# Error with JDK **URL:** \ **Category:** Logstash\ **Created:** [June 29, 2018, 2:08pm UTC](https://discuss.elastic.co/t/error-with-jdk/137984 "2018-06-29T14:08:20Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![sunil1](https://avatars.discourse-cdn.com/v4/letter/s/51bf81/32.png) [@sunil1](https://discuss.elastic.co/u/sunil1)\ **Post date:** [June 29, 2018, 2:08pm UTC](https://discuss.elastic.co/t/error-with-jdk/137984/1 "2018-06-29T14:08:21Z")
OpenJDK 64-Bit Server VM warning: If the number of processors is expected to increase from one, then you should configure the number of parallel GC threads appropriately using -XX:ParallelGCThreads=N OpenJDK 64-Bit Server VM warning: INFO: os::commit\_memory(0x00000000c5330000, 986513408, 0) failed; error='Cannot allocate memory' (errno=12) # # There is insufficient memory for the Java Runtime Environment to continue. # Native memory allocation (mmap) failed to map 986513408 bytes for committing reserved memory. # An error report file with more information is saved as: # /usr/share/logstash/bin/hs\_err\_pid39969.log [sunil@localhost bin]$ ---
**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:** [June 29, 2018, 9:44pm UTC](https://discuss.elastic.co/t/error-with-jdk/137984/2 "2018-06-29T21:44:30Z")
How much heap did you give Logstash, how much does the host have. Also, please don't just post a log file and expect people to assist you. You need to explain what you are doing as well. ---
**Author:** ![sunil1](https://avatars.discourse-cdn.com/v4/letter/s/51bf81/32.png) [@sunil1](https://discuss.elastic.co/u/sunil1)\ **Post date:** [June 30, 2018, 5:50pm UTC](https://discuss.elastic.co/t/error-with-jdk/137984/3 "2018-06-30T17:50:04Z")
How to set heap and all? ---
**Author:** ![sunil1](https://avatars.discourse-cdn.com/v4/letter/s/51bf81/32.png) [@sunil1](https://discuss.elastic.co/u/sunil1)\ **Post date:** [July 1, 2018, 10:11am UTC](https://discuss.elastic.co/t/error-with-jdk/137984/4 "2018-07-01T10:11:05Z")
HI team, Anyone can help on this issue? ---
**Author:** ![magnusbaeck](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/magnusbaeck/32/44943_2.png) [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)\ **Post date:** [July 2, 2018, 7:08am UTC](https://discuss.elastic.co/t/error-with-jdk/137984/5 "2018-07-02T07:08:23Z")
> Anyone can help on this issue? If you want help then answer the questions Mark had. ---
**Author:** ![sunil1](https://avatars.discourse-cdn.com/v4/letter/s/51bf81/32.png) [@sunil1](https://discuss.elastic.co/u/sunil1)\ **Post date:** [July 2, 2018, 7:22am UTC](https://discuss.elastic.co/t/error-with-jdk/137984/6 "2018-07-02T07:22:39Z")
/proc/meminfo: MemTotal: 3863544 kB MemFree: 130900 kB MemAvailable: 110916 kB Buffers: 40 kB Cached: 119636 kB ---
**Author:** ![sunil1](https://avatars.discourse-cdn.com/v4/letter/s/51bf81/32.png) [@sunil1](https://discuss.elastic.co/u/sunil1)\ **Post date:** [July 2, 2018, 12:29pm UTC](https://discuss.elastic.co/t/error-with-jdk/137984/7 "2018-07-02T12:29:32Z")
-Xms1g -Xmx1g ---
**Author:** ![magnusbaeck](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/magnusbaeck/32/44943_2.png) [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)\ **Post date:** [July 2, 2018, 12:31pm UTC](https://discuss.elastic.co/t/error-with-jdk/137984/8 "2018-07-02T12:31:29Z")
4 GB RAM should be okay for a 1 GB Java heap, but I guess it depends on what else is running on the system. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 30, 2018, 12:31pm UTC](https://discuss.elastic.co/t/error-with-jdk/137984/9 "2018-07-30T12:31:42Z")
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