clone: make sure we warm the cache after a clone
This work around any deviciency/limitation of the clone process. In our case
this ensure the persistent nodemap exist with valid content.
Ideally, the cloning process would also do "the right thing". However since
older server will never be able to do "the right thing". The local workaround
will be necessary anyway.
I am not worried by the performance impact of this as `hg clone` is non-instant
on large repositories where is could matters. Warming the cache if they are
already correct is very fast. And if they are not already warm, this seems like
a good time to do so.
This impact various test as more cache are now warmed sooner, all the change
should be harmless.
Differential Revision: https://phab.mercurial-scm.org/D9789
Function to test discovery between two repos in both directions, using both the local shortcut
(which is currently not activated by default) and the full remotable protocol:
$ testdesc() { # revs_a, revs_b, dagdesc
> if [ -d foo ]; then rm -rf foo; fi
> hg init foo
> cd foo
> hg debugbuilddag "$3"
> hg clone . a $1 --quiet
> hg clone . b $2 --quiet
> echo
> echo "% -- a -> b tree"
> hg -R a debugdiscovery b --verbose --old
> echo
> echo "% -- a -> b set"
> hg -R a debugdiscovery b --verbose --debug --config progress.debug=true
> echo
> echo "% -- a -> b set (tip only)"
> hg -R a debugdiscovery b --verbose --debug --config progress.debug=true --rev tip
> echo
> echo "% -- b -> a tree"
> hg -R b debugdiscovery a --verbose --old
> echo
> echo "% -- b -> a set"
> hg -R b debugdiscovery a --verbose --debug --config progress.debug=true
> echo
> echo "% -- b -> a set (tip only)"
> hg -R b debugdiscovery a --verbose --debug --config progress.debug=true --rev tip
> cd ..
> }
Small superset:
$ testdesc '-ra1 -ra2' '-rb1 -rb2 -rb3' '
> +2:f +1:a1:b1
> <f +4 :a2
> +5 :b2
> <f +3 :b3'
% -- a -> b tree
comparing with b
searching for changes
unpruned common: 01241442b3c2 66f7d451a68b b5714e113bc0
elapsed time: * seconds (glob)
round-trips: 2
heads summary:
total common heads: 2
also local heads: 2
also remote heads: 1
both: 1
local heads: 2
common: 2
missing: 0
remote heads: 3
common: 1
unknown: 2
local changesets: 7
common: 7
heads: 2
roots: 1
missing: 0
heads: 0
roots: 0
first undecided set: 3
heads: 1
roots: 1
common: 3
missing: 0
common heads: 01241442b3c2 b5714e113bc0
% -- a -> b set
comparing with b
query 1; heads
searching for changes
all local changesets known remotely
elapsed time: * seconds (glob)
round-trips: 1
heads summary:
total common heads: 2
also local heads: 2
also remote heads: 1
both: 1
local heads: 2
common: 2
missing: 0
remote heads: 3
common: 1
unknown: 2
local changesets: 7
common: 7
heads: 2
roots: 1
missing: 0
heads: 0
roots: 0
first undecided set: 3
heads: 1
roots: 1
common: 3
missing: 0
common heads: 01241442b3c2 b5714e113bc0
% -- a -> b set (tip only)
comparing with b
query 1; heads
searching for changes
all local changesets known remotely
elapsed time: * seconds (glob)
round-trips: 1
heads summary:
total common heads: 1
also local heads: 1
also remote heads: 0
both: 0
local heads: 2
common: 1
missing: 1
remote heads: 3
common: 0
unknown: 3
local changesets: 7
common: 6
heads: 1
roots: 1
missing: 1
heads: 1
roots: 1
first undecided set: 6
heads: 2
roots: 1
common: 5
missing: 1
common heads: b5714e113bc0
% -- b -> a tree
comparing with a
