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c1d98ba59cd3d237fb7ca83a62d9820b71cf76c4
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222 Commits
Author SHA1 Message Date
Matthias Radestock c1d98ba59c refactor: extract a helper 2016-04-17 12:40:34 +01:00
Matthias Radestock a1823af745 refactor: make error returns less onerous 2016-04-17 12:40:34 +01:00
Matthias Radestock 4a01d23025 refactor: extract entry merging from ring merging 2016-04-17 12:40:34 +01:00
Matthias Radestock 27632b118f prevent excessive ring fragmentation due to repeated space requests 
Merging a ring now indicates whether the ring has been updated. This
prevents excessive allocation retries, which in turn can result in
repeated space requests - i.e. if an allocation cannot proceed due to
lack of space - which in turn can result in excessive ring
fragmentation since many of the requests will result in the creation
of a new ring entries, due to the need to split ranges.

Fixes #2181.
 2016-04-17 12:40:18 +01:00
Matthias Radestock 0e54de63cc cosmetic 2016-04-17 09:33:52 +01:00
Matthias Radestock 8f54f83285 refactor: align test allocator names with indices 
for easier debugging
 2016-04-16 09:12:49 +01:00
Adam Harrison a09986baa2 Rename consense -> prime 2016-04-14 12:46:03 +01:00
Bryan Boreham 61b0d0ba9e Merge pull request #2149 from weaveworks/stop-test-router 
stop ipam tests from leaking routers
 2016-04-11 13:34:21 +01:00
Bryan Boreham c10d26cf02 Fix up TestBootstrap after consensus changes 2016-04-11 13:20:54 +01:00
Matthias Radestock 695babf7ba make Allocator.Stop() idempotent and non-blocking 
So that tests don't have to be careful about ensuring that allocators
are stopped exactly once, or rely on the magic mesh.ChannelSize for
non-blocking behaviour.
 2016-04-11 12:32:01 +01:00
Bryan Boreham ecf1887e5b Initialize Paxos quorum to 0 until this node needs to request consensus. 
With a 0 quorum we will participate in voting, but will not actively
try to form a ring.
 2016-04-11 11:42:24 +01:00
Matthias Radestock 4d352d6eb1 stop router created by makeNetworkOfAllocators 
so that unit tests don't leave garbage behind
 2016-04-10 11:22:57 +01:00
Bryan Boreham c12a52d20e Better log and status messages for Paxos observer 2016-04-07 12:50:52 +01:00
Bryan Boreham 0c59de40e7 Refactor Paxos status call to remove type assertion 2016-04-07 12:12:08 +01:00
Matthias Radestock 2e31087818 dump state on paxos test failure 
to help diagnosis of #2132 and similar problems
 2016-04-06 08:55:49 +01:00
Adam Harrison 436dc01f52 Merge pull request #2070 from weaveworks/issues/1721-quorum-callback 
Use current target list to compute quorum
 2016-03-29 11:11:30 +01:00
Bryan Boreham aab86c38b7 Merge pull request #2093 from weaveworks/tools 
Update tools to get misspell integration. Aho-Corasick FTW!
 2016-03-24 14:09:45 +00:00
Bryan Boreham cfa9b4f638 Assert that paxos quorum is set 2016-03-24 12:06:59 +00:00
Bryan Boreham 2b617633ae Compute quorum based on the dynamic number of target peers 2016-03-24 12:06:59 +00:00
Matthias Radestock b8abb22833 Merge branch '1.4' 2016-03-23 16:39:17 +00:00
Tom Wilkie 7a7867ae16 Fix spelling mistakes. 2016-03-23 16:09:43 +00:00
Bryan Boreham 6bc199a8bc Change invariant fail on Merge() from panic to error 2016-03-23 15:26:26 +00:00
Adam Harrison e9081c6607 Allow specification of initial IPAM ring via --ipam-seed 2016-03-21 09:49:54 +00:00
Bryan Boreham 09a6c2eda0 Get the owned ranges for test purposes via the actor loop, so we don't set off the race detector 2016-03-19 15:29:34 +00:00
Matthias Radestock 9f10b21c9c use Space.NumFreeAddresses for calculating transferred ip count 
...rather than Space.NumFreeAddressesInRange; we don't care about the
universe.

