About LMX tunable parameters
LMX tunable parameters describes tunable parameters for the LMX driver.
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LMX Parameter
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Description
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Default Value
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Maximum Value
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lmx_minor_max
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Specifies the maximum number of contexts system-wide. Each Oracle process typically has two LMX contexts.
"Contexts" and "minors" are used interchangeably in the documentation; "context" is an Oracle-specific term to specify the value in the lmx.conf file.
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8192
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65535
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lmx_port_max
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Specifies the number of communication endpoints for transferring messages from the sender to receiver in a uni-directional manner.
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4096
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65535
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lmx_buffer_max
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Specifies the number of addressable regions in memory to copy LMX data.
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4096
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65535
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If you see the message "no minors available" on one node, add a configuration parameter that increases the value for the maximum number of contexts. (While the "minors" term appears in the error message, use the "contexts" term in the configuration file.) Increasing the number of contexts on a node has some impact on the resources of that node.
See Configuring the module parameters