searching for changes
unpruned common: 01241442b3c2 b5714e113bc0
elapsed time: * seconds (glob)
round-trips: 1
heads summary:
total common heads: 2
also local heads: 1
also remote heads: 2
both: 1
local heads: 3
common: 1
missing: 2
remote heads: 2
common: 2
unknown: 0
local changesets: 15
common: 7
heads: 2
roots: 1
missing: 8
heads: 2
roots: 2
first undecided set: 8
heads: 2
roots: 2
common: 0
missing: 8
common heads: 01241442b3c2 b5714e113bc0
% -- b -> a set
comparing with a
query 1; heads
searching for changes
all remote heads known locally
elapsed time: * seconds (glob)
round-trips: 1
heads summary:
total common heads: 2
also local heads: 1
also remote heads: 2
both: 1
local heads: 3
common: 1
missing: 2
remote heads: 2
common: 2
unknown: 0
local changesets: 15
common: 7
heads: 2
roots: 1
missing: 8
heads: 2
roots: 2
first undecided set: 8
heads: 2
roots: 2
common: 0
missing: 8
common heads: 01241442b3c2 b5714e113bc0
% -- b -> a set (tip only)
comparing with a
query 1; heads
searching for changes
all remote heads known locally
elapsed time: * seconds (glob)
round-trips: 1
heads summary:
total common heads: 2
also local heads: 1
also remote heads: 2
both: 1
local heads: 3
common: 1
missing: 2
remote heads: 2
common: 2
unknown: 0
local changesets: 15
common: 7
heads: 2
roots: 1
missing: 8
heads: 2
roots: 2
first undecided set: 8
heads: 2
roots: 2
common: 0
missing: 8
common heads: 01241442b3c2 b5714e113bc0
Many new:
$ testdesc '-ra1 -ra2' '-rb' '
> +2:f +3:a1 +3:b
> <f +30 :a2'
% -- a -> b tree
comparing with b
searching for changes
unpruned common: bebd167eb94d
elapsed time: * seconds (glob)
round-trips: 2
heads summary:
total common heads: 1
also local heads: 1
also remote heads: 0
both: 0
local heads: 2
common: 1
missing: 1
remote heads: 1
common: 0
unknown: 1
local changesets: 35
common: 5
heads: 1
roots: 1
missing: 30
heads: 1
roots: 1
first undecided set: 34
heads: 2
roots: 1
common: 4
missing: 30
common heads: bebd167eb94d
% -- a -> b set
comparing with b
query 1; heads
searching for changes
taking initial sample
searching: 2 queries
query 2; still undecided: 29, sample size is: 29
2 total queries in *.????s (glob)
elapsed time: * seconds (glob)
round-trips: 2
heads summary:
total common heads: 1
also local heads: 1
also remote heads: 0
both: 0
local heads: 2
common: 1
missing: 1
remote heads: 1
common: 0
unknown: 1
local changesets: 35
common: 5
heads: 1
roots: 1
missing: 30
heads: 1
roots: 1
first undecided set: 34
heads: 2
roots: 1
common: 4
missing: 30
common heads: bebd167eb94d
% -- a -> b set (tip only)
comparing with b
query 1; heads
searching for changes
taking quick initial sample
searching: 2 queries
query 2; still undecided: 31, sample size is: 31
2 total queries in *.????s (glob)
elapsed time: * seconds (glob)
round-trips: 2
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 2
common: 0
missing: 2
remote heads: 1
common: 0
unknown: 1
local changesets: 35
common: 2
heads: 1
roots: 1
missing: 33
heads: 2
roots: 2
first undecided set: 35
heads: 2
roots: 1
common: 2
missing: 33
common heads: 66f7d451a68b
% -- b -> a tree
comparing with a
searching for changes
unpruned common: 66f7d451a68b bebd167eb94d
elapsed time: * seconds (glob)
round-trips: 4
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 1
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 2
common: 1
unknown: 1
local changesets: 8
common: 5
heads: 1