Alternatively we could make Space.AddRanges return the count. But
AddRanges doesn't know whether the ranges overlap with existing free
space - that is only guaranteed by the context - so would have to do
much the same before/after calculation.

Another alternative would be to add the range sizes in
AdminTakeoverRanges. But that is more code and less clear.
 2016-03-19 14:41:36 +00:00
Matthias Radestock 62d823850c make rmpeer report on size of transferred space, and not fail 
Closes #2058.
 2016-03-19 14:40:26 +00:00
Matthias Radestock c48eefa82d refactor(ish): extract allocator logging commonality 
and add warnf
 2016-03-19 14:32:54 +00:00
Matthias Radestock 65eff683dd Merge branch '1.4' 2016-03-19 14:30:38 +00:00
Matthias Radestock f42e275884 broadcast ipam ring update after rmpeer 
So that other peers notice the change more promptly.

Fixes #2068.
 2016-03-19 13:57:20 +00:00
Bryan Boreham f11314ed3e Introduce 'Count' type to avoid abusing 'Offset' 2016-03-19 11:47:34 +00:00
Matthias Radestock bc7539c4ad cosmetic: consistency 2016-03-18 11:56:10 +00:00
Matthias Radestock 9c2e9bab14 cosmetic(ish) refactor 2016-03-18 02:42:53 +00:00
Adam Harrison 2eeb754454 refactor: Introduce IPAM config object 2016-03-14 17:41:20 +00:00
Bryan Boreham a57335738d Don't do unnecessary clock skew check in IPAM 2016-03-10 11:41:47 +00:00
Adam Harrison 6584df274e Implement weave consense 2016-03-03 18:52:09 +00:00
Adam Harrison b84ef98de8 Support non-electing peers via --observer 2016-03-03 17:48:50 +00:00
Martynas Pumputis 9cfc104fc7 Add TestSpaceRequest test for allocator 
Checks whether a donating peer does not leave one ip address
behind a block it donates (#2009).
 2016-03-03 08:36:14 -08:00
Bryan Boreham 824329d4c9 Fix up unit tests to look at CIDRs instead of addresses. 2016-03-02 17:21:52 -08:00
Bryan Boreham 604309fb53 Parse CIDR strings without separating into subnet and address 2016-03-02 17:21:52 -08:00
Bryan Boreham 73f1a04d5f Deal in subnets, not ranges, when requesting address allocation 2016-03-02 17:21:51 -08:00
Bryan Boreham b76e2a87cf Store address+subnet prefix for 'owned' addresses 2016-03-02 17:21:24 -08:00
Bryan Boreham b6eec08247 Return all applicable results from Lookup 
and stop erroring on Lookup not found; just return a blank result
 2016-03-02 17:01:12 -08:00
Bryan Boreham 03563e847e Remember addresses outside of the allocation range 2016-03-02 17:01:12 -08:00
Bryan Boreham 95cbc8940e Sync 'owned' data with existing containers at startup 2016-03-02 11:35:24 -08:00
Bryan Boreham f29716387f Persist the 'owned' address set 2016-03-02 11:35:24 -08:00
Bryan Boreham 7453c7a5dd Merge branch '1.4' 2016-02-29 08:22:22 -08:00
Adam Harrison bceabe32a2 Try all pending allocations 
We can have outstanding allocations for different ranges owned by
different peers, so we should not short circuit after the first space
request.
 2016-02-25 14:56:33 +00:00
Bryan Boreham 546f9592f9 Hard-fail on persistence errors, otherwise the network can get confused on a restart. 
Create `Allocator.fatalf()`, for consistency
 2016-02-12 18:12:26 +00:00
Bryan Boreham 06f3793f05 Remove persisted IPAM ring data on peerName change 2016-02-12 18:12:26 +00:00
Bryan Boreham f396c60402 Persist the Ring 2016-02-12 18:12:26 +00:00