Just a shot in the dark, but what is your setting of vm.max_map_count in /etc/sysctl.conf ?
It is recommended to set it to: vm.max_map_count = 1048575 Source: https://docs.datastax.com/en/landing_page/doc/landing_page/recommendedSettingsLinux.html We saw a similar problem in the past where mmap failed and we added a check to emit warning as a part of https://issues.apache.org/jira/browse/CASSANDRA-13008. On Wed, Mar 22, 2017 at 9:57 AM, Thakrar, Jayesh < jthak...@conversantmedia.com> wrote: > Is/are the Cassandra server(s) shared? > > E.g. do they run mesos + spark? > > > > *From: *Abhishek Kumar Maheshwari <abhishek.maheshw...@timesinternet.in> > *Date: *Wednesday, March 22, 2017 at 12:45 AM > *To: *"user@cassandra.apache.org" <user@cassandra.apache.org> > *Subject: *[Cassandra 3.0.9] Cannot allocate memory > > > > Hi all, > > > > I am using Cassandra 3.0.9. while I am adding new server after some time I > am getting below exception. JVM option is attaches. > > Hardware info: > > Ram 64 GB. > > Core: 40 > > > > > > Java HotSpot(TM) 64-Bit Server VM warning: INFO: > os::commit_memory(0x00007fe9c44ee000, > 12288, 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 12288 bytes for committing > reserved memory. > > Java HotSpot(TM) 64-Bit Server VM warning: INFO: > os::commit_memory(0x00007f5c056ab000, > 12288, 0) failed; error='Cannot allocate memory' (errno=12) > > [thread 140033204860672 also had an error] > > Java HotSpot(TM) 64-Bit Server VM warning: INFO: > os::commit_memory(0x00007f5c0566a000, > 12288, 0) failed; error='Cannot allocate memory' (errno=12) > > [thread 140033204594432 also had an error]Java HotSpot(TM) 64-Bit Server > VM warning: > > INFO: os::commit_memory(0x00007fe9c420c000, 12288, 0) failed; > error='Cannot allocate memory' (errno=12) > > Java HotSpot(TM) 64-Bit Server VM warning: [thread 140641994852096 also > had an error]INFO: os::commit_memory(0x00007f5c055a7000, 12288, 0) > failed; error='Cannot allocate memory' (errno=12) > > > > Please let me know what I miss? > > > > *Thanks & Regards,* > *Abhishek Kumar Maheshwari* > *+91- 9999805591 <+91%2099998%2005591> (Mobile)* > > Times Internet Ltd. | A Times of India Group Company > > FC - 6, Sector 16A, Film City, Noida, U.P. 201301 | INDIA > > *P** Please do not print this email unless it is absolutely necessary. > Spread environmental awareness.* > > > > YES Bank & The Economic Times Global Business Summit (GBS) is back on > 27-28 March. The 3rd edition of GBS will see participation of 2000+ > delegates from over 20 countries as they bear witness to leaders sharing > insights into how to best navigate a dynamic future. Visit www.et-gbs.com >
