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Support cluster purge #7

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Support cluster purge #7

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a8c3c8e
Support clustered purge
chguocloudant Nov 30, 2016
8c462eb
Support clustered purge
chguocloudant Jan 3, 2017
6bd12a2
Update for set/get purge seq
chguocloudant Jan 9, 2017
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3 changes: 3 additions & 0 deletions src/main/scala/com/cloudant/clouseau/ClouseauTypeFactory.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -41,6 +41,7 @@ case class UpdateDocMsg(id: String, doc: Document)
case class DeleteDocMsg(id: String)
case class CommitMsg(seq: Long)
case class SetUpdateSeqMsg(seq: Long)
case class SetPurgeSeqMsg(seq: Long)

object ClouseauTypeFactory extends TypeFactory {

Expand Down Expand Up @@ -89,6 +90,8 @@ object ClouseauTypeFactory extends TypeFactory {
Some(CommitMsg(toLong(reader.readTerm)))
case ('set_update_seq, 2) =>
Some(SetUpdateSeqMsg(toLong(reader.readTerm)))
case ('set_purge_seq, 2) =>
Some(SetPurgeSeqMsg(toLong(reader.readTerm)))
case _ =>
None
}
Expand Down
39 changes: 30 additions & 9 deletions src/main/scala/com/cloudant/clouseau/IndexService.scala
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Expand Up @@ -70,6 +70,8 @@ class IndexService(ctx: ServiceContext[IndexServiceArgs]) extends Service(ctx) w
var reader = DirectoryReader.open(ctx.args.writer, true)
var updateSeq = getCommittedSeq
var pendingSeq = updateSeq
var purgeSeq = getCommittedPurgeSeq
var pendingPurgeSeq = purgeSeq
var committing = false
var forceRefresh = false

Expand Down Expand Up @@ -97,6 +99,8 @@ class IndexService(ctx: ServiceContext[IndexServiceArgs]) extends Service(ctx) w
group2(request)
case 'get_update_seq =>
('ok, updateSeq)
case 'get_purge_seq =>
('ok, purgeSeq)
case UpdateDocMsg(id: String, doc: Document) =>
logger.debug("Updating %s".format(id))
updateTimer.time {
Expand All @@ -117,6 +121,10 @@ class IndexService(ctx: ServiceContext[IndexServiceArgs]) extends Service(ctx) w
pendingSeq = newSeq
logger.debug("Pending sequence is now %d".format(newSeq))
'ok
case SetPurgeSeqMsg(newPurgeSeq: Long) =>
pendingPurgeSeq = newPurgeSeq
logger.debug("purge sequence is now %d".format(newPurgeSeq))
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should say 'Pending purge sequence is now %d'

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OK, got it. I will modify it later.

'ok
case 'info =>
('ok, getInfo)
}
Expand Down Expand Up @@ -148,12 +156,13 @@ class IndexService(ctx: ServiceContext[IndexServiceArgs]) extends Service(ctx) w
}
exit('deleted)
case 'maybe_commit =>
commit(pendingSeq)
case ('committed, newSeq: Long) =>
updateSeq = newSeq
commit(pendingSeq, pendingPurgeSeq)
case ('committed, newUpdateSeq: Long, newPurgeSeq: Long) =>
updateSeq = newUpdateSeq
purgeSeq = newPurgeSeq
forceRefresh = true
committing = false
logger.info("Committed sequence %d".format(newSeq))
logger.debug("Committed update sequence %d and purge sequence %d".format(newUpdateSeq, newPurgeSeq))
case 'commit_failed =>
committing = false
}
Expand All @@ -175,18 +184,19 @@ class IndexService(ctx: ServiceContext[IndexServiceArgs]) extends Service(ctx) w
}
}

private def commit(newSeq: Long) {
if (!committing && newSeq > updateSeq) {
private def commit(newUpdateSeq: Long, newPurgeSeq: Long) {
if (!committing && (newUpdateSeq > updateSeq || newPurgeSeq > purgeSeq)) {
committing = true
val index = self
node.spawn((_) => {
ctx.args.writer.setCommitData(ctx.args.writer.getCommitData +
("update_seq" -> newSeq.toString))
("update_seq" -> newUpdateSeq.toString) +
("purge_seq" -> newPurgeSeq.toString))
try {
commitTimer.time {
ctx.args.writer.commit()
}
index ! ('committed, newSeq)
index ! ('committed, newUpdateSeq, newPurgeSeq)
} catch {
case e: AlreadyClosedException =>
logger.error("Commit failed to closed writer", e)
Expand Down Expand Up @@ -569,7 +579,8 @@ class IndexService(ctx: ServiceContext[IndexServiceArgs]) extends Service(ctx) w
('doc_count, reader.numDocs),
('doc_del_count, reader.numDeletedDocs),
('pending_seq, pendingSeq),
('committed_seq, getCommittedSeq)
('committed_seq, getCommittedSeq),
('purge_seq, purgeSeq)
)
}

Expand All @@ -590,6 +601,16 @@ class IndexService(ctx: ServiceContext[IndexServiceArgs]) extends Service(ctx) w
}
}

private def getCommittedPurgeSeq = {
val commitData = ctx.args.writer.getCommitData
commitData.get("purge_seq") match {
case null =>
0L
case seq =>
seq.toLong
}
}

private def parseSort(v: Any): Sort = v match {
case 'relevance =>
Sort.RELEVANCE
Expand Down