/
timekeeper.go
4249 lines (3343 loc) · 139 KB
/
timekeeper.go
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// Copyright (c) 2014 Couchbase, Inc.
// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
// except in compliance with the License. You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software distributed under the
// License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
// either express or implied. See the License for the specific language governing permissions
// and limitations under the License.
package indexer
import (
"errors"
"fmt"
"math"
"sort"
"sync"
"time"
"github.com/couchbase/indexing/secondary/common"
"github.com/couchbase/indexing/secondary/logging"
)
const (
maxStatsRetries = 5
)
//Timekeeper manages the Stability Timestamp Generation and also
//keeps track of the HWTimestamp for each keyspaceId
type Timekeeper interface {
}
type timekeeper struct {
supvCmdch MsgChannel //supervisor sends commands on this channel
supvRespch MsgChannel //channel to send any async message to supervisor
ss *StreamState
//map of indexInstId to its Initial Build Info
indexBuildInfo map[common.IndexInstId]*InitialBuildInfo
config common.Config
indexInstMap common.IndexInstMap
indexPartnMap IndexPartnMap
statsLock sync.Mutex
stats IndexerStatsHolder
vbCheckerStopCh chan bool
lock sync.RWMutex //lock to protect this structure
indexerState common.IndexerState
}
type InitialBuildInfo struct {
indexInst common.IndexInst
buildTs Timestamp
buildDoneAckReceived bool
minMergeTs *common.TsVbuuid //minimum merge ts for init stream
addInstPending bool
waitForRecovery bool
flushedUptoMinMergeTs bool //indicates flushTs is past minMergeTs
}
//timeout in milliseconds to batch the vbuckets
//together for repair message
const REPAIR_BATCH_TIMEOUT = 1000
const KV_RETRY_INTERVAL = 5000
//const REPAIR_RETRY_INTERVAL = 5000
const REPAIR_RETRY_BEFORE_SHUTDOWN = 5
//NewTimekeeper returns an instance of timekeeper or err message.
//It listens on supvCmdch for command and every command is followed
//by a synchronous response of the supvCmdch.
//Any async response to supervisor is sent to supvRespch.
//If supvCmdch get closed, storageMgr will shut itself down.
func NewTimekeeper(supvCmdch MsgChannel, supvRespch MsgChannel,
config common.Config) (Timekeeper, Message) {
//Init the timekeeper struct
tk := &timekeeper{
supvCmdch: supvCmdch,
supvRespch: supvRespch,
ss: InitStreamState(config),
config: config,
indexInstMap: make(common.IndexInstMap),
indexPartnMap: make(IndexPartnMap),
indexBuildInfo: make(map[common.IndexInstId]*InitialBuildInfo),
}
//start timekeeper loop which listens to commands from its supervisor
go tk.run()
return tk, &MsgSuccess{}
}
//run starts the timekeeper loop which listens to messages
//from it supervisor(indexer)
func (tk *timekeeper) run() {
//main timekeeper loop
loop:
for {
select {
case cmd, ok := <-tk.supvCmdch:
if ok {
if cmd.GetMsgType() == TK_SHUTDOWN {
logging.Infof("Timekeeper::run Shutting Down")
tk.supvCmdch <- &MsgSuccess{}
close(tk.vbCheckerStopCh)
break loop
}
tk.handleSupervisorCommands(cmd)
} else {
//supervisor channel closed. exit
break loop
}
}
}
}
func (tk *timekeeper) handleSupervisorCommands(cmd Message) {
switch cmd.GetMsgType() {
case OPEN_STREAM:
tk.handleStreamOpen(cmd)
case ADD_INDEX_LIST_TO_STREAM:
tk.handleAddIndextoStream(cmd)
case INDEXER_UPDATE_BUILD_TS:
tk.handleUpdateBuildTs(cmd)
case REMOVE_INDEX_LIST_FROM_STREAM:
tk.handleRemoveIndexFromStream(cmd)
case REMOVE_KEYSPACE_FROM_STREAM:
tk.handleRemoveKeyspaceFromStream(cmd)
case CLOSE_STREAM:
tk.handleStreamClose(cmd)
case CLEANUP_STREAM:
tk.handleStreamCleanup(cmd)
