitHub](https://gist.github.com/anandnalya/6061423#file-hotthreads)
> 
> On Tuesday, 23 July 2013 16:02:41 UTC+5:30, Anand Nalya wrote:
> 
> > Hello,
> > 
> > I have a single node cluster which is running on JDK 7 with G1 GC  
> > configured. ES\_HEAP\_SIZE is 16G and total RAM is 32G. I'm running queries  
> > on all the indices serially after one another. Each index contains 2  
> > shards, with around 5GB data in each shard.
> > 
> > After some time, the queries get really slow and finally ES hangs without  
> > any indication in the logs. CPU usage is shown in 100-400% range for the ES  
> > process. ES logs can be seen at [https://gist.github.com/](https://gist.github.com/)\*\*  
> > anandnalya/6061423#file-es-g1-\*\*log[https://gist.github.com/anandnalya/6061423#file-es-g1-log](https://gist.github.com/anandnalya/6061423#file-es-g1-log)
> > 
> > Here's the 'Memory' graph:  
> > [https://apps.sematext.com/spm/\*\*s/SE4TMUtXYe](https://apps.sematext.com/spm/**s/SE4TMUtXYe)[https://apps.sematext.com/spm/s/SE4TMUtXYe](https://apps.sematext.com/spm/s/SE4TMUtXYe)
> > 
> > Any ideas, what might be the problem here? The
> > 
> > Following is the log of time taken for each query and no. of records  
> > fetched.  
> > Index, Date, Records, Time(ms)  
> > interval\_89846,Tue Jul 23 15:02:13 IST 2013,136,15998  
> > interval\_89847,Tue Jul 23 15:02:24 IST 2013,85,10772  
> > interval\_89856,Tue Jul 23 15:02:36 IST 2013,156,12578  
> > interval\_89857,Tue Jul 23 15:02:53 IST 2013,172,16787  
> > interval\_89858,Tue Jul 23 15:03:05 IST 2013,177,12159  
> > interval\_89859,Tue Jul 23 15:03:21 IST 2013,184,15794  
> > interval\_89860,Tue Jul 23 15:03:36 IST 2013,177,15070  
> > interval\_89861,Tue Jul 23 15:03:46 IST 2013,163,9481  
> > interval\_89862,Tue Jul 23 15:04:02 IST 2013,169,16280  
> > interval\_89863,Tue Jul 23 15:04:19 IST 2013,163,17147  
> > interval\_89864,Tue Jul 23 15:04:35 IST 2013,168,15999  
> > interval\_89865,Tue Jul 23 15:04:52 IST 2013,163,17433  
> > interval\_89866,Tue Jul 23 15:05:09 IST 2013,183,16752  
> > interval\_89867,Tue Jul 23 15:05:27 IST 2013,161,17449  
> > interval\_89868,Tue Jul 23 15:05:45 IST 2013,159,18394  
> > interval\_89869,Tue Jul 23 15:06:01 IST 2013,165,16189  
> > interval\_89870,Tue Jul 23 15:06:15 IST 2013,172,13666  
> > interval\_89871,Tue Jul 23 15:06:30 IST 2013,154,14952  
> > interval\_89872,Tue Jul 23 15:06:48 IST 2013,192,18600  
> > interval\_89873,Tue Jul 23 15:07:05 IST 2013,164,16868  
> > interval\_89874,Tue Jul 23 15:07:24 IST 2013,185,18795  
> > interval\_89875,Tue Jul 23 15:07:38 IST 2013,145,14194  
> > interval\_89876,Tue Jul 23 15:08:06 IST 2013,316,28196  
> > interval\_89877,Tue Jul 23 15:08:31 IST 2013,438,24893  
> > interval\_89878,Tue Jul 23 15:08:55 IST 2013,330,23150  
> > interval\_89879,Tue Jul 23 15:09:13 IST 2013,359,18577  
> > interval\_89880,Tue Jul 23 15:09:25 IST 2013,168,12212  
> > interval\_89881,Tue Jul 23 15:10:10 IST 2013,174,44907  
> > interval\_89882,Tue Jul 23 15:10:25 IST 2013,157,14315  
> > interval\_89889,Tue Jul 23 15:10:34 IST 2013,126,9759  
> > interval\_89890,Tue Jul 23 15:10:49 IST 2013,142,14245  
> > interval\_89891,Tue Jul 23 15:11:00 IST 2013,98,11146  
> > ainterval\_89846,Tue Jul 23 15:11:37 IST 2013,136,37691  
> > ainterval\_89847,Tue Jul 23 15:11:48 IST 2013,85,10835  
> > ainterval\_89856,Tue Jul 23 15:12:20 IST 2013,156,32181  
> > ainterval\_89857,Tue Jul 23 15:12:59 IST 2013,172,38443  
> > ainterval\_89858,Tue Jul 23 15:13:31 IST 2013,177,32252  
> > ainterval\_89859,Tue Jul 23 15:14:17 IST 2013,184,45576  
> > ainterval\_89860,Tue Jul 23 15:14:46 IST 2013,177,29345  
> > ainterval\_89861,Tue Jul 23 15:15:47 IST 2013,163,61020  
> > ainterval\_89862,Tue Jul 23 15:17:54 IST 2013,169,127129  
> > ainterval\_89863,Tue Jul 23 15:36:10 IST 2013,163,1096058
> > 
> > --  
> > You received this message because you are subscribed to the Google Groups  
> > "elasticsearch" group.  
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<div class="post-metadata">

