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Full Discussion: DAX fallbacks
Operating Systems Solaris DAX fallbacks Post 303020743 by pressy on Thursday 26th of July 2018 12:06:36 PM
Old 07-26-2018
Oracle DAX fallbacks

Hi,

could you explain what DAX fallbacks mean in detail and how to avoid them? Or is it ok to have fallbacks?

Unfortunately googling does not help...



MANpage says: fallbacks == Number of commands completed by the software, which DAX could not complete



OK, but why and what does it mean for the DB?



Running RAC on M7 with InMemory:

1st node=DAX commands 35.608.411 with 18 fallbacks

2nd node=DAX commands 63.563.607 with 2.656.188 fallbacks



Is it just a bad day for the second node? Any ideas how I could dig deeper at OS or DB level?



Thanks in advance and regards

- Martin
 

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load(8) 						      System Manager's Manual							   load(8)

Name
       load - down-line load software to a target node

Syntax
       /etc/load [ node ]

Description
       The command loads software to an unattended target node.  The target node is loaded by the host that executes the command.

       The  command requires the identification of the service circuit over which the load is performed, the Ethernet hardware address of the tar-
       get node, and the service password needed to gain access to the target.	This information is included in the nodes database entry  for  the
       target  node.   A node entry is defined with the command.  For further information, see The node is the name or address of the target node.
       A node name consists of from one to six alphanumeric characters.  For single networks,  a  node	address  consists  of  a  decimal  integer
       (1-1023).   For	multiple  networks,  a	node  address  consist of two decimal integers (n.n), where the first indicates the network number
       (1-63), and the second indicates the node address (1-1023).

Options
       -p   Uses the specified service and password (next arguments) in accessing the target node.  You can omit a target node's service and pass-
	    word from the nodes database for security reasons, but you must then specify the service and password in the command line by using the
	    option.

Examples
       # /etc/load bangor -p 130fe
       This command causes node to be loaded by the ULTRIX host node executing the command.  The ULTRIX host uses the load files specified in  the
       nodes database entry for node to perform the load.

See Also
       addnode(8), ccr(8), getnode(8), mop_mom(8), remnode(8), trigger(8)
       Guide to Local Area Transport Servers

																	   load(8)
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