roots: 1
missing: 3
heads: 1
roots: 1
first undecided set: 3
heads: 1
roots: 1
common: 0
missing: 3
common heads: bebd167eb94d
% -- b -> a set
comparing with a
query 1; heads
searching for changes
taking initial sample
searching: 2 queries
query 2; still undecided: 2, sample size is: 2
2 total queries in *.????s (glob)
elapsed time: * seconds (glob)
round-trips: 2
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 1
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 2
common: 1
unknown: 1
local changesets: 8
common: 5
heads: 1
roots: 1
missing: 3
heads: 1
roots: 1
first undecided set: 3
heads: 1
roots: 1
common: 0
missing: 3
common heads: bebd167eb94d
% -- b -> a set (tip only)
comparing with a
query 1; heads
searching for changes
taking initial sample
searching: 2 queries
query 2; still undecided: 2, sample size is: 2
2 total queries in *.????s (glob)
elapsed time: * seconds (glob)
round-trips: 2
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 1
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 2
common: 1
unknown: 1
local changesets: 8
common: 5
heads: 1
roots: 1
missing: 3
heads: 1
roots: 1
first undecided set: 3
heads: 1
roots: 1
common: 0
missing: 3
common heads: bebd167eb94d
Both sides many new with stub:
$ testdesc '-ra1 -ra2' '-rb' '
> +2:f +2:a1 +30 :b
> <f +30 :a2'
% -- a -> b tree
comparing with b
searching for changes
unpruned common: 2dc09a01254d
elapsed time: * seconds (glob)
round-trips: 4
heads summary:
total common heads: 1
also local heads: 1
also remote heads: 0
both: 0
local heads: 2
common: 1
missing: 1
remote heads: 1
common: 0
unknown: 1
local changesets: 34
common: 4
heads: 1
roots: 1
missing: 30
heads: 1
roots: 1
first undecided set: 33
heads: 2
roots: 1
common: 3
missing: 30
common heads: 2dc09a01254d
% -- a -> b set
comparing with b
query 1; heads
searching for changes
taking initial sample
searching: 2 queries
query 2; still undecided: 29, sample size is: 29
2 total queries in *.????s (glob)
elapsed time: * seconds (glob)
round-trips: 2
heads summary:
total common heads: 1
also local heads: 1
also remote heads: 0
both: 0
local heads: 2
common: 1
missing: 1
remote heads: 1
common: 0
unknown: 1
local changesets: 34
common: 4
heads: 1
roots: 1
missing: 30
heads: 1
roots: 1
first undecided set: 33
heads: 2
roots: 1
common: 3
missing: 30
common heads: 2dc09a01254d
% -- a -> b set (tip only)
comparing with b
query 1; heads
searching for changes
taking quick initial sample
searching: 2 queries
query 2; still undecided: 31, sample size is: 31
2 total queries in *.????s (glob)
elapsed time: * seconds (glob)
round-trips: 2
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 2
common: 0
missing: 2
remote heads: 1
common: 0
unknown: 1
local changesets: 34
common: 2
heads: 1
roots: 1
missing: 32
heads: 2
roots: 2
first undecided set: 34
heads: 2
roots: 1
common: 2
missing: 32
common heads: 66f7d451a68b
% -- b -> a tree
comparing with a
searching for changes
unpruned common: 2dc09a01254d 66f7d451a68b
elapsed time: * seconds (glob)
round-trips: 4
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 1
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 2
common: 1
unknown: 1
local changesets: 34
common: 4
heads: 1
roots: 1
missing: 30
heads: 1
roots: 1
first undecided set: 30
heads: 1
roots: 1
common: 0
missing: 30
common heads: 2dc09a01254d
% -- b -> a set
comparing with a
query 1; heads
