Hi, The checkpoint size is between 8 and 9MB (single section), smaller sizes such as 4MB are ok.
We are still evaluating whether our kernel can support 4.5 - if it can we can try with 4.5 — tony On Oct 16, 2014, at 12:11 AM, A V Mahesh <[email protected]> wrote: > Hi, > >> We’re seeing (4.3.x) MDS timeouts when opening large checkpoint replicas. > How much size ? The #770 ticket has the statistic of Performance with & > without this fix , please cross check with your size with that. > > It always better to test timing issues in the same environment , so I > suggest you ,to reproduce the problem > in your setup with 4.5 ( I will complex to replicate your environment to > confirm ) > > -AVM > > On 10/15/2014 5:09 PM, Tony Hart wrote: >> We’re seeing (4.3.x) MDS timeouts when opening large checkpoint replicas. I >> notice that there was a ticket (770) opened for this which says that it was >> fixed in 4.5. However when I look at the commit for that ticket the >> MAX_SYNC_TRANSFER_SIZE was not changed. Can anyone confirm that the timeout >> problem when transferring replicas has been fixed? >> >> thanks >> — >> tony >> >> #770 >> >> The checkpoint service has some major performance problems when using a lot >> of sections (greater than 5k). >> >> Attached is a patch which addresses the following problems: >> >> 1) section id database is implemented as a linked list, so searching for a >> section id takes a long time (make it a C++ STL map) >> 2) MAX_SYNC_TRANSFER_SIZE is too large, and causes MDS timeouts >> 3) SectionCreate message should be asynchronous when ACTIVE_REPLICA is >> specified >> ------------------------------------------------------------------------------ >> Comprehensive Server Monitoring with Site24x7. >> Monitor 10 servers for $9/Month. >> Get alerted through email, SMS, voice calls or mobile push notifications. >> Take corrective actions from your mobile device. >> http://p.sf.net/sfu/Zoho >> _______________________________________________ >> Opensaf-users mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/opensaf-users > > > ------------------------------------------------------------------------------ > Comprehensive Server Monitoring with Site24x7. > Monitor 10 servers for $9/Month. > Get alerted through email, SMS, voice calls or mobile push notifications. > Take corrective actions from your mobile device. > http://p.sf.net/sfu/Zoho > _______________________________________________ > Opensaf-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/opensaf-users ------------------------------------------------------------------------------ Comprehensive Server Monitoring with Site24x7. Monitor 10 servers for $9/Month. Get alerted through email, SMS, voice calls or mobile push notifications. Take corrective actions from your mobile device. http://p.sf.net/sfu/Zoho _______________________________________________ Opensaf-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/opensaf-users
