Cassandra leap second
Is it ok to run this https://blog.mozilla.org/it/2012/06/30/mysql-and-the-leap-second-high-cpu-and-the-fix/ Seeing high cpu consumption for cassandra process
Cassandra leap second
Which version are you running and what's your kernel version? We are still running on 1.2 branch but we have not seen any high cpu usage yet... On Tue, Jun 30, 2015 at 11:10 PM, snair123 . > wrote: > reboot of the machine worked > > -- > From: nair...@outlook.com > > To: user@cassandra.apache.org > > Subject: Cassandra leap second > Date: Wed, 1 Jul 2015 02:54:53 + > > Is it ok to run this > > > https://blog.mozilla.org/it/2012/06/30/mysql-and-the-leap-second-high-cpu-and-the-fix/ > > Seeing high cpu consumption for cassandra process > > > -- Sent from Jeff Dean's printf() mobile console
RE: Cassandra leap second
reboot of the machine worked From: nair...@outlook.com To: user@cassandra.apache.org Subject: Cassandra leap second Date: Wed, 1 Jul 2015 02:54:53 + Is it ok to run this https://blog.mozilla.org/it/2012/06/30/mysql-and-the-leap-second-high-cpu-and-the-fix/ Seeing high cpu consumption for cassandra process
Re: Cassandra leap second
same here too, on branch 1.1 and have not seen any high cpu usage. On Wed, Jul 1, 2015 at 2:52 PM, John Wong wrote: > Which version are you running and what's your kernel version? We are still > running on 1.2 branch but we have not seen any high cpu usage yet... > > On Tue, Jun 30, 2015 at 11:10 PM, snair123 . wrote: > >> reboot of the machine worked >> >> -- >> From: nair...@outlook.com >> To: user@cassandra.apache.org >> Subject: Cassandra leap second >> Date: Wed, 1 Jul 2015 02:54:53 + >> >> Is it ok to run this >> >> >> https://blog.mozilla.org/it/2012/06/30/mysql-and-the-leap-second-high-cpu-and-the-fix/ >> >> Seeing high cpu consumption for cassandra process >> >> >> > > > -- > Sent from Jeff Dean's printf() mobile console >
Re: Cassandra leap second
We also experienced same, i.e. high cpu on Cassandra 1.1.4 node running in AWS. Restarting the vm worked. On Wed, Jul 1, 2015 at 4:58 AM, Jason Wee wrote: > same here too, on branch 1.1 and have not seen any high cpu usage. > > On Wed, Jul 1, 2015 at 2:52 PM, John Wong wrote: > >> Which version are you running and what's your kernel version? We are >> still running on 1.2 branch but we have not seen any high cpu usage yet... >> >> On Tue, Jun 30, 2015 at 11:10 PM, snair123 . wrote: >> >>> reboot of the machine worked >>> >>> -- >>> From: nair...@outlook.com >>> To: user@cassandra.apache.org >>> Subject: Cassandra leap second >>> Date: Wed, 1 Jul 2015 02:54:53 + >>> >>> Is it ok to run this >>> >>> >>> https://blog.mozilla.org/it/2012/06/30/mysql-and-the-leap-second-high-cpu-and-the-fix/ >>> >>> Seeing high cpu consumption for cassandra process >>> >>> >>> >> >> >> -- >> Sent from Jeff Dean's printf() mobile console >> > > -- Narendra Sharma Software Engineer *http://www.aeris.com <http://www.aeris.com>* *http://narendrasharma.blogspot.com/ <http://narendrasharma.blogspot.com/>*
Re: Cassandra leap second