searching for changes
taking initial sample
searching: 2 queries
query 2; still undecided: 29, sample size is: 29
2 total queries in *.????s (glob)
elapsed time: * seconds (glob)
round-trips: 2
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 1
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 2
common: 1
unknown: 1
local changesets: 34
common: 4
heads: 1
roots: 1
missing: 30
heads: 1
roots: 1
first undecided set: 30
heads: 1
roots: 1
common: 0
missing: 30
common heads: 2dc09a01254d
% -- b -> a set (tip only)
comparing with a
query 1; heads
searching for changes
taking initial sample
searching: 2 queries
query 2; still undecided: 29, sample size is: 29
2 total queries in *.????s (glob)
elapsed time: * seconds (glob)
round-trips: 2
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 1
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 2
common: 1
unknown: 1
local changesets: 34
common: 4
heads: 1
roots: 1
missing: 30
heads: 1
roots: 1
first undecided set: 30
heads: 1
roots: 1
common: 0
missing: 30
common heads: 2dc09a01254d
Both many new:
$ testdesc '-ra' '-rb' '
> +2:f +30 :b
> <f +30 :a'
% -- a -> b tree
comparing with b
searching for changes
unpruned common: 66f7d451a68b
elapsed time: * seconds (glob)
round-trips: 4
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 1
common: 0
unknown: 1
local changesets: 32
common: 2
heads: 1
roots: 1
missing: 30
heads: 1
roots: 1
first undecided set: 32
heads: 1
roots: 1
common: 2
missing: 30
common heads: 66f7d451a68b
% -- a -> b set
comparing with b
query 1; heads
searching for changes
taking quick initial sample
searching: 2 queries
query 2; still undecided: 31, sample size is: 31
2 total queries in *.????s (glob)
elapsed time: * seconds (glob)
round-trips: 2
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 1
common: 0
unknown: 1
local changesets: 32
common: 2
heads: 1
roots: 1
missing: 30
heads: 1
roots: 1
first undecided set: 32
heads: 1
roots: 1
common: 2
missing: 30
common heads: 66f7d451a68b
% -- a -> b set (tip only)
comparing with b
query 1; heads
searching for changes
taking quick initial sample
searching: 2 queries
query 2; still undecided: 31, sample size is: 31
2 total queries in *.????s (glob)
elapsed time: * seconds (glob)
round-trips: 2
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 1
common: 0
unknown: 1
local changesets: 32
common: 2
heads: 1
roots: 1
missing: 30
heads: 1
roots: 1
first undecided set: 32
heads: 1
roots: 1
common: 2
missing: 30
common heads: 66f7d451a68b
% -- b -> a tree
comparing with a
searching for changes
unpruned common: 66f7d451a68b
elapsed time: * seconds (glob)
round-trips: 4
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 1
common: 0
unknown: 1
local changesets: 32
common: 2
heads: 1
roots: 1
missing: 30
heads: 1
roots: 1
first undecided set: 32
heads: 1
roots: 1
common: 2
missing: 30
common heads: 66f7d451a68b
% -- b -> a set
comparing with a
query 1; heads
searching for changes
taking quick initial sample
searching: 2 queries
query 2; still undecided: 31, sample size is: 31
2 total queries in *.????s (glob)
elapsed time: * seconds (glob)
round-trips: 2
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 1
common: 0
unknown: 1
local changesets: 32
common: 2
heads: 1
roots: 1
missing: 30
heads: 1
roots: 1
first undecided set: 32
heads: 1
roots: 1
common: 2
missing: 30
common heads: 66f7d451a68b
