enh: show leader ** if vnode can read and can't write

include/common/tmsg.h

@@ -1059,6 +1059,7 @@ typedef struct {
   int32_t vgId;
   int8_t  syncState;
   int8_t  syncRestore;
+  int8_t  syncCanRead;
   int64_t cacheUsage;
   int64_t numOfTables;
   int64_t numOfTimeSeries;

source/common/src/tmsg.c

@@ -992,15 +992,20 @@ int32_t tSerializeSStatusReq(void *buf, int32_t bufLen, SStatusReq *pReq) {
   if (tEncodeI32(&encoder, vlen) < 0) return -1;
   for (int32_t i = 0; i < vlen; ++i) {
     SVnodeLoad *pload = taosArrayGet(pReq->pVloads, i);
+    int64_t reserved = 0;
     if (tEncodeI32(&encoder, pload->vgId) < 0) return -1;
     if (tEncodeI8(&encoder, pload->syncState) < 0) return -1;
     if (tEncodeI8(&encoder, pload->syncRestore) < 0) return -1;
+    if (tEncodeI8(&encoder, pload->syncCanRead) < 0) return -1;
     if (tEncodeI64(&encoder, pload->cacheUsage) < 0) return -1;
     if (tEncodeI64(&encoder, pload->numOfTables) < 0) return -1;
     if (tEncodeI64(&encoder, pload->numOfTimeSeries) < 0) return -1;
     if (tEncodeI64(&encoder, pload->totalStorage) < 0) return -1;
     if (tEncodeI64(&encoder, pload->compStorage) < 0) return -1;
     if (tEncodeI64(&encoder, pload->pointsWritten) < 0) return -1;
+    if (tEncodeI64(&encoder, reserved) < 0) return -1;
+    if (tEncodeI64(&encoder, reserved) < 0) return -1;
+    if (tEncodeI64(&encoder, reserved) < 0) return -1;
   }
 
   // mnode loads
@@ -1065,15 +1070,20 @@ int32_t tDeserializeSStatusReq(void *buf, int32_t bufLen, SStatusReq *pReq) {
 
   for (int32_t i = 0; i < vlen; ++i) {
     SVnodeLoad vload = {0};
+    int64_t    reserved = 0;
     if (tDecodeI32(&decoder, &vload.vgId) < 0) return -1;
     if (tDecodeI8(&decoder, &vload.syncState) < 0) return -1;
     if (tDecodeI8(&decoder, &vload.syncRestore) < 0) return -1;
+    if (tDecodeI8(&decoder, &vload.syncCanRead) < 0) return -1;
     if (tDecodeI64(&decoder, &vload.cacheUsage) < 0) return -1;
     if (tDecodeI64(&decoder, &vload.numOfTables) < 0) return -1;
     if (tDecodeI64(&decoder, &vload.numOfTimeSeries) < 0) return -1;
     if (tDecodeI64(&decoder, &vload.totalStorage) < 0) return -1;
     if (tDecodeI64(&decoder, &vload.compStorage) < 0) return -1;
     if (tDecodeI64(&decoder, &vload.pointsWritten) < 0) return -1;
+    if (tDecodeI64(&decoder, &reserved) < 0) return -1;
+    if (tDecodeI64(&decoder, &reserved) < