[TD-1920]add mnode compact wal functions

src/common/inc/tglobal.h

@@ -142,6 +142,7 @@ extern int32_t tsMonitorInterval;
 extern int8_t tsEnableStream;
 
 // internal
+extern int8_t  tsCompactMnodeWal;
 extern int8_t  tsPrintAuth;
 extern int8_t  tscEmbedded;
 extern char    configDir[];

src/common/src/tglobal.c

@@ -176,6 +176,7 @@ int32_t tsMonitorInterval = 30;  // seconds
 int8_t  tsEnableStream = 1;
 
 // internal
+int8_t tsCompactMnodeWal = 0;
 int8_t tsPrintAuth = 0;
 int8_t tscEmbedded = 0;
 char   configDir[TSDB_FILENAME_LEN] = {0};

src/dnode/src/dnodeMain.c

@@ -40,6 +40,7 @@
 #include "dnodeShell.h"
 #include "dnodeTelemetry.h"
 #include "module.h"
+#include "mnode.h"
 
 #if !defined(_MODULE) || !defined(_TD_LINUX)
 int32_t moduleStart() { return 0; }

src/dnode/src/dnodeSystem.c

@@ -42,6 +42,8 @@ int32_t main(int32_t argc, char *argv[]) {
       }
     } else if (strcmp(argv[i], "-C") == 0) {
       dump_config = 1;
+    } else if (strcmp(argv[i], "--compact-mnode-wal") == 0) {
+      tsCompactMnodeWal = 1;
     } else if (strcmp(argv[i], "-V") == 0) {
 #ifdef _ACCT
       char *versionStr = "enterprise";

src/inc/mnode.h

@@ -73,6 +73,8 @@ int32_t mnodeProcessPeerReq(SMnodeMsg *pMsg);
 void    mnodeProcessPeerRsp(SRpcMsg *pMsg);
 int32_t mnodeRetriveAuth(char *user, char *spi, char *encrypt, char *secret, char *ckey);
 
+int32_t mnodeCompactWal();
+
 #ifdef __cplusplus
 }
 #endif

src/mnode/inc/mnodeSdb.h

@@ -106,6 +106,7 @@ int32_t  sdbGetId(void *pTable);
 uint64_t sdbGetVersion();
 bool     sdbCheckRowDeleted(void *pTable, void *pRow);
 
+int32_t mnodeCompactWal();
 #ifdef __cplusplus
 }
 #endif

src/mnode/src/mnodeMain.c

@@ -57,6 +57,12 @@ static SStep tsMnodeSteps[] = {
   {"show",    mnodeInitShow,    mnodeCleanUpShow}
 };
 
+/*
+static SStep tsMnodeCompactSteps[] = {
+  {"cluster", mnodeInitCluster, NULL},
+};
+*/
+
 static void mnodeInitTimer();
 static void mnodeCleanupTimer();
 static bool mnodeNeedStart() ;

src/mnode/src/mnodeSdb.c

@@ -450,6 +450,12 @@ int32_t sdbInit() {
   }
 
   tsSdbMgmt.status = SDB_STATUS_SERVING;
+
+  if (tsCompactMnodeWal) {
+    mnodeCompactWal();
+    exit(EXIT_SUCCESS);
+  }
+
   return TSDB_CODE_SUCCESS;
 }
 
@@ -1138,3 +1144,9 @@ static void *sdbWorkerFp(void *pWorker) {
 int32_t sdbGetReplicaNum() {
   return tsSdbMgmt.cfg.replica;
 }
+
+int32_t mnodeCompactWal() {
+  sdbInfo("vgId:1, start compact mnode wal...");
+
+  return 0;
+}
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