% -- b -> a set (tip only)
comparing with a
query 1; heads
searching for changes
taking quick initial sample
searching: 2 queries
query 2; still undecided: 31, sample size is: 31
2 total queries in *.????s (glob)
elapsed time: * seconds (glob)
round-trips: 2
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 1
common: 0
unknown: 1
local changesets: 32
common: 2
heads: 1
roots: 1
missing: 30
heads: 1
roots: 1
first undecided set: 32
heads: 1
roots: 1
common: 2
missing: 30
common heads: 66f7d451a68b
Both many new skewed:
$ testdesc '-ra' '-rb' '
> +2:f +30 :b
> <f +50 :a'
% -- a -> b tree
comparing with b
searching for changes
unpruned common: 66f7d451a68b
elapsed time: * seconds (glob)
round-trips: 4
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 1
common: 0
unknown: 1
local changesets: 52
common: 2
heads: 1
roots: 1
missing: 50
heads: 1
roots: 1
first undecided set: 52
heads: 1
roots: 1
common: 2
missing: 50
common heads: 66f7d451a68b
% -- a -> b set
comparing with b
query 1; heads
searching for changes
taking quick initial sample
searching: 2 queries
query 2; still undecided: 51, sample size is: 51
2 total queries in *.????s (glob)
elapsed time: * seconds (glob)
round-trips: 2
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 1
common: 0
unknown: 1
local changesets: 52
common: 2
heads: 1
roots: 1
missing: 50
heads: 1
roots: 1
first undecided set: 52
heads: 1
roots: 1
common: 2
missing: 50
common heads: 66f7d451a68b
% -- a -> b set (tip only)
comparing with b
query 1; heads
searching for changes
taking quick initial sample
searching: 2 queries
query 2; still undecided: 51, sample size is: 51
2 total queries in *.????s (glob)
elapsed time: * seconds (glob)
round-trips: 2
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 1
common: 0
unknown: 1
local changesets: 52
common: 2
heads: 1
roots: 1
missing: 50
heads: 1
roots: 1
first undecided set: 52
heads: 1
roots: 1
common: 2
missing: 50
common heads: 66f7d451a68b
% -- b -> a tree
comparing with a
searching for changes
unpruned common: 66f7d451a68b
elapsed time: * seconds (glob)
round-trips: 3
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 1
common: 0
unknown: 1
local changesets: 32
common: 2
heads: 1
roots: 1
missing: 30
heads: 1
roots: 1
first undecided set: 32
heads: 1
roots: 1
common: 2
missing: 30
common heads: 66f7d451a68b
% -- b -> a set
comparing with a
query 1; heads
searching for changes
taking quick initial sample
searching: 2 queries
query 2; still undecided: 31, sample size is: 31
2 total queries in *.????s (glob)
elapsed time: * seconds (glob)
round-trips: 2
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 1
common: 0
unknown: 1
local changesets: 32
common: 2
heads: 1
roots: 1
missing: 30
heads: 1
roots: 1
first undecided set: 32
heads: 1
roots: 1
common: 2
missing: 30
common heads: 66f7d451a68b
% -- b -> a set (tip only)
comparing with a
query 1; heads
searching for changes
taking quick initial sample
searching: 2 queries
query 2; still undecided: 31, sample size is: 31
2 total queries in *.????s (glob)
elapsed time: * seconds (glob)
round-trips: 2
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 1
common: 0
unknown: 1
local changesets: 32
common: 2
heads: 1
roots: 1
missing: 30
heads: 1
roots: 1
first undecided set: 32
heads: 1
roots: 1
common: 2
missing: 30
common heads: 66f7d451a68b
Both many new on top of long history:
$ testdesc '-ra' '-rb' '
