Today we sum up the disk usage for the allocation decider which is broken since
we don't stripe across multiple data paths. Each shard has it's own private path
now but the allocation deciders still treat all paths as one big disk. This commit
adds allows allocation deciders to access the least used and most used path to make
better allocation decidsions upon canRemain and canAllocate calls.
Yet, this commit doesn't fix all the issues since we still can't tell which shard
can remain and which can't. This problem is out of scope in this commit and will be solved
in a followup commit.
Relates to #13106
Previously multiple clusters in the same JVM reused the same port ranges, leading to potential big gaps in port selection, which in turns causes unicast based discovery to fail, missing to find another node in the default 5 port range.
Also the previous logic had http use a range that is assigned to another JVMs.
We default the value to be 20x the value of a ping timeout, however we only use the legacy ping timeout settings value for the calculation.
Closes#13162
This commit removes and now forbids all uses of
com.google.common.collect.Lists across the codebase. This is the first
of many steps in the eventual removal of Guava as a dependency.
lessThanOrEqualTo is more appropriate when comparing _ttl than lessThan
because in rare cases, when tests run very fast, the ttl you fetch will
still equal the one you sent.
Some listeners may need to do work before a shard's path is
accessed (such as creating the directory in a plugin), so the listener
should be called before anything happens (as its name implies).
detect_noop is pretty cheap and noop updates compartively expensive so this
feels like a sensible default.
Also had to do some testing and documentation around how _ttl works with
detect_noop.
Closes#11282
Simon Willnauer
Boaz Leskes
Michael McCandless
Michael McCandless
javanna
Jason Tedor
Igor Motov
Nik Everett
Britta Weber
Ryan Ernst
Lee Hinman
Dan Tuffery