I joined MongoDB in June 2015 and will be sharing hands-on information on how to make this technology work for you.
Prior to that I worked for MySQL/Sun/Oracle in product management for MySQL High Availability solutuions such as MySQL Cluster, MySQL Replication, MySQL Fabric, MySQL Group Replication and MySQL Router.
I started my career with Nortel (technically BNR which was the R&D arm of Northern Telecom but everything later got merged and rebranded as Nortel). I was responsible for writing the original proprietary, in-memory database for Nortel’s HLR product. Later on, we used a number of 3rd party databases for the HLR (provisioning rather than real-time) and then HSS – starting with Oracle for the HLR and then SOLID but then settling on MySQL Cluster as the scaleable real-time database for the HSS.
I have issues:
Connect to MySQL Cluster Manager by running “/home/pedro/mysql-mcm/mcm1.2.4/bin/mcm” -a eletron:1862
Configuring default cluster ‘mycluster’…
ERROR: Unable to create site, aborting bootstrap!
ERROR 2004: (00MGR) Host eletron is not a member of site mysite
Helpe-me please! Thank you!
Could you tell me what command you ran? What platform was this on?
Andrew.
Andrew,
I’m working on a new project that requires clustered MySQL with capability of geographic redundancy. Who would you recommend for engaging consulting services? This in in Virginia.
Thanks,
Trevor
Hi Trevor,
I’d recommend getting the consultancy from the MySQL team… http://www.mysql.com/consulting/
Disclaimer – they are also my employer!
Best Regards, Andrew.
I have an issue with our mysql ndb cluster. Always throwing an error node x disconnected and Lost arbitrator node 1 – process failure [state=6].Could you please help me to resolve these issues. Is it related to network outage ?
2015-11-18 09:50:18 [MgmtSrvr] ALERT — Node 1: Node 2 Disconnected
2015-11-18 09:50:18 [MgmtSrvr] ALERT — Node 1: Node 3 Disconnected
2015-11-18 09:50:18 [MgmtSrvr] ALERT — Node 1: Node 31 Disconnected
2015-11-18 09:50:19 [MgmtSrvr] INFO — Node 1: Node 2 Connected
2015-11-18 09:50:19 [MgmtSrvr] INFO — Node 1: Node 31 Connected
2015-11-18 09:50:19 [MgmtSrvr] INFO — Node 1: Node 3 Connected
2015-11-18 09:50:20 [MgmtSrvr] INFO — Node 31: Prepare arbitrator node 1
[ticket=0b2700480bcc2992]
2015-11-18 09:50:20 [MgmtSrvr] INFO — Node 3: Prepare arbitrator node 1
[ticket=0b2700480bcc2992]
2015-11-18 09:50:20 [MgmtSrvr] INFO — Node 2: Started arbitrator node 1
[ticket=0b2700480bcc2992]
2015-11-18 09:50:53 [MgmtSrvr] INFO — Node 7: Event buffer status:
used=56KB(7%) alloc=708KB(0%) max=0B apply_epoch=12673679/9
latest_epoch=12673679/12
2015-11-18 09:51:05 [MgmtSrvr] INFO — Node 7: Event buffer status:
used=1148B(10%) alloc=10816B(0%) max=0B apply_epoch=12673679/9
latest_epoch=12673679/12
2015-11-18 09:51:05 [MgmtSrvr] ALERT — Node 1: Node 2 Disconnected
2015-11-18 09:51:05 [MgmtSrvr] ALERT — Node 1: Node 3 Disconnected
2015-11-18 09:51:05 [MgmtSrvr] ALERT — Node 1: Node 31 Disconnected
2015-11-18 09:51:05 [MgmtSrvr] INFO — Node 1: Node 2 Connected
2015-11-18 09:51:05 [MgmtSrvr] INFO — Node 1: Node 31 Connected
2015-11-18 09:51:07 [MgmtSrvr] INFO — Node 1: Node 3 Connected
2015-11-18 09:51:07 [MgmtSrvr] INFO — Node 31: Prepare arbitrator node 1
[ticket=0b2700490bccdebc]
2015-11-18 09:51:14 [MgmtSrvr] ALERT — Node 1: Node 2 Disconnected
2015-11-18 09:51:15 [MgmtSrvr] ALERT — Node 1: Node 3 Disconnected
2015-11-18 09:51:15 [MgmtSrvr] ALERT — Node 1: Node 31 Disconnected
2015-11-18 09:51:15 [MgmtSrvr] WARNING — Failed to convert connection from
‘192.168.10.154:34098’ to transporter: line: 548 : Incorrect state for node 3
state: does nothing (2)
2015-11-18 09:51:15 [MgmtSrvr] INFO — Node 1: Node 3 Connected
2015-11-18 09:51:16 [MgmtSrvr] INFO — Node 1: Node 31 Connected
2015-11-18 09:51:16 [MgmtSrvr] INFO — Node 1: Node 2 Connected