# Logstash5.5.0 Out of memory issue

**URL:** <https://discuss.elastic.co/t/logstash5-5-0-out-of-memory-issue/99934>\
**Category:** Logstash\
**Created:** [September 9, 2017, 2:48pm UTC](https://discuss.elastic.co/t/logstash5-5-0-out-of-memory-issue/99934 "2017-09-09T14:48:43Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Hoffin\_Ag](https://avatars.discourse-cdn.com/v4/letter/h/ba8739/32.png) [@Hoffin\_Ag](https://discuss.elastic.co/u/Hoffin_Ag)\
**Post date:** [September 9, 2017, 2:48pm UTC](https://discuss.elastic.co/t/logstash5-5-0-out-of-memory-issue/99934/1 "2017-09-09T14:48:43Z")

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Hi,  
ELK is a great tool for advanced analytics on huge data.

we are using ELK 5.5.0 version.

When we run the logstash it is continuously crashing every minute on 1 gb of data import

sample logstash.conf File

input{  
jdbc {  
type =\> "type1"  
jdbc\_driver\_library =\> "mysql-connector-java-5.1.35"  
jdbc\_driver\_class =\> "com.mysql.jdbc.Driver"  
jdbc\_connection\_string =\> "jdbc:mysql://ip:port/schema"  
jdbc\_user =\> "user"  
jdbc\_password =\> "password"  
jdbc\_paging\_enabled =\> "true"  
lowercase\_column\_names =\> "false"  
jdbc\_fetch\_size =\> 1000  
schedule =\> "1 \* \* \* \* \*"  
last\_run\_metadata\_path =\> "lastrunfile"  
statement\_filepath =\> "sql1"  
}  
jdbc {  
type =\> "type2"  
jdbc\_driver\_library =\> "mysql-connector-java-5.1.35"  
jdbc\_driver\_class =\> "com.mysql.jdbc.Driver"  
jdbc\_connection\_string =\> "jdbc:mysql://ip:port/schema"  
jdbc\_user =\> "user"  
jdbc\_password =\> "pwd"  
jdbc\_paging\_enabled =\> "true"  
lowercase\_column\_names =\> "false"  
jdbc\_fetch\_size =\> 1000  
schedule =\> "1 \* \* \* \* \*"  
last\_run\_metadata\_path =\> "lastrunpath"  
statement\_filepath =\> "sql2"  
}  
}  
output {  
if [type] == "type1" {  
elasticsearch {  
hosts =\> ["ip:port"]  
manage\_template =\> false  
index =\> "index1"  
document\_id =\> "%{doc\_id}"  
}  
}  
if [type] == "type2" {  
elasticsearch {  
hosts =\> ["ip:port"]  
manage\_template =\> false  
index =\> "index2"  
document\_id =\> "%{doc\_id}"  
}  
}  
}

Anything is problem in the config. and also provided xmx option to 2gb, but still crashing not able to create indexes only

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<div class="post-metadata">

**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\
**Post date:** [September 9, 2017, 9:31pm UTC](https://discuss.elastic.co/t/logstash5-5-0-out-of-memory-issue/99934/2 "2017-09-09T21:31:38Z")

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FYI we’ve renamed ELK to the Elastic Stack, otherwise Beats feels left out 😉

Try reducing `jdbc_fetch_size`?

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<div class="post-metadata">

**Author:** ![Hoffin\_Ag](https://avatars.discourse-cdn.com/v4/letter/h/ba8739/32.png) [@Hoffin\_Ag](https://discuss.elastic.co/u/Hoffin_Ag)\
**Post date:** [September 10, 2017, 3:27am UTC](https://discuss.elastic.co/t/logstash5-5-0-out-of-memory-issue/99934/3 "2017-09-10T03:27:34Z")

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Let me try with Reduced fetch size.  
Thank you 😀

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<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:** [October 8, 2017, 3:27am UTC](https://discuss.elastic.co/t/logstash5-5-0-out-of-memory-issue/99934/4 "2017-10-08T03:27:58Z")

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