case STREAM_READER_STREAM_BEGIN:
tk.handleStreamBegin(cmd)
case STREAM_READER_STREAM_END:
tk.handleStreamEnd(cmd)
case STREAM_READER_HWT:
tk.handleSync(cmd)
case STREAM_READER_CONN_ERROR:
tk.handleStreamConnError(cmd)
case STREAM_READER_SYSTEM_EVENT:
tk.handleDcpSystemEvent(cmd)
case STREAM_READER_OSO_SNAPSHOT_MARKER:
tk.handleOSOSnapshotMarker(cmd)
case POOL_CHANGE:
tk.handlePoolChange(cmd)
case TK_ENABLE_FLUSH:
tk.handleFlushStateChange(cmd)
case TK_DISABLE_FLUSH:
tk.handleFlushStateChange(cmd)
case STORAGE_SNAP_DONE:
tk.handleFlushDone(cmd)
case MUT_MGR_ABORT_DONE:
tk.handleFlushAbortDone(cmd)
case TK_GET_KEYSPACE_HWT:
tk.handleGetKeyspaceHWT(cmd)
case INDEXER_INIT_PREP_RECOVERY:
tk.handleInitPrepRecovery(cmd)
case INDEXER_PREPARE_DONE:
tk.handlePrepareDone(cmd)
case TK_INIT_BUILD_DONE_ACK:
tk.handleInitBuildDoneAck(cmd)
case TK_ADD_INSTANCE_FAIL:
tk.handleAddInstanceFail(cmd)
case TK_MERGE_STREAM_ACK:
tk.handleMergeStreamAck(cmd)
case STREAM_REQUEST_DONE:
tk.handleStreamRequestDone(cmd)
case INDEXER_RECOVERY_DONE:
tk.handleRecoveryDone(cmd)
case CONFIG_SETTINGS_UPDATE:
tk.handleConfigUpdate(cmd)
case UPDATE_INDEX_INSTANCE_MAP:
tk.handleUpdateIndexInstMap(cmd)
case UPDATE_INDEX_PARTITION_MAP:
tk.handleUpdateIndexPartnMap(cmd)
case INDEX_PROGRESS_STATS:
tk.handleStats(cmd)
case INDEXER_PAUSE:
tk.handleIndexerPause(cmd)
case INDEXER_PREPARE_UNPAUSE:
tk.handlePrepareUnpause(cmd)
case INDEXER_RESUME:
tk.handleIndexerResume(cmd)
case INDEXER_ABORT_RECOVERY:
tk.handleAbortRecovery(cmd)
default:
logging.Errorf("Timekeeper::handleSupvervisorCommands "+
"Received Unknown Command %v", cmd)
common.CrashOnError(errors.New("Unknown Command On Supervisor Channel"))
}
}
func (tk *timekeeper) handleStreamOpen(cmd Message) {
logging.Debugf("Timekeeper::handleStreamOpen %v", cmd)
streamId := cmd.(*MsgStreamUpdate).GetStreamId()
keyspaceId := cmd.(*MsgStreamUpdate).GetKeyspaceId()
restartTs := cmd.(*MsgStreamUpdate).GetRestartTs()
rollbackTime := cmd.(*MsgStreamUpdate).GetRollbackTime()
async := cmd.(*MsgStreamUpdate).GetAsync()
sessionId := cmd.(*MsgStreamUpdate).GetSessionId()
collectionId := cmd.(*MsgStreamUpdate).GetCollectionId()
enableOSO := cmd.(*MsgStreamUpdate).EnableOSO()
tk.lock.Lock()
defer tk.lock.Unlock()
if tk.ss.streamStatus[streamId] != STREAM_ACTIVE {
tk.ss.initNewStream(streamId)
logging.Infof("Timekeeper::handleStreamOpen Stream %v "+
"State Changed to ACTIVE", streamId)
}
status := tk.ss.streamKeyspaceIdStatus[streamId][keyspaceId]
switch status {
//fresh start or recovery
case STREAM_INACTIVE, STREAM_PREPARE_DONE:
tk.ss.initKeyspaceIdInStream(streamId, keyspaceId)
if restartTs != nil {
tk.ss.streamKeyspaceIdRestartTsMap[streamId][keyspaceId] = restartTs.Copy()
tk.ss.setHWTFromRestartTs(streamId, keyspaceId)
}
tk.ss.setRollbackTime(keyspaceId, rollbackTime)
tk.ss.streamKeyspaceIdAsyncMap[streamId][keyspaceId] = async
tk.ss.streamKeyspaceIdSessionId[streamId][keyspaceId] = sessionId
tk.ss.streamKeyspaceIdCollectionId[streamId][keyspaceId] = collectionId
tk.ss.streamKeyspaceIdEnableOSO[streamId][keyspaceId] = enableOSO
tk.addIndextoStream(cmd)
tk.startTimer(streamId, keyspaceId)
//repair
default:
//no-op
//reset timer for open stream
tk.ss.streamKeyspaceIdOpenTsMap[streamId][keyspaceId] = nil
tk.ss.streamKeyspaceIdStartTimeMap[streamId][keyspaceId] = uint64(0)
logging.Infof("Timekeeper::handleStreamOpen %v %v Status %v. "+
"Nothing to do.", streamId, keyspaceId, status)
}
tk.supvCmdch <- &MsgSuccess{}
}
func (tk *timekeeper) handleStreamClose(cmd Message) {
logging.Debugf("Timekeeper::handleStreamClose %v", cmd)
streamId := cmd.(*MsgStreamUpdate).GetStreamId()
tk.lock.Lock()
defer tk.lock.Unlock()
//cleanup all keyspaceIds from stream
for keyspaceId, _ := range tk.ss.streamKeyspaceIdStatus[streamId] {
tk.removeKeyspaceFromStream(streamId, keyspaceId, false)
}
tk.supvCmdch <- &MsgSuccess{}
}
func (tk *timekeeper) handleInitPrepRecovery(msg Message) {
keyspaceId := msg.(*MsgRecovery).GetKeyspaceId()
streamId := msg.(*MsgRecovery).GetStreamId()
logging.Infof("Timekeeper::handleInitPrepRecovery %v %v",
streamId, keyspaceId)
tk.lock.Lock()
defer tk.lock.Unlock()
tk.prepareRecovery(streamId, keyspaceId)
tk.supvCmdch <- &MsgSuccess{}
}
func (tk *timekeeper) handlePrepareDone(cmd Message) {
logging.Infof("Timekeeper::handlePrepareDone %v", cmd)
streamId := cmd.(*MsgRecovery).GetStreamId()
keyspaceId := cmd.(*MsgRecovery).GetKeyspaceId()
tk.lock.Lock()
defer tk.lock.Unlock()
//if stream is in PREPARE_RECOVERY, check and init RECOVERY
if tk.ss.streamKeyspaceIdStatus[streamId][keyspaceId] == STREAM_PREPARE_RECOVERY {
logging.Infof("Timekeeper::handlePrepareDone Stream %v "+
"KeyspaceId %v State Changed to PREPARE_DONE", streamId, keyspaceId)
tk.ss.streamKeyspaceIdStatus[streamId][keyspaceId] = STREAM_PREPARE_DONE
switch streamId {
case common.MAINT_STREAM, common.INIT_STREAM:
if tk.checkKeyspaceReadyForRecovery(streamId, keyspaceId) {
tk.initiateRecovery(streamId, keyspaceId)
}
}
} else {
logging.Infof("Timekeeper::handlePrepareDone Unexpected PREPARE_DONE "+
"for StreamId %v KeyspaceId %v State %v", streamId, keyspaceId,
tk.ss.streamKeyspaceIdStatus[streamId][keyspaceId])
}
tk.supvCmdch <- &MsgSuccess{}
}
func (tk *timekeeper) handleAddIndextoStream(cmd Message) {
logging.Verbosef("Timekeeper::handleAddIndextoStream %v", cmd)
tk.lock.Lock()
defer tk.lock.Unlock()
tk.addIndextoStream(cmd)
tk.supvCmdch <- &MsgSuccess{}
}
func (tk *timekeeper) addIndextoStream(cmd Message) {
indexInstList := cmd.(*MsgStreamUpdate).GetIndexList()
buildTs := cmd.(*MsgStreamUpdate).GetTimestamp()
streamId := cmd.(*MsgStreamUpdate).GetStreamId()
keyspaceInRecovery := cmd.(*MsgStreamUpdate).KeyspaceInRecovery()
//If the index is in INITIAL state, store it in initialbuild map
for _, idx := range indexInstList {
tk.ss.streamKeyspaceIdIndexCountMap[streamId][idx.Defn.KeyspaceId(streamId)] += 1
logging.Infof("Timekeeper::addIndextoStream IndexCount %v", tk.ss.streamKeyspaceIdIndexCountMap)
// buildInfo can be reomved when the corresponding is closed. A stream can be closed for
// various condition, such as recovery. When the stream is re-opened, index will be added back
// to the stream. It is necesasry to ensure that buildInfo is added back accordingly to ensure
// that build index will converge.
if _, ok := tk.indexBuildInfo[idx.InstId]; !ok {
if idx.State == common.INDEX_STATE_INITIAL ||
(streamId == common.INIT_STREAM && idx.State == common.INDEX_STATE_CATCHUP) {
logging.Infof("Timekeeper::addIndextoStream add BuildInfo index %v "+
"stream %v keyspaceId %v state %v waitForRecovery %v", idx.InstId, streamId,
idx.Defn.KeyspaceId(streamId), idx.State, keyspaceInRecovery)
tk.indexBuildInfo[idx.InstId] = &InitialBuildInfo{
indexInst: idx,
buildTs: buildTs,
waitForRecovery: keyspaceInRecovery,
}
}
}
}
}
func (tk *timekeeper) handleUpdateBuildTs(cmd Message) {
logging.Infof("Timekeeper::handleUpdateBuildTs %v", cmd)
tk.lock.Lock()
defer tk.lock.Unlock()
streamId := cmd.(*MsgStreamUpdate).GetStreamId()
keyspaceId := cmd.(*MsgStreamUpdate).GetKeyspaceId()
state := tk.ss.streamKeyspaceIdStatus[streamId][keyspaceId]
// Ignore UPDATE_BUILD_TS msg for inactive and recovery phase. For recovery,
// stream will get re-opened and build done will get re-computed.
if state == STREAM_INACTIVE || state == STREAM_PREPARE_DONE ||
state == STREAM_PREPARE_RECOVERY {
logging.Infof("Timekeeper::handleUpdateBuildTs Ignore updateBuildTs "+
"for KeyspaceId: %v StreamId: %v State: %v", keyspaceId, streamId, state)
tk.supvCmdch <- &MsgSuccess{}
return
}
tk.updateBuildTs(cmd)
//Check for possiblity of build done after buildTs is updated.
//In case of crash recovery, if there are no mutations, there is
//no flush happening, which can cause index to be in initial state.
if !tk.ss.checkAnyFlushPending(streamId, keyspaceId) &&
!tk.ss.checkAnyAbortPending(streamId, keyspaceId) {
lastFlushedTs := tk.ss.streamKeyspaceIdLastFlushedTsMap[streamId][keyspaceId]
tk.checkInitialBuildDone(streamId, keyspaceId, lastFlushedTs)
}
tk.supvCmdch <- &MsgSuccess{}
}
func (tk *timekeeper) updateBuildTs(cmd Message) {
buildTs := cmd.(*MsgStreamUpdate).GetTimestamp()
streamId := cmd.(*MsgStreamUpdate).GetStreamId()
keyspaceId := cmd.(*MsgStreamUpdate).GetKeyspaceId()
tk.setBuildTs(streamId, keyspaceId, buildTs)
}
func (tk *timekeeper) handleRemoveIndexFromStream(cmd Message) {
logging.Infof("Timekeeper::handleRemoveIndexFromStream %v", cmd)
tk.lock.Lock()
defer tk.lock.Unlock()
tk.removeIndexFromStream(cmd)
tk.supvCmdch <- &MsgSuccess{}
}
func (tk *timekeeper) handleRemoveKeyspaceFromStream(cmd Message) {
logging.Infof("Timekeeper::handleRemoveKeyspaceFromStream %v", cmd)
streamId := cmd.(*MsgStreamUpdate).GetStreamId()
keyspaceId := cmd.(*MsgStreamUpdate).GetKeyspaceId()
abort := cmd.(*MsgStreamUpdate).AbortRecovery()
tk.lock.Lock()
defer tk.lock.Unlock()
tk.removeKeyspaceFromStream(streamId, keyspaceId, abort)
tk.supvCmdch <- &MsgSuccess{}
}
func (tk *timekeeper) removeIndexFromStream(cmd Message) {
indexInstList := cmd.(*MsgStreamUpdate).GetIndexList()
streamId := cmd.(*MsgStreamUpdate).GetStreamId()
for _, idx := range indexInstList {
// This is only called for DROP INDEX. Therefore, it is OK to remove buildInfo.
// If this is used for other purpose, it is necessary to ensure there is no side effect.
if _, ok := tk.indexBuildInfo[idx.InstId]; ok {
logging.Infof("Timekeeper::removeIndexFromStream remove index %v from stream %v keyspaceId %v",
idx.InstId, streamId, idx.Defn.KeyspaceId(streamId))
delete(tk.indexBuildInfo, idx.InstId)
}
if tk.ss.streamKeyspaceIdIndexCountMap[streamId][idx.Defn.KeyspaceId(streamId)] == 0 {
logging.Fatalf("Timekeeper::removeIndexFromStream Invalid Internal "+
"State Detected. Index Count Underflow. Stream %s. KeyspaceId %s.", streamId,
idx.Defn.KeyspaceId(streamId))
} else {
tk.ss.streamKeyspaceIdIndexCountMap[streamId][idx.Defn.KeyspaceId(streamId)] -= 1
logging.Infof("Timekeeper::removeIndexFromStream IndexCount %v", tk.ss.streamKeyspaceIdIndexCountMap)
}
}
}
func (tk *timekeeper) removeKeyspaceFromStream(streamId common.StreamId,
keyspaceId string, abort bool) {
status := tk.ss.streamKeyspaceIdStatus[streamId][keyspaceId]
// This is called when closing a stream or remove a keyspace from a stream. If this
// is called during recovery, it is necessary to ensure that the buildInfo is added
// back to timekeeper accordingly.
