# In jmv gc log message, what are two numbers after \[gc\]\[old\] and before duration? **URL:** \ **Category:** Elasticsearch\ **Created:** [January 19, 2015, 7:10pm UTC](https://discuss.elastic.co/t/in-jmv-gc-log-message-what-are-two-numbers-after-gc-old-and-before-duration/21717 "2015-01-19T19:10:52Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Jinyuan\_Zhou](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jinyuan_zhou/32/90185_2.png) [@Jinyuan\_Zhou](https://discuss.elastic.co/u/Jinyuan_Zhou)\ **Post date:** [January 19, 2015, 7:10pm UTC](https://discuss.elastic.co/t/in-jmv-gc-log-message-what-are-two-numbers-after-gc-old-and-before-duration/21717/1 "2015-01-19T19:10:52Z")
Hi, I copied this log message from some postings. there two numbers between [gc][old] and duration: _[155221][169]_. What are they? 2014-04-16 16:32:57,505][WARN][monitor.jvm] [elasticsearch2. trend1] [gc][old]\*[**15221**]\*\*[\*_169]_ duration [1.3m], collections [1]/[ 1.3m], total [1.3m]/[12.6m], memory [29.1gb]-\>[25.4gb]/[29.9gb], all\_pools {[young][25mb]-\>[194.1mb]/[665.6mb]}{[survivor] [36.3mb]-\>[0b]/[83.1mb]}{[ old] [29gb]-\>[25.2gb]/[29.1gb] Thanks, -- 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 [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/c1965379-7d61-4fcf-bf6c-8c71599096ca%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/c1965379-7d61-4fcf-bf6c-8c71599096ca%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![Jinyuan\_Zhou](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jinyuan_zhou/32/90185_2.png) [@Jinyuan\_Zhou](https://discuss.elastic.co/u/Jinyuan_Zhou)\ **Post date:** [January 20, 2015, 10:11pm UTC](https://discuss.elastic.co/t/in-jmv-gc-log-message-what-are-two-numbers-after-gc-old-and-before-duration/21717/2 "2015-01-20T22:11:43Z")
I figured out that second number 169 is number of old gc events by run jstat -gcold . But still don't know the first number:15221. Jinyuan (Jack) Zhou On Mon, Jan 19, 2015 at 11:10 AM, Jinyuan Zhou [zhou.jinyuan@gmail.com](mailto:zhou.jinyuan@gmail.com) wrote: > Hi, > I copied this log message from some postings. there two numbers between > [gc][old] and duration: _[155221][169]_. What are they? > > 2014-04-16 16:32:57,505][WARN][monitor.jvm] [elasticsearch2 > .trend1] [gc][old]\*[**15221**]\*\*[\*_169]_ duration [1.3m], collections [1 > ]/[1.3m], total [1.3m]/[12.6m], memory [29.1gb]-\>[25.4gb]/[29.9gb], > all\_pools {[young][25mb]-\>[194.1mb]/[665.6mb]}{[survivor] [36.3mb]-\>[0b > ]/[83.1mb]}{[old] [29gb]-\>[25.2gb]/[29.1gb] > > Thanks, > > -- > You received this message because you are subscribed to a topic in the > Google Groups "elasticsearch" group. > To unsubscribe from this topic, visit > [https://groups.google.com/d/topic/elasticsearch/rH2X-nBXzlI/unsubscribe](https://groups.google.com/d/topic/elasticsearch/rH2X-nBXzlI/unsubscribe). > To unsubscribe from this group and all its topics, send an email to > [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). > To view this discussion on the web visit > [https://groups.google.com/d/msgid/elasticsearch/c1965379-7d61-4fcf-bf6c-8c71599096ca%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/c1965379-7d61-4fcf-bf6c-8c71599096ca%40googlegroups.com) > [https://groups.google.com/d/msgid/elasticsearch/c1965379-7d61-4fcf-bf6c-8c71599096ca%40googlegroups.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/c1965379-7d61-4fcf-bf6c-8c71599096ca%40googlegroups.com?utm_medium=email&utm_source=footer) > . > For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). -- 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 [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/CANBTPCHVO9J7xG2m0tXGx5f%2B6RZYHbN\_MZGBhcdu7Ewz8kZfSQ%40mail.gmail.com](https://groups.google.com/d/msgid/elasticsearch/CANBTPCHVO9J7xG2m0tXGx5f%2B6RZYHbN_MZGBhcdu7Ewz8kZfSQ%40mail.gmail.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**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, 12:37am UTC](https://discuss.elastic.co/t/in-jmv-gc-log-message-what-are-two-numbers-after-gc-old-and-before-duration/21717/3 "2017-07-06T00:37:39Z")