I think it is more a kernel / java version issue than a Cassandra version related issue. >From Datastax: "Leap Second on June 30, 2015 Required Actions: Ensure that you are running on kernel version 3.4 or higher and using JDK version 7u60 or higher. This should protect you from the livelock problems users experienced in 2012." We had recent versions on both things and ran smoothly this night. C*heers 2015-07-01 16:29 GMT+02:00 Narendra Sharma : > We also experienced same, i.e. high cpu on Cassandra 1.1.4 node running in > AWS. Restarting the vm worked. > > On Wed, Jul 1, 2015 at 4:58 AM, Jason Wee wrote: > >> same here too, on branch 1.1 and have not seen any high cpu usage. >> >> On Wed, Jul 1, 2015 at 2:52 PM, John Wong wrote: >> >>> Which version are you running and what's your kernel version? We are >>> still running on 1.2 branch but we have not seen any high cpu usage yet... >>> >>> On Tue, Jun 30, 2015 at 11:10 PM, snair123 . >>> wrote: >>> >>>> reboot of the machine worked >>>> >>>> -- >>>> From: nair...@outlook.com >>>> To: user@cassandra.apache.org >>>> Subject: Cassandra leap second >>>> Date: Wed, 1 Jul 2015 02:54:53 + >>>> >>>> Is it ok to run this >>>> >>>> >>>> https://blog.mozilla.org/it/2012/06/30/mysql-and-the-leap-second-high-cpu-and-the-fix/ >>>> >>>> Seeing high cpu consumption for cassandra process >>>> >>>> >>>> >>> >>> >>> -- >>> Sent from Jeff Dean's printf() mobile console >>> >> >> > > > -- > Narendra Sharma > Software Engineer > *http://www.aeris.com <http://www.aeris.com>* > *http://narendrasharma.blogspot.com/ <http://narendrasharma.blogspot.com/>* > >
Re: Cassandra leap second
Here is the full Datastax article: http://www.datastax.com/dev/blog/preparing-for-the-leap-second We had issues with C* and MySQL last time around (2012) but no issues this time thanks to upgraded systems. On 1 July 2015 at 14:39, Alain RODRIGUEZ wrote: > I think it is more a kernel / java version issue than a Cassandra version > related issue. > > From Datastax: > > "Leap Second on June 30, 2015 > > Required Actions: > > Ensure that you are running on kernel version 3.4 or higher and using JDK > version 7u60 or higher. This should protect you from the livelock problems > users experienced in 2012." > > We had recent versions on both things and ran smoothly this night. > > C*heers > > > > 2015-07-01 16:29 GMT+02:00 Narendra Sharma : > >> We also experienced same, i.e. high cpu on Cassandra 1.1.4 node running >> in AWS. Restarting the vm worked. >> >> On Wed, Jul 1, 2015 at 4:58 AM, Jason Wee wrote: >> >>> same here too, on branch 1.1 and have not seen any high cpu usage. >>> >>> On Wed, Jul 1, 2015 at 2:52 PM, John Wong wrote: >>> >>>> Which version are you running and what's your kernel version? We are >>>> still running on 1.2 branch but we have not seen any high cpu usage yet... >>>> >>>> On Tue, Jun 30, 2015 at 11:10 PM, snair123 . >>>> wrote: >>>> >>>>> reboot of the machine worked >>>>> >>>>> -- >>>>> From: nair...@outlook.com >>>>> To: user@cassandra.apache.org >>>>> Subject: Cassandra leap second >>>>> Date: Wed, 1 Jul 2015 02:54:53 + >>>>> >>>>> Is it ok to run this >>>>> >>>>> >>>>> https://blog.mozilla.org/it/2012/06/30/mysql-and-the-leap-second-high-cpu-and-the-fix/ >>>>> >>>>> Seeing high cpu consumption for cassandra process >>>>> >>>>> >>>>> >>>> >>>> >>>> -- >>>> Sent from Jeff Dean's printf() mobile console >>>> >>> >>> >> >> >> -- >> Narendra Sharma >> Software Engineer >> *http://www.aeris.com <http://www.aeris.com>* >> *http://narendrasharma.blogspot.com/ >> <http://narendrasharma.blogspot.com/>* >> >> >
