Hi
I was trying to do some tests in my lab using MySQL Cluster. I am using 2 servers each with 2 mgmt nodes, 2 storage nodes, and 2 sql nodes.
When checked using SHOW in ndb_mgm, it shows all 6 nodes connected and running.
But in the file ndb_*_out.log, I see errors like these below consistently appearing:
jbalock thr: 2 waiting for lock, contentions: 1800 spins: 21175
send lock node 6 waiting for lock, contentions: 6 spins: 2883
sendbufferpool waiting for lock, contentions: 15 spins: 1226
In my test currently, I have hardly any data.
Interestingly, these errors do not come if I use ndbd instead of ndbmtd.
Anyone has any idea about why these errors are coming ?
Thanks
I was trying to do some tests in my lab using MySQL Cluster. I am using 2 servers each with 2 mgmt nodes, 2 storage nodes, and 2 sql nodes.
When checked using SHOW in ndb_mgm, it shows all 6 nodes connected and running.
But in the file ndb_*_out.log, I see errors like these below consistently appearing:
jbalock thr: 2 waiting for lock, contentions: 1800 spins: 21175
send lock node 6 waiting for lock, contentions: 6 spins: 2883
sendbufferpool waiting for lock, contentions: 15 spins: 1226
In my test currently, I have hardly any data.
Interestingly, these errors do not come if I use ndbd instead of ndbmtd.
Anyone has any idea about why these errors are coming ?
Thanks