> +1000:f +30 :b
> <f +50 :a'
% -- a -> b tree
comparing with b
searching for changes
unpruned common: 7ead0cba2838
elapsed time: * seconds (glob)
round-trips: 4
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 1
common: 0
unknown: 1
local changesets: 1050
common: 1000
heads: 1
roots: 1
missing: 50
heads: 1
roots: 1
first undecided set: 1050
heads: 1
roots: 1
common: 1000
missing: 50
common heads: 7ead0cba2838
% -- a -> b set
comparing with b
query 1; heads
searching for changes
taking quick initial sample
searching: 2 queries
query 2; still undecided: 1049, sample size is: 11
sampling from both directions
searching: 3 queries
query 3; still undecided: 31, sample size is: 31
3 total queries in *.????s (glob)
elapsed time: * seconds (glob)
round-trips: 3
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 1
common: 0
unknown: 1
local changesets: 1050
common: 1000
heads: 1
roots: 1
missing: 50
heads: 1
roots: 1
first undecided set: 1050
heads: 1
roots: 1
common: 1000
missing: 50
common heads: 7ead0cba2838
% -- a -> b set (tip only)
comparing with b
query 1; heads
searching for changes
taking quick initial sample
searching: 2 queries
query 2; still undecided: 1049, sample size is: 11
sampling from both directions
searching: 3 queries
query 3; still undecided: 31, sample size is: 31
3 total queries in *.????s (glob)
elapsed time: * seconds (glob)
round-trips: 3
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 1
common: 0
unknown: 1
local changesets: 1050
common: 1000
heads: 1
roots: 1
missing: 50
heads: 1
roots: 1
first undecided set: 1050
heads: 1
roots: 1
common: 1000
missing: 50
common heads: 7ead0cba2838
% -- b -> a tree
comparing with a
searching for changes
unpruned common: 7ead0cba2838
elapsed time: * seconds (glob)
round-trips: 3
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 1
common: 0
unknown: 1
local changesets: 1030
common: 1000
heads: 1
roots: 1
missing: 30
heads: 1
roots: 1
first undecided set: 1030
heads: 1
roots: 1
common: 1000
missing: 30
common heads: 7ead0cba2838
% -- b -> a set
comparing with a
query 1; heads
searching for changes
taking quick initial sample
searching: 2 queries
query 2; still undecided: 1029, sample size is: 11
sampling from both directions
searching: 3 queries
query 3; still undecided: 15, sample size is: 15
3 total queries in *.????s (glob)
elapsed time: * seconds (glob)
round-trips: 3
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 1
common: 0
unknown: 1
local changesets: 1030
common: 1000
heads: 1
roots: 1
missing: 30
heads: 1
roots: 1
first undecided set: 1030
heads: 1
roots: 1
common: 1000
missing: 30
common heads: 7ead0cba2838
% -- b -> a set (tip only)
comparing with a
query 1; heads
searching for changes
taking quick initial sample
searching: 2 queries
query 2; still undecided: 1029, sample size is: 11
sampling from both directions
searching: 3 queries
query 3; still undecided: 15, sample size is: 15
3 total queries in *.????s (glob)
elapsed time: * seconds (glob)
round-trips: 3
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 1
common: 0
unknown: 1
local changesets: 1030
common: 1000
heads: 1
roots: 1
missing: 30
heads: 1
roots: 1
first undecided set: 1030
heads: 1
roots: 1
common: 1000
missing: 30
common heads: 7ead0cba2838
One with >200 heads. We now switch to send them all in the initial roundtrip, but still do sampling for the later request.
