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always create a new pack, never keep as op

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This commit is contained in:
Brian Gough 2016-01-11 12:42:53 +00:00
parent c6be12f3d5
commit f592611cac
1 changed files with 1 additions and 12 deletions
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13
services/track-changes/app/coffee/PackManager.coffee
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@ -269,15 +269,10 @@ module.exports = PackManager =
MAX_SIZE: 1024*1024 # make these configurable parameters MAX_SIZE: 1024*1024 # make these configurable parameters
MAX_COUNT: 1024 MAX_COUNT: 1024
MIN_COUNT: 100
KEEP_OPS: 100
convertDocsToPacks: (docs, callback) -> convertDocsToPacks: (docs, callback) ->
packs = [] packs = []
top = null top = null
# keep the last KEEP_OPS as individual ops
docs = docs.slice(0,-PackManager.KEEP_OPS)
docs.forEach (d,i) -> docs.forEach (d,i) ->
# skip existing packs # skip existing packs
if d.pack? if d.pack?
@ -294,7 +289,7 @@ module.exports = PackManager =
top.v_end = d.v top.v_end = d.v
top.meta.end_ts = d.meta.end_ts top.meta.end_ts = d.meta.end_ts
return return
else if sz < PackManager.MAX_SIZE else
# create a new pack # create a new pack
top = _.clone(d) top = _.clone(d)
top.pack = [ {v: d.v, meta: d.meta, op: d.op, _id: d._id} ] top.pack = [ {v: d.v, meta: d.meta, op: d.op, _id: d._id} ]
@ -304,13 +299,7 @@ module.exports = PackManager =
delete top.op delete top.op
delete top._id delete top._id
packs.push top packs.push top
else
# keep the op
# util.log "keeping large op unchanged (#{sz} bytes)"
# only store packs with a sufficient number of ops, discard others
packs = packs.filter (packObj) ->
packObj.pack.length > PackManager.MIN_COUNT
callback(null, packs) callback(null, packs)
checkHistory: (docs, callback) -> checkHistory: (docs, callback) ->