feat: support medium sync policy in CCR tasks

pkg/ccr/base/spec.go

@@ -1595,6 +1595,51 @@ func (s *Spec) GetCreateTableSql(tableName string) (string, error) {
 
 	return createSql, nil
 }
+func (s *Spec) ModifyPartitionProperty(destTableName string, batchModifyPartitionsInfo *record.BatchModifyPartitionsInfo) error {
+	if batchModifyPartitionsInfo == nil || len(batchModifyPartitionsInfo.Infos) == 0 {
+		log.Warnf("empty partition infos, skip modify partition property")
+		return nil
+	}
+
+	dbName := utils.FormatKeywordName(s.Database)
+	destTableName = utils.FormatKeywordName(destTableName)
+
+	var lastErr error
+	successCount := 0
+	for _, partitionInfo := range batchModifyPartitionsInfo.Infos {
+		if partitionInfo.DataProperty == nil || partitionInfo.DataProperty.StorageMedium == "" {
+			log.Warnf("partition %d has no storage medium, skip modify partition property", partitionInfo.PartitionId)
+			continue
+		}
+
+		sql := fmt.Sprintf("ALTER TABLE %s.%s MODIFY PARTITION %s SET (\"storage_medium\" = \"%s\")",
+			dbName, destTableName, utils.FormatKeywordName(partitionInfo.PartitionName), partitionInfo.DataProperty.StorageMedium)
+
+		log.Infof("modify partition property sql: %s", sql)
+		if err := s.Exec(sql); err != nil {
+			errMsg := err.Error()
+			// Skip if partition not found (partition may have been dropped)
+			if strings.Contains(errMsg, "does not exist") || strings.Contains(errMsg, "not found") {
+				log.Warnf("partition %s not found, skip: %v", partitionInfo.PartitionName, err)
+				continue
+			}
+			// For other errors, record and continue to try remaining partitions
+			log.Warnf("modify partition %s property failed: %v", partitionInfo.PartitionName, err)
+			lastErr = err
+		} else {
+			successCount++
+		}
+	}
+
+	// Return error if any partition modification failed (except partition not found)
+	if lastErr != nil {
+		return xerror.Wrapf(lastErr, xerror.Normal,
+			"modify partition storage medium failed, success: %d, total: %d",
+			successCount, len(batchModifyPartitionsInfo.Infos))
+	}
+
+	return nil
+}
 
 // Determine whether the error are network related, eg connection refused, connection reset, exposed from net packages.
 func isNetworkRelated(err error) bool {

pkg/ccr/base/specer.go

@@ -66,6 +66,7 @@ type Specer interface {
 	AddPartition(destTableName string, addPartition *record.AddPartition) error
 	DropPartition(destTableName string, dropPartition *record.DropPartition) error
 	RenamePartition(destTableName, oldPartition, newPartition string) error
+	ModifyPartitionProperty(destTableName string, batchModifyPartitionsInfo *record.BatchModifyPartitionsInfo) error
 
 	LightningIndexChange(tableAlias string, changes *record.ModifyTableAddOrDropInvertedIndices) error
 	BuildIndex(tableAlias string, buildIndex *record.IndexChangeJob) error

pkg/ccr/handle/create_table.go

@@ -1,6 +1,8 @@
 package handle
 
 import (
+	"fmt"
+	"regexp"
 	"strings"
 
 	"github.com/selectdb/ccr_syncer/pkg/ccr"
@@ -18,6 +20,70 @@ type CreateTableHandle struct {
 	IdempotentJobHandle[*record.CreateTable]
 }
 
