bug fixes (#1343)

* chore: logging level changes in sink

Signed-off-by: Jiyong Huang <huangjy@emqx.io>

* fix(conf): be compatible with the previous kuiper.yaml

Signed-off-by: Jiyong Huang <huangjy@emqx.io>

* chore: fix comment error

Signed-off-by: Jiyong Huang <huangjy@emqx.io>

etc/kuiper.yaml

@@ -43,7 +43,7 @@ rule:
   sendError: true
 
 sink:
-  # Control to disable cache or not. If it's set to true, then the cache will be disabled, otherwise, it will be enabled.
+  # Control to enable cache or not. If it's set to true, then the cache will be enabled, otherwise, it will be disabled.
   enableCache: false
 
   # The maximum number of messages to be cached in memory.
@@ -52,7 +52,7 @@ sink:
   # The maximum number of messages to be cached in the disk.
   maxDiskCache: 1024000
 
-  # The number of messages for a buffer page which is the unit to read/write to disk batchly to prevent frequent IO
+  # The number of messages for a buffer page which is the unit to read/write to disk in batch to prevent frequent IO
   bufferPageSize: 256
 
   # The interval in millisecond to resend the cached messages

internal/conf/conf.go

@@ -60,9 +60,9 @@ func (sc SinkConf) Validate() error {
 		Log.Warnf("maxDiskCache is less than 0, set to 1024000")
 		e["maxDiskCache"] = fmt.Errorf("maxDiskCache must be positive")
 	}
-	if sc.BufferPageSize < 0 {
+	if sc.BufferPageSize <= 0 {
 		sc.BufferPageSize = 256
-		Log.Warnf("bufferPageSize is less than 0, set to 256")
+		Log.Warnf("bufferPageSize is less than or equal to 0, set to 256")
 		e["bufferPageSize"] = fmt.Errorf("bufferPageSize must be positive")
 	}
 	if sc.ResendInterval < 0 {

internal/topo/node/cache/sync_cache.go

@@ -252,7 +252,7 @@ func (c *SyncCache) addCache(ctx api.StreamContext, item []map[string]interface{
 		ctx.GetLogger().Debugf("added cache to mem cache %v", c.memCache)
 	}
 	c.cacheLength++
-	ctx.GetLogger().Infof("added cache %d", c.cacheLength)
+	ctx.GetLogger().Debugf("added cache %d", c.cacheLength)
 }
 
 // deleteCache not thread safe!
@@ -277,12 +277,12 @@ func (c *SyncCache) deleteCache(ctx api.StreamContext) {
 			c.diskBufferPage = nil
 		}
 	}
-	ctx.GetLogger().Infof("deleted cache. cacheLength: %d, diskSize: %d, memCache: %v", c.cacheLength, c.diskSize, c.memCache)
+	ctx.GetLogger().Debugf("deleted cache. cacheLength: %d, diskSize: %d, memCache: %v", c.cacheLength, c.diskSize, c.memCache)
 }
 
 func (c *SyncCache) loadFromDisk(ctx api.StreamContext) {
 	// load page from the disk
-	ctx.GetLogger().Infof("loading from disk %d. cacheLength: %d, diskSize: %d", c.diskPageTail, c.cacheLength, c.diskSize)
+	ctx.GetLogger().Debugf("loading from disk %d. cacheLength: %d, diskSize: %d", c.diskPageTail, c.cacheLength, c.diskSize)
 	hotPage := newPage(c.cacheConf.BufferPageSize)
 	ok, err := c.store.Get(strconv.Itoa(c.diskPageHead), hotPage)
 	if err != nil {

internal/topo/node/sink_node.go

@@ -165,15 +165,21 @@ func (m *SinkNode) Open(ctx api.StreamContext, result chan<- error) {
 									if sconf.RunAsync {
 										go func() {
 											p := infra.SafeRun(func() error {
-												_ = doCollect(ctx, sink, data, stats, sconf)
+												err := doCollect(ctx, sink, data, stats, sconf)
+												if err != nil {
+													logger.Warnf("sink collect error: %v", err)
+												}
 												return nil
 											})
 											if p != nil {
 												infra.DrainError(ctx, p, result)
 											}
 										}()
 									} else {
-										_ = doCollect(ctx, sink, data, stats, sconf)
+										err := doCollect(ctx, sink, data, stats, sconf)
+										if err != nil {
+											logger.Warnf("sink collect error: %v", err)
+										}
 									}
 								case <-ctx.Done():
 									logger.Infof("sink node %s instance %d done", m.name, instance)