Database - RAC/Scalability (MOSC)

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Server load high on rac node1

edited May 6, 2014 10:53AM in Database - RAC/Scalability (MOSC) 13 comments

Hi Experts,

Two node RAC 11.2.0.4. I always notice load on node1 server more than the node2. Node1 does more memory swapping compared to node2. This has become bit of worry as node1 load goes very high sometimes. Shouldn't the load be balancing across both nodes?

OS- OEL 6

[oracle]$ uname -r

2.6.39-400.209.1.el6uek.x86_64

Node-1

top - 09:09:31 up 208 days, 20:44,  6 users,  load average: 5.85, 5.18, 5.00

Node-2

top - 09:10:01 up 90 days, 21:40,  4 users,  load average: 3.34, 2.85, 2.21

[oracle@db1]$  free -m

             total       used       free     shared    buffers     cached

Mem:        129154     127906       1247          0         16     108402

-/+ buffers/cache:      19488     109665

Swap:        16483      10328       6155

[oracle@db2]$  free -m

             total       used       free     shared    buffers     cached

Mem:        129154     126784       2370          0        115     107166

-/+ buffers/cache:      19502     109651

Swap:        16483       7277       9206

[oracle@db1]$ vmstat 10 10

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