+// Check if error message indicates storage medium or capacity related issues
+func isStorageMediumError(errMsg string) bool {
+	// Doris returns "Failed to find enough backend" for storage/capacity issues
+	return strings.Contains(strings.ToLower(errMsg), "failed to find enough backend")
+}
+
+// Set specific property in CREATE TABLE SQL
+func setPropertyInCreateTableSql(createSql string, key string, value string) string {
+	// Add property to PROPERTIES clause
+	pattern := `(?i)(PROPERTIES\s*\(\s*)`
+	replacement := fmt.Sprintf(`${1}"%s" = "%s", `, key, value)
+	createSql = regexp.MustCompile(pattern).ReplaceAllString(createSql, replacement)
+
+	// Clean up trailing comma if PROPERTIES was empty
+	return ccr.FilterTailingCommaFromCreateTableSql(createSql)
+}
+
+// Set specific storage_medium in CREATE TABLE SQL
+func setStorageMediumInCreateTableSql(createSql string, medium string) string {
+	// Remove existing storage_medium first
+	createSql = ccr.FilterStorageMediumFromCreateTableSql(createSql)
+	return setPropertyInCreateTableSql(createSql, "storage_medium", medium)
+}
+
+// Set specific medium_allocation_mode in CREATE TABLE SQL
+func setMediumAllocationModeInCreateTableSql(createSql string, mode string) string {
+	// Remove existing medium_allocation_mode first
+	createSql = ccr.FilterMediumAllocationModeFromCreateTableSql(createSql)
+	return setPropertyInCreateTableSql(createSql, "medium_allocation_mode", mode)
+}
+
+// Process CREATE TABLE SQL according to storage medium policy
+func processCreateTableSqlByMediumPolicy(j *ccr.Job, createTable *record.CreateTable) {
+	storageMedium := j.StorageMedium
+	mediumAllocationMode := j.MediumAllocationMode
+
+	// Process storage_medium
+	switch storageMedium {
+	case ccr.StorageMediumSameWithUpstream:
+		// Keep upstream storage_medium unchanged
+		log.Infof("using same_with_upstream storage medium, keeping original storage_medium")
+
+	case ccr.StorageMediumHDD:
+		log.Infof("using hdd storage medium, setting storage_medium to hdd")
+		createTable.Sql = setStorageMediumInCreateTableSql(createTable.Sql, "hdd")
+
+	case ccr.StorageMediumSSD:
+		log.Infof("using ssd storage medium, setting storage_medium to ssd")
+		createTable.Sql = setStorageMediumInCreateTableSql(createTable.Sql, "ssd")
+
+	default:
+		log.Warnf("unknown storage medium: %s, falling back to filter storage_medium", storageMedium)
+		if ccr.FeatureFilterStorageMedium {
+			createTable.Sql = ccr.FilterStorageMediumFromCreateTableSql(createTable.Sql)
+		}
+	}
+
+	// Process medium_allocation_mode from CCR job parameter
+	if mediumAllocationMode != "" {
+		log.Infof("setting medium_allocation_mode to %s", mediumAllocationMode)
+		createTable.Sql = setMediumAllocationModeInCreateTableSql(createTable.Sql, mediumAllocationMode)
+	}
+}
+
 func (h *CreateTableHandle) Handle(j *ccr.Job, commitSeq int64, createTable *record.CreateTable) error {
 	if j.SyncType != ccr.DBSync {
 		return xerror.Errorf(xerror.Normal, "invalid sync type: %v", j.SyncType)
@@ -68,33 +134,56 @@ func (h *CreateTableHandle) Handle(j *ccr.Job, commitSeq int64, createTable *rec
 		}
 	}
 
-	if ccr.FeatureFilterStorageMedium {
-		createTable.Sql = ccr.FilterStorageMediumFromCreateTableSql(createTable.Sql)
-	}
+	// Process SQL according to storage medium policy
+	processCreateTableSqlByMediumPolicy(j, createTable)
 	createTable.Sql = ccr.FilterDynamicPartitionStoragePolicyFromCreateTableSql(createTable.Sql)
 
+	// Execute create table
 	if err := j.IDest.CreateTableOrView(createTable, j.Src.Database); err != nil {
 		errMsg := err.Error()
+
+		// Skip unsupported features
 		if strings.Contains(errMsg, "Can not found function") {
 			log.Warnf("skip creating table/view because the UDF function is not supported yet: %s", errMsg)
 			return nil
-		} else if strings.Contains(errMsg, "Can not find resource") {
+		}
+		if strings.Contains(errMsg, "Can not find resource") {
 			log.Warnf("skip creating table/view for the resource is not supported yet: %s", errMsg)
 			return nil
-		} else if createTable.IsCreateView() && strings.Contains(errMsg, "Unknown column") {
+		}
+
+		// Trigger partial snapshot for recoverable errors
+		if createTable.IsCreateView() && strings.Contains(errMsg, "Unknown column") {
 			log.Warnf("create view but the column is not found, trigger partial snapshot, commit seq: %d, msg: %s",
 				commitSeq, errMsg)
 			replace := false // new view no need to replace
 			isView := true
 			return j.NewPartialSnapshot(createTable.TableId, createTable.TableName, nil, replace, isView)
 		}
-		if len(createTable.TableName) > 0 && ccr.IsSessionVariableRequired(errMsg) { // ignore doris 2.0.3
+		if len(createTable.TableName) > 0 && ccr.IsSessionVariableRequired(errMsg) {
 			log.Infof("a session variable is required to create table %s, force partial snapshot, commit seq: %d, msg: %s",
 				createTable.TableName, commitSeq, errMsg)
 			replace := false // new table no need to replace
 			isView := false
 			return j.NewPartialSnapshot(createTable.TableId, createTable.TableName, nil, replace, isView)
 		}
+
+		// Storage medium related error: pause job and require manual intervention
+		if isStorageMediumError(errMsg) {
+			log.Errorf("create table %s failed due to storage medium issue, job will be paused. "+
+				"Current storage_medium=%s. Please check target cluster resources or update storage_medium via API. Error: %s",
+				createTable.TableName, j.StorageMedium, errMsg)
+			return xerror.Panicf(xerror.Normal,
+				"Create table failed: storage medium issue for table %s. "+
+					"Current storage_medium=%s. Possible causes:\n"+
+					"1. Storage medium (%s) not available on target cluster\n"+
+					"2. Insufficient disk capacity\n"+
+					"3. Replication number exceeds available BE nodes\n"+
+					"Please check target cluster configuration or update storage_medium via /update_storage_medium API. "+
+					"Original error: %s",
+				createTable.TableName, j.StorageMedium, j.StorageMedium, errMsg)
+		}
+
 		return xerror.Wrapf(err, xerror.Normal, "create table %d", createTable.TableId)
 	}
 