for instId, idx := range tk.indexBuildInfo {
// remove buildInfo only for the given keyspaceId AND stream
if idx.indexInst.Defn.KeyspaceId(idx.indexInst.Stream) == keyspaceId &&
idx.indexInst.Stream == streamId {
logging.Infof("Timekeeper::removeKeyspaceFromStream remove index %v from stream %v keyspaceId %v",
instId, streamId, keyspaceId)
delete(tk.indexBuildInfo, instId)
}
}
//for a keyspaceId in prepareRecovery, only change the status
//actual cleanup happens in initRecovery
if status == STREAM_PREPARE_RECOVERY && !abort {
tk.ss.streamKeyspaceIdStatus[streamId][keyspaceId] = STREAM_PREPARE_RECOVERY
tk.ss.clearAllRepairState(streamId, keyspaceId)
} else {
tk.stopTimer(streamId, keyspaceId)
tk.ss.cleanupKeyspaceIdFromStream(streamId, keyspaceId)
}
}
func (tk *timekeeper) handleSync(cmd Message) {
logging.LazyTrace(func() string {
return fmt.Sprintf("Timekeeper::handleSync %v", cmd)
})
streamId := cmd.(*MsgKeyspaceHWT).GetStreamId()
keyspaceId := cmd.(*MsgKeyspaceHWT).GetKeyspaceId()
hwt := cmd.(*MsgKeyspaceHWT).GetHWT()
hwtOSO := cmd.(*MsgKeyspaceHWT).GetHWTOSO()
prevSnap := cmd.(*MsgKeyspaceHWT).GetPrevSnap()
sessionId := cmd.(*MsgKeyspaceHWT).GetSessionId()
tk.lock.Lock()
defer tk.lock.Unlock()
//check if keyspaceId is active in stream
if tk.checkKeyspaceActiveInStream(streamId, keyspaceId) == false {
logging.Tracef("Timekeeper::handleSync Received Sync for "+
"Inactive KeyspaceId %v Stream %v. Ignored.", keyspaceId, streamId)
return
}
//if there are no indexes for this keyspaceId and stream, ignore
if c, ok := tk.ss.streamKeyspaceIdIndexCountMap[streamId][keyspaceId]; !ok || c <= 0 {
logging.Tracef("Timekeeper::handleSync Ignore Sync for StreamId %v "+
"KeyspaceId %v. IndexCount %v. ", streamId, keyspaceId, c)
tk.supvCmdch <- &MsgSuccess{}
return
}
//if the session doesn't match, ignore
currSessionId := tk.ss.getSessionId(streamId, keyspaceId)
if sessionId != 0 && sessionId != currSessionId {
logging.Warnf("Timekeeper::handleSync Ignore Sync for StreamId %v "+
"KeyspaceId %v. SessionId %v. Current Session %v ", streamId, keyspaceId,
sessionId, currSessionId)
tk.supvCmdch <- &MsgSuccess{}
return
}
if _, ok := tk.ss.streamKeyspaceIdHWTMap[streamId][keyspaceId]; !ok {
logging.Debugf("Timekeeper::handleSync Ignoring Sync Marker "+
"for StreamId %v KeyspaceId %v. KeyspaceId Not Found.", streamId, keyspaceId)
tk.supvCmdch <- &MsgSuccess{}
return
}
//update HWT for the keyspaceId
tk.ss.updateHWT(streamId, keyspaceId, hwt, hwtOSO, prevSnap)
hwt.Free()
prevSnap.Free()
if hwtOSO != nil {
hwtOSO.Free()
}
tk.supvCmdch <- &MsgSuccess{}
}
func (tk *timekeeper) handleFlushDone(cmd Message) {
streamId := cmd.(*MsgMutMgrFlushDone).GetStreamId()
keyspaceId := cmd.(*MsgMutMgrFlushDone).GetKeyspaceId()
flushWasAborted := cmd.(*MsgMutMgrFlushDone).GetAborted()
tk.lock.Lock()
defer tk.lock.Unlock()
keyspaceIdLastFlushedTsMap := tk.ss.streamKeyspaceIdLastFlushedTsMap[streamId]
keyspaceIdFlushInProgressTsMap := tk.ss.streamKeyspaceIdFlushInProgressTsMap[streamId]
doneCh := tk.ss.streamKeyspaceIdFlushDone[streamId][keyspaceId]
if doneCh != nil {
close(doneCh)
tk.ss.streamKeyspaceIdFlushDone[streamId][keyspaceId] = nil
}
if flushWasAborted {
tk.processFlushAbort(streamId, keyspaceId)
return
}
if _, ok := keyspaceIdFlushInProgressTsMap[keyspaceId]; ok {
//store the last flushed TS
fts := keyspaceIdFlushInProgressTsMap[keyspaceId]
keyspaceIdLastFlushedTsMap[keyspaceId] = fts
if fts != nil {
tk.ss.updateLastMutationVbuuid(streamId, keyspaceId, fts)
}
// check if each flush time is snap aligned. If so, make a copy.