$ hg init manyheads
$ cd manyheads
$ echo "+300:r @a" >dagdesc
$ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads
$ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads
$ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads
$ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads
$ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads
$ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads
$ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads
$ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads
$ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads
$ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads
$ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads
$ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads
$ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads
$ echo "@b *r+3" >>dagdesc # one more head
$ hg debugbuilddag <dagdesc
reading DAG from stdin
$ hg heads -t --template . | wc -c
\s*261 (re)
$ hg clone -b a . a
adding changesets
adding manifests
adding file changes
added 1340 changesets with 0 changes to 0 files (+259 heads)
new changesets 1ea73414a91b:1c51e2c80832
updating to branch a
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg clone -b b . b
adding changesets
adding manifests
adding file changes
added 304 changesets with 0 changes to 0 files
new changesets 1ea73414a91b:513314ca8b3a
updating to branch b
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg -R a debugdiscovery b --debug --verbose --config progress.debug=true --config devel.discovery.randomize=false
comparing with b
query 1; heads
searching for changes
taking quick initial sample
searching: 2 queries
query 2; still undecided: 1080, sample size is: 100
sampling from both directions
searching: 3 queries
query 3; still undecided: 980, sample size is: 200
sampling from both directions
searching: 4 queries
query 4; still undecided: 497, sample size is: 210
sampling from both directions
searching: 5 queries
query 5; still undecided: 285, sample size is: 220
sampling from both directions
searching: 6 queries
query 6; still undecided: 63, sample size is: 63
6 total queries in *.????s (glob)
elapsed time: * seconds (glob)
round-trips: 6
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 260
common: 0
missing: 260
remote heads: 1
common: 0
unknown: 1
local changesets: 1340
common: 300
heads: 1
roots: 1
missing: 1040
heads: 260
roots: 260
first undecided set: 1340
heads: 260
roots: 1
common: 300
missing: 1040
common heads: 3ee37d65064a
$ hg -R a debugdiscovery b --debug --verbose --config progress.debug=true --rev tip
comparing with b
query 1; heads
searching for changes
taking quick initial sample
searching: 2 queries
query 2; still undecided: 303, sample size is: 9
sampling from both directions
searching: 3 queries
query 3; still undecided: 3, sample size is: 3
3 total queries in *.????s (glob)
elapsed time: * seconds (glob)
round-trips: 3
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 260
common: 0
missing: 260
remote heads: 1
common: 0
unknown: 1
local changesets: 1340
common: 300
heads: 1
roots: 1
missing: 1040
heads: 260
roots: 260
first undecided set: 1340
heads: 260
roots: 1
common: 300
missing: 1040
common heads: 3ee37d65064a
$ hg -R a debugdiscovery b --debug --config devel.discovery.randomize=false --config devel.discovery.grow-sample.rate=1.01
comparing with b
query 1; heads
searching for changes
taking quick initial sample
query 2; still undecided: 1080, sample size is: 100
sampling from both directions
query 3; still undecided: 980, sample size is: 200
sampling from both directions
query 4; still undecided: 497, sample size is: 202
sampling from both directions
query 5; still undecided: 294, sample size is: 204
sampling from both directions
query 6; still undecided: 90, sample size is: 90
6 total queries in *s (glob)
elapsed time: * seconds (glob)
round-trips: 6
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 260
common: 0
missing: 260
remote heads: 1
common: 0
unknown: 1
local changesets: 1340
common: 300
heads: 1
roots: 1
missing: 1040
heads: 260
roots: 260
first undecided set: 1340
heads: 260
roots: 1
common: 300
missing: 1040
common heads: 3ee37d65064a
Test actual protocol when pulling one new head in addition to common heads
$ hg clone -U b c
$ hg -R c id -ir tip
513314ca8b3a
$ hg -R c up -qr default
$ touch c/f
$ hg -R c ci -Aqm "extra head"
$ hg -R c id -i
e64a39e7da8b
$ hg serve -R c -p $HGPORT -d --pid-file=hg.pid -A access.log -E errors.log
$ cat hg.pid >> $DAEMON_PIDS
$ hg -R b incoming http://localhost:$HGPORT/ -T '{node|short}\n'
comparing with http://localhost:$HGPORT/
searching for changes
e64a39e7da8b
$ killdaemons.py
$ cut -d' ' -f6- access.log | grep -v cmd=known # cmd=known uses random sampling
"GET /?cmd=capabilities HTTP/1.1" 200 -
"GET /?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D513314ca8b3ae4dac8eec56966265b00fcf866db x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull
"GET /?cmd=getbundle HTTP/1.1" 200 - x-hgarg-1:$USUAL_BUNDLE_CAPS$&cg=1&common=513314ca8b3ae4dac8eec56966265b00fcf866db&heads=e64a39e7da8b0d54bc63e81169aff001c13b3477 x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull
"GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=phases x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull
$ cat errors.log
$ cd ..