pkg/ccr/handle/modify_partitions.go

@@ -0,0 +1,105 @@
+package handle
+
+import (
+	"strings"
+
+	"github.com/selectdb/ccr_syncer/pkg/ccr"
+	"github.com/selectdb/ccr_syncer/pkg/ccr/record"
+	festruct "github.com/selectdb/ccr_syncer/pkg/rpc/kitex_gen/frontendservice"
+	"github.com/selectdb/ccr_syncer/pkg/xerror"
+	log "github.com/sirupsen/logrus"
+)
+
+func init() {
+	ccr.RegisterJobHandle[*record.BatchModifyPartitionsInfo](festruct.TBinlogType_MODIFY_PARTITIONS, &ModifyPartitionsHandle{})
+}
+
+type ModifyPartitionsHandle struct {
+	// The modify partitions binlog is idempotent
+	IdempotentJobHandle[*record.BatchModifyPartitionsInfo]
+}
+
+// Filter partitions that have storage medium changes and are not temporary partitions
+func filterStorageMediumChanges(infos []*record.ModifyPartitionInfo) []*record.ModifyPartitionInfo {
+	filtered := make([]*record.ModifyPartitionInfo, 0)
+	for _, info := range infos {
+		// Skip temporary partitions (they are not synced)
+		if info.IsTempPartition {
+			log.Debugf("skip temporary partition %d", info.PartitionId)
+			continue
+		}
+		// Only process partitions with storage medium specified
+		if info.DataProperty != nil && info.DataProperty.StorageMedium != "" {
+			filtered = append(filtered, info)
+		}
+	}
+	return filtered
+}
+
+func (h *ModifyPartitionsHandle) Handle(j *ccr.Job, commitSeq int64, batchModifyPartitionsInfo *record.BatchModifyPartitionsInfo) error {
+	// Skip if using fixed storage medium (hdd/ssd)
+	// Only process when using same_with_upstream storage medium
+	if j.StorageMedium == ccr.StorageMediumHDD ||
+		j.StorageMedium == ccr.StorageMediumSSD {
+		log.Infof("skip modify partitions for storage_medium is fixed to %s", j.StorageMedium)
+		return nil
+	}
+
+	// Safety check: ensure we have partition infos to process
+	if batchModifyPartitionsInfo == nil || len(batchModifyPartitionsInfo.Infos) == 0 {
+		log.Warnf("batch modify partitions info is empty or nil, skip")
+		return nil
+	}
+
+	// Filter to only process storage medium changes
+	filteredInfos := filterStorageMediumChanges(batchModifyPartitionsInfo.Infos)
+	if len(filteredInfos) == 0 {
+		log.Infof("no storage medium changes in modify partitions binlog, skip")
+		return nil
+	}
+	log.Infof("processing %d partition storage medium changes out of %d total modifications",
+		len(filteredInfos), len(batchModifyPartitionsInfo.Infos))
+
+	// Update to use filtered infos
+	batchModifyPartitionsInfo.Infos = filteredInfos
+
+	// Get table ID from the first partition info (all partitions should belong to the same table)
+	tableId := batchModifyPartitionsInfo.GetTableId()
+	if tableId <= 0 {
+		log.Warnf("invalid table ID: %d, skip modify partitions", tableId)
+		return nil
+	}
+
+	// Check if it's a materialized view table
+	if isAsyncMv, err := j.IsMaterializedViewTable(tableId); err != nil {
+		return err
+	} else if isAsyncMv {
+		log.Infof("skip modify partitions for materialized view table %d", tableId)
+		return nil
+	}
+
+	// Get destination table name
+	destTableName, err := j.GetDestNameBySrcId(tableId)
+	if err != nil {
+		errMsg := err.Error()
+		// If table not found in mapping, it may not be synced yet or already dropped
+		if strings.Contains(errMsg, "not found") || strings.Contains(errMsg, "does not exist") {
+			log.Warnf("table %d not found in dest, skip modify partitions: %v", tableId, err)
+			return nil
+		}
+		// Other errors (network, etc.): return error to retry
+		return xerror.Wrapf(err, xerror.Normal, "failed to get dest table name for table %d", tableId)
+	}
+
+	// Execute modify partition property
+	// Note: ModifyPartition only updates FE metadata, actual BE storage migration is async
+	// So this SQL won't fail due to backend resource issues
+	if err := j.Dest.ModifyPartitionProperty(destTableName, batchModifyPartitionsInfo); err != nil {
+		// Return error to let job framework retry (network issues, etc.)
+		return xerror.Wrapf(err, xerror.Normal, "modify partition storage medium failed for table %s", destTableName)
+	}
+
+	log.Infof("successfully modified storage medium for %d partitions in table %s",
+		len(filteredInfos), destTableName)
+	return nil
+}