**Author:** ![Anand\_Nalya](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/anand_nalya/32/571_2.png) [@Anand\_Nalya](https://discuss.elastic.co/u/Anand_Nalya)\
**Post date:** [July 25, 2013, 7:53am UTC](https://discuss.elastic.co/t/es-hangs-after-some-time/12895/4 "2013-07-25T07:53:34Z")

</div>

Hi,

The query is:

{  
"filtered" : {  
"query" : {  
"range" : {  
"c100" : {  
"from" : "0",  
"to" : "5293983999",  
"include\_lower" :true,  
"include\_upper" : true  
}  
}  
},  
"filter" : {  
"wrapper" : {  
"filter" : {  
"and":[{  
"or":[{  
"query" : {  
"query\_string" : {  
"query" : "c76:"p2p"",  
"default\_operator" : "and"  
}  
}  
},  
{  
"query" : {  
"query\_string" : {  
"query" : "c76:"http"",  
"default\_operator" : "and"  
}  
}  
}]  
},  
{  
"has\_child" : {  
"query" : {  
"query\_string" : {  
"query" : "microsoft",  
"fields" : ["content"]  
}  
},  
"child\_type":"mlivemass\_content"  
}  
},  
{  
"query" : {  
"query\_string" : {  
"query" : "c150:"29"",  
"default\_operator" : "and"  
}  
}  
}]  
}  
}  
}  
}  
}

On Tuesday, 23 July 2013 22:02:23 UTC+5:30, Jörg Prante wrote:

> Can you give an example what query you use?
> 
> I see only you use the HasChildFilter, which is massively working against  
> the G1 garbage collector.
> 
> Jörg
> 
> On Tue, Jul 23, 2013 at 12:42 PM, Anand Nalya \<[anand...@gmail.com](mailto:anand...@gmail.com)\<javascript:\>
> 
> > wrote:
> 
> > Added gist for hot threads  
> > [decoded.json · GitHub](https://gist.github.com/anandnalya/6061423#file-hotthreads)
> > 
> > On Tuesday, 23 July 2013 16:02:41 UTC+5:30, Anand Nalya wrote:
> > 
> > > Hello,
> > > 
> > > I have a single node cluster which is running on JDK 7 with G1 GC  
> > > configured. ES\_HEAP\_SIZE is 16G and total RAM is 32G. I'm running queries  
> > > on all the indices serially after one another. Each index contains 2  
> > > shards, with around 5GB data in each shard.
> > > 
> > > After some time, the queries get really slow and finally ES hangs  
> > > without any indication in the logs. CPU usage is shown in 100-400% range  
> > > for the ES process. ES logs can be seen at [https://gist.github.com/](https://gist.github.com/)\*\*  
> > > anandnalya/6061423#file-es-g1-\*\*log[https://gist.github.com/anandnalya/6061423#file-es-g1-log](https://gist.github.com/anandnalya/6061423#file-es-g1-log)
> > > 
> > > Here's the 'Memory' graph:  
> > > [https://apps.sematext.com/spm/\*\*s/SE4TMUtXYe](https://apps.sematext.com/spm/**s/SE4TMUtXYe)[https://apps.sematext.com/spm/s/SE4TMUtXYe](https://apps.sematext.com/spm/s/SE4TMUtXYe)
> > > 
> > > Any ideas, what might be the problem here? The
> > > 
> > > Following is the log of time taken for each query and no. of records  
> > > fetched.  
> > > Index, Date, Records, Time(ms)  
> > > interval\_89846,Tue Jul 23 15:02:13 IST 2013,136,15998  
> > > interval\_89847,Tue Jul 23 15:02:24 IST 2013,85,10772  
> > > interval\_89856,Tue Jul 23 15:02:36 IST 2013,156,12578  
> > > interval\_89857,Tue Jul 23 15:02:53 IST 2013,172,16787  
> > > interval\_89858,Tue Jul 23 15:03:05 IST 2013,177,12159  
> > > interval\_89859,Tue Jul 23 15:03:21 IST 2013,184,15794  
> > > interval\_89860,Tue Jul 23 15:03:36 IST 2013,177,15070  
> > > interval\_89861,Tue Jul 23 15:03:46 IST 2013,163,9481  
> > > interval\_89862,Tue Jul 23 15:04:02 IST 2013,169,16280  
> > > interval\_89863,Tue Jul 23 15:04:19 IST 2013,163,17147  
> > > interval\_89864,Tue Jul 23 15:04:35 IST 2013,168,15999  
> > > interval\_89865,Tue Jul 23 15:04:52 IST 2013,163,17433  
> > > interval\_89866,Tue Jul 23 15:05:09 IST 2013,183,16752  
> > > interval\_89867,Tue Jul 23 15:05:27 IST 2013,161,17449  
> > > interval\_89868,Tue Jul 23 15:05:45 IST 2013,159,18394  
> > > interval\_89869,Tue Jul 23 15:06:01 IST 2013,165,16189  
> > > interval\_89870,Tue Jul 23 15:06:15 IST 2013,172,13666  
> > > interval\_89871,Tue Jul 23 15:06:30 IST 2013,154,14952  
> > > interval\_89872,Tue Jul 23 15:06:48 IST 2013,192,18600  
> > > interval\_89873,Tue Jul 23 15:07:05 IST 2013,164,16868  
> > > interval\_89874,Tue Jul 23 15:07:24 IST 2013,185,18795  
> > > interval\_89875,Tue Jul 23 15:07:38 IST 2013,145,14194  
> > > interval\_89876,Tue Jul 23 15:08:06 IST 2013,316,28196  
> > > interval\_89877,Tue Jul 23 15:08:31 IST 2013,438,24893  
> > > interval\_89878,Tue Jul 23 15:08:55 IST 2013,330,23150  
> > > interval\_89879,Tue Jul 23 15:09:13 IST 2013,359,18577  
> > > interval\_89880,Tue Jul 23 15:09:25 IST 2013,168,12212  
> > > interval\_89881,Tue Jul 23 15:10:10 IST 2013,174,44907  
> > > interval\_89882,Tue Jul 23 15:10:25 IST 2013,157,14315  
> > > interval\_89889,Tue Jul 23 15:10:34 IST 2013,126,9759  
> > > interval\_89890,Tue Jul 23 15:10:49 IST 2013,142,14245  
> > > interval\_89891,Tue Jul 23 15:11:00 IST 2013,98,11146  
> > > ainterval\_89846,Tue Jul 23 15:11:37 IST 2013,136,37691  
> > > ainterval\_89847,Tue Jul 23 15:11:48 IST 2013,85,10835  
> > > ainterval\_89856,Tue Jul 23 15:12:20 IST 2013,156,32181  
> > > ainterval\_89857,Tue Jul 23 15:12:59 IST 2013,172,38443  
> > > ainterval\_89858,Tue Jul 23 15:13:31 IST 2013,177,32252  
> > > ainterval\_89859,Tue Jul 23 15:14:17 IST 2013,184,45576  
> > > ainterval\_89860,Tue Jul 23 15:14:46 IST 2013,177,29345  
> > > ainterval\_89861,Tue Jul 23 15:15:47 IST 2013,163,61020  
> > > ainterval\_89862,Tue Jul 23 15:17:54 IST 2013,169,127129  
> > > ainterval\_89863,Tue Jul 23 15:36:10 IST 2013,163,1096058
> > > 
> > > --  
> > > You received this message because you are subscribed to the Google Groups  
> > > "elasticsearch" group.  
> > > To unsubscribe from this group and stop receiving emails from it, send an  
> > > email to [elasticsearc...@googlegroups.com](mailto:elasticsearc...@googlegroups.com) \<javascript:\>.  
> > > For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out).

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---

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**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, 2:24am UTC](https://discuss.elastic.co/t/es-hangs-after-some-time/12895/5 "2017-07-06T02:24:38Z")

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