if fts != nil && fts.IsSnapAligned() {
tk.ss.streamKeyspaceIdLastSnapAlignFlushedTsMap[streamId][keyspaceId] = fts.Copy()
}
//update internal map to reflect flush is done
keyspaceIdFlushInProgressTsMap[keyspaceId] = nil
} else {
//this keyspaceId is already gone from this stream, may be because
//the index were dropped. Log and ignore.
logging.Warnf("Timekeeper::handleFlushDone Ignore Flush Done for Stream %v "+
"KeyspaceId %v. KeyspaceId Info Not Found", streamId, keyspaceId)
tk.supvCmdch <- &MsgSuccess{}
return
}
switch streamId {
case common.MAINT_STREAM:
tk.handleFlushDoneMaintStream(cmd)
case common.INIT_STREAM:
tk.handleFlushDoneInitStream(cmd)
default:
logging.Errorf("Timekeeper::handleFlushDone Invalid StreamId %v ", streamId)
}
}
func (tk *timekeeper) processFlushAbort(streamId common.StreamId, keyspaceId string) {
keyspaceIdLastFlushedTsMap := tk.ss.streamKeyspaceIdLastFlushedTsMap[streamId]
keyspaceIdFlushInProgressTsMap := tk.ss.streamKeyspaceIdFlushInProgressTsMap[streamId]
logging.Infof("Timekeeper::processFlushAbort Flush Abort Received %v %v"+
"\nFlushTs %v \nLastFlushTs %v", streamId, keyspaceId, keyspaceIdFlushInProgressTsMap[keyspaceId],
keyspaceIdLastFlushedTsMap[keyspaceId])
keyspaceIdFlushInProgressTsMap[keyspaceId] = nil
tsList := tk.ss.streamKeyspaceIdTsListMap[streamId][keyspaceId]
tsList.Init()
state := tk.ss.streamKeyspaceIdStatus[streamId][keyspaceId]
sessionId := tk.ss.getSessionId(streamId, keyspaceId)
switch state {
case STREAM_ACTIVE, STREAM_RECOVERY:
logging.Infof("Timekeeper::processFlushAbort %v %v %v Generate InitPrepRecovery",
streamId, keyspaceId, sessionId)
tk.supvRespch <- &MsgRecovery{mType: INDEXER_INIT_PREP_RECOVERY,
streamId: streamId,
keyspaceId: keyspaceId,
sessionId: sessionId}
case STREAM_PREPARE_RECOVERY:
//send message to stop running stream
logging.Infof("Timekeeper::processFlushAbort %v %v %v Generate PrepareRecovery",
streamId, keyspaceId, sessionId)
tk.supvRespch <- &MsgRecovery{mType: INDEXER_PREPARE_RECOVERY,
streamId: streamId,
keyspaceId: keyspaceId,
sessionId: sessionId}
case STREAM_INACTIVE:
logging.Errorf("Timekeeper::processFlushAbort Unexpected Flush Abort "+
"Received for Inactive StreamId %v keyspaceId %v sessionId %v ",
streamId, keyspaceId, sessionId)
default:
logging.Errorf("Timekeeper::processFlushAbort %v %v Invalid Stream State %v.",
streamId, keyspaceId, state)
}
tk.supvCmdch <- &MsgSuccess{}
}
func (tk *timekeeper) handleFlushDoneMaintStream(cmd Message) {
logging.LazyTrace(func() string {
return fmt.Sprintf("Timekeeper::handleFlushDoneMaintStream %v", cmd)
})
streamId := cmd.(*MsgMutMgrFlushDone).GetStreamId()
keyspaceId := cmd.(*MsgMutMgrFlushDone).GetKeyspaceId()
state := tk.ss.streamKeyspaceIdStatus[streamId][keyspaceId]
switch state {
case STREAM_ACTIVE, STREAM_RECOVERY:
//check if any of the initial build index is past its Build TS.
//Generate msg for Build Done and change the state of the index.
flushTs := tk.ss.streamKeyspaceIdLastFlushedTsMap[streamId][keyspaceId]
tk.checkInitialBuildDone(streamId, keyspaceId, flushTs)
tk.checkPendingStreamMerge(streamId, keyspaceId)
//check if there is any pending TS for this keyspaceId/stream.
//It can be processed now.
tk.processPendingTS(streamId, keyspaceId)
case STREAM_PREPARE_RECOVERY:
//check if there is any pending TS for this keyspaceId/stream.
