Database - RAC/Scalability (MOSC)

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Some multipath questions

edited Sep 10, 2014 5:01AM in Database - RAC/Scalability (MOSC) 3 commentsAnswered

We run Oracle RAC version 11.2.0.3 on Red Hat Linux 6. Our multipath.conf has

no_path_retry fail

features      "1 queue_if_no_path"

According to

/usr/share/doc/device-mapper-multipath-0.4.9/multipath.conf.annotated

# name    : features

# scope   : multipath

# desc    : The default extra features of multipath devices. The

#           only existing feature currently is queue_if_no_path, which

#           is the same as setting no_path_retry to queue.

# values  : "1 queue_if_no_path"

# default : (null)

#

features        "1 queue_if_no_path"

apparently, no_path_retry set to "fail" conflicts with queue_if_no_path set to 1. Correct? I'll change the latter to 0. As is now, which of the two params takes precedence? The answer would help me with root cause analysis on past failures.

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