Issue 4438 - test coverage for 3ef893520a85 issues.
$ mkdir issue4438
$ cd issue4438
#if false
generate new bundles:
$ hg init r1
$ for i in `"$PYTHON" $TESTDIR/seq.py 101`; do hg -R r1 up -qr null && hg -R r1 branch -q b$i && hg -R r1 ci -qmb$i; done
$ hg clone -q r1 r2
$ for i in `"$PYTHON" $TESTDIR/seq.py 10`; do hg -R r1 up -qr null && hg -R r1 branch -q c$i && hg -R r1 ci -qmc$i; done
$ hg -R r2 branch -q r2change && hg -R r2 ci -qmr2change
$ hg -R r1 bundle -qa $TESTDIR/bundles/issue4438-r1.hg
$ hg -R r2 bundle -qa $TESTDIR/bundles/issue4438-r2.hg
#else
use existing bundles:
$ hg init r1
$ hg -R r1 -q unbundle $TESTDIR/bundles/issue4438-r1.hg
$ hg -R r1 -q up
$ hg init r2
$ hg -R r2 -q unbundle $TESTDIR/bundles/issue4438-r2.hg
$ hg -R r2 -q up
#endif
Set iteration order could cause wrong and unstable results - fixed in 73cfaa348650:
$ hg -R r1 outgoing r2 -T'{rev} '
comparing with r2
searching for changes
101 102 103 104 105 106 107 108 109 110 (no-eol)
The case where all the 'initialsamplesize' samples already were common would
give 'all remote heads known locally' without checking the remaining heads -
fixed in 86c35b7ae300:
$ cat >> r1/.hg/hgrc << EOF
> [devel]
> discovery.randomize = False
> EOF
$ hg -R r1 outgoing r2 -T'{rev} ' --config extensions.blackbox= \
> --config blackbox.track='command commandfinish discovery'
comparing with r2
searching for changes
101 102 103 104 105 106 107 108 109 110 (no-eol)
$ hg -R r1 --config extensions.blackbox= blackbox --config blackbox.track=
* @5d0b986a083e0d91f116de4691e2aaa54d5bbec0 (*)> serve --cmdserver chgunix * (glob) (chg !)
* @5d0b986a083e0d91f116de4691e2aaa54d5bbec0 (*)> -R r1 outgoing r2 *-T{rev} * --config *extensions.blackbox=* (glob)
* @5d0b986a083e0d91f116de4691e2aaa54d5bbec0 (*)> found 101 common and 1 unknown server heads, 1 roundtrips in *.????s (glob)
* @5d0b986a083e0d91f116de4691e2aaa54d5bbec0 (*)> -R r1 outgoing r2 *-T{rev} * --config *extensions.blackbox=* exited 0 after *.?? seconds (glob)
$ cd ..
Even if the set of revs to discover is restricted, unrelated revs may be
returned as common heads.
$ mkdir ancestorsof
$ cd ancestorsof
$ hg init a
$ hg clone a b -q
$ cd b
$ hg debugbuilddag '.:root *root *root'
$ hg log -G -T '{node|short}'
o fa942426a6fd
|
| o 66f7d451a68b
|/
o 1ea73414a91b
$ hg push -r 66f7d451a68b -q
$ hg debugdiscovery --verbose --rev fa942426a6fd
comparing with $TESTTMP/ancestorsof/a
searching for changes
elapsed time: * seconds (glob)
round-trips: 1
heads summary:
total common heads: 1
also local heads: 1
also remote heads: 1
both: 1
local heads: 2
common: 1
missing: 1
remote heads: 1
common: 1
unknown: 0
local changesets: 3
common: 2
heads: 1
roots: 1
missing: 1
heads: 1
roots: 1
first undecided set: 1
heads: 1
roots: 1
common: 0
missing: 1
common heads: 66f7d451a68b