//It can be processed now.
found := tk.processPendingTS(streamId, keyspaceId)
if !found && !tk.ss.checkAnyAbortPending(streamId, keyspaceId) {
sessionId := tk.ss.getSessionId(streamId, keyspaceId)
//send message to stop running stream
tk.supvRespch <- &MsgRecovery{mType: INDEXER_PREPARE_RECOVERY,
streamId: streamId,
keyspaceId: keyspaceId,
sessionId: sessionId}
}
case STREAM_INACTIVE:
logging.Errorf("Timekeeper::handleFlushDoneMaintStream Unexpected Flush Done "+
"Received for Inactive StreamId %v.", streamId)
default:
logging.Errorf("Timekeeper::handleFlushDoneMaintStream Invalid Stream State %v.", state)
}
tk.supvCmdch <- &MsgSuccess{}
}
func (tk *timekeeper) handleFlushDoneCatchupStream(cmd Message) {
logging.Tracef("Timekeeper::handleFlushDoneCatchupStream %v", cmd)
streamId := cmd.(*MsgMutMgrFlushDone).GetStreamId()
keyspaceId := cmd.(*MsgMutMgrFlushDone).GetKeyspaceId()
state := tk.ss.streamKeyspaceIdStatus[streamId][keyspaceId]
switch state {
case STREAM_ACTIVE:
if tk.checkCatchupStreamReadyToMerge(cmd) {
//if stream is ready to merge, further processing is
//not required, return from here.
return
}
//check if there is any pending TS for this keyspaceId/stream.
//It can be processed now.
tk.processPendingTS(streamId, keyspaceId)
case STREAM_PREPARE_RECOVERY:
//check if there is any pending TS for this keyspaceId/stream.
//It can be processed now.
found := tk.processPendingTS(streamId, keyspaceId)
//if no more pending TS were found and there is no abort or flush
//in progress recovery can be initiated
if !found {
if tk.checkKeyspaceReadyForRecovery(streamId, keyspaceId) {
tk.initiateRecovery(streamId, keyspaceId)
}
}
default:
logging.Errorf("Timekeeper::handleFlushDoneCatchupStream Invalid State Detected. "+
"CATCHUP_STREAM Can Only Be Flushed in ACTIVE or PREPARE_RECOVERY state. "+
"Current State %v.", state)
}
tk.supvCmdch <- &MsgSuccess{}
}
func (tk *timekeeper) handleFlushDoneInitStream(cmd Message) {
logging.LazyTrace(func() string {
return fmt.Sprintf("Timekeeper::handleFlushDoneInitStream %v", cmd)
})
streamId := cmd.(*MsgMutMgrFlushDone).GetStreamId()
keyspaceId := cmd.(*MsgMutMgrFlushDone).GetKeyspaceId()
state := tk.ss.streamKeyspaceIdStatus[streamId][keyspaceId]
switch state {
case STREAM_ACTIVE:
//check if any of the initial build index is past its Build TS.
//Generate msg for Build Done and change the state of the index.
if tk.checkAnyInitialStateIndex(keyspaceId) {
flushTs := tk.ss.streamKeyspaceIdLastFlushedTsMap[streamId][keyspaceId]
tk.checkInitialBuildDone(streamId, keyspaceId, flushTs)
} else {
//if flush is for INIT_STREAM, check if any index in CATCHUP has reached
//past the last flushed TS of the MAINT_STREAM for this keyspace.
//In such case, all indexes of the keyspace can merged to MAINT_STREAM.
lastFlushedTs := tk.ss.streamKeyspaceIdLastFlushedTsMap[streamId][keyspaceId]
if tk.checkInitStreamReadyToMerge(streamId, keyspaceId, lastFlushedTs) {
//if stream is ready to merge, further STREAM_ACTIVE processing is
//not required, return from here.
break
}
}
//check if there is any pending TS for this keyspaceId/stream.
//It can be processed now.
tk.processPendingTS(streamId, keyspaceId)
case STREAM_PREPARE_RECOVERY:
//check if there is any pending TS for this keyspaceId/stream.
//It can be processed now.
found := tk.processPendingTS(streamId, keyspaceId)
sessionId := tk.ss.getSessionId(streamId, keyspaceId)
if !found && !tk.ss.checkAnyAbortPending(streamId, keyspaceId) {
//send message to stop running stream
tk.supvRespch <- &MsgRecovery{mType: INDEXER_PREPARE_RECOVERY,
streamId: streamId,
keyspaceId: keyspaceId,
sessionId: sessionId}
}
default:
logging.Errorf("Timekeeper::handleFlushDoneInitStream Invalid State Detected. "+
"INIT_STREAM Can Only Be Flushed in ACTIVE or PREPARE_RECOVERY state. "+
"Current State %v.", state)
}
tk.supvCmdch <- &MsgSuccess{}
}
func (tk *timekeeper) handleFlushAbortDone(cmd Message) {
logging.Tracef("Timekeeper::handleFlushAbortDone %v", cmd)
streamId := cmd.(*MsgMutMgrFlushDone).GetStreamId()
keyspaceId := cmd.(*MsgMutMgrFlushDone).GetKeyspaceId()
tk.lock.Lock()
defer tk.lock.Unlock()
state := tk.ss.streamKeyspaceIdStatus[streamId][keyspaceId]
switch state {
case STREAM_ACTIVE:
logging.Errorf("Timekeeper::handleFlushAbortDone Unexpected Flush Abort "+
"Received for Active StreamId %v.", streamId)
case STREAM_PREPARE_RECOVERY:
sessionId := tk.ss.getSessionId(streamId, keyspaceId)
keyspaceIdFlushInProgressTsMap := tk.ss.streamKeyspaceIdFlushInProgressTsMap[streamId]
if _, ok := keyspaceIdFlushInProgressTsMap[keyspaceId]; ok {
//if there is flush in progress, mark it as done
if keyspaceIdFlushInProgressTsMap[keyspaceId] != nil {
keyspaceIdFlushInProgressTsMap[keyspaceId] = nil
doneCh := tk.ss.streamKeyspaceIdFlushDone[streamId][keyspaceId]
if doneCh != nil {
close(doneCh)
tk.ss.streamKeyspaceIdFlushDone[streamId][keyspaceId] = nil
}
}
} else {
//this keyspace is already gone from this stream, may be because
//the index were dropped. Log and ignore.
logging.Warnf("Timekeeper::handleFlushDone Ignore Flush Abort for Stream %v "+
"KeyspaceId %v SessionId %v. KeyspaceId Info Not Found", streamId, keyspaceId, sessionId)
tk.supvCmdch <- &MsgSuccess{}
return
}
//update abort status and initiate recovery
keyspaceIdAbortInProgressMap := tk.ss.streamKeyspaceIdAbortInProgressMap[streamId]
keyspaceIdAbortInProgressMap[keyspaceId] = false
//send message to stop running stream
tk.supvRespch <- &MsgRecovery{mType: INDEXER_PREPARE_RECOVERY,
streamId: streamId,
keyspaceId: keyspaceId,
sessionId: sessionId}
case STREAM_RECOVERY, STREAM_INACTIVE:
logging.Errorf("Timekeeper::handleFlushAbortDone Unexpected Flush Abort "+
"Received for StreamId %v KeyspaceId %v State %v", streamId, keyspaceId, state)
default:
logging.Errorf("Timekeeper::handleFlushAbortDone Invalid Stream State %v "+
"for StreamId %v KeyspaceId %v", state, streamId, keyspaceId)
}
tk.supvCmdch <- &MsgSuccess{}
}
func (tk *timekeeper) handleFlushStateChange(cmd Message) {
t := cmd.(*MsgTKToggleFlush).GetMsgType()
streamId := cmd.(*MsgTKToggleFlush).GetStreamId()
keyspaceId := cmd.(*MsgTKToggleFlush).GetKeyspaceId()
logging.Infof("Timekeeper::handleFlushStateChange Received Flush State Change "+
"for KeyspaceId: %v StreamId: %v Type: %v", keyspaceId, streamId, t)
tk.lock.Lock()
defer tk.lock.Unlock()
state := tk.ss.streamKeyspaceIdStatus[streamId][keyspaceId]
if state == STREAM_INACTIVE {
logging.Infof("Timekeeper::handleFlushStateChange Ignore Flush State Change "+
"for KeyspaceId: %v StreamId: %v Type: %v State: %v", keyspaceId, streamId, t, state)
tk.supvCmdch <- &MsgSuccess{}
return
}
switch t {
case TK_ENABLE_FLUSH:
//if keyspaceId is empty, enable for all keyspaceIds in the stream
keyspaceIdFlushEnabledMap := tk.ss.streamKeyspaceIdFlushEnabledMap[streamId]
if keyspaceId == "" {
for keyspaceId, _ := range keyspaceIdFlushEnabledMap {
keyspaceIdFlushEnabledMap[keyspaceId] = true
//if there are any pending TS, send that
tk.processPendingTS(streamId, keyspaceId)
}
} else {
keyspaceIdFlushEnabledMap[keyspaceId] = true
//if there are any pending TS, send that
tk.processPendingTS(streamId, keyspaceId)
}
case TK_DISABLE_FLUSH:
//TODO What about the flush which is already in progress
//if keyspaceId is empty, disable for all keyspaceIds in the stream
keyspaceIdFlushEnabledMap := tk.ss.streamKeyspaceIdFlushEnabledMap[streamId]
if keyspaceId == "" {
for keyspaceId, _ := range keyspaceIdFlushEnabledMap {
keyspaceIdFlushEnabledMap[keyspaceId] = false
}
} else {
keyspaceIdFlushEnabledMap[keyspaceId] = false
}
}
tk.supvCmdch <- &MsgSuccess{}
}
func (tk *timekeeper) handleGetKeyspaceHWT(cmd Message) {
logging.Debugf("Timekeeper::handleGetKeyspaceHWT %v", cmd)
streamId := cmd.(*MsgKeyspaceHWT).GetStreamId()
keyspaceId := cmd.(*MsgKeyspaceHWT).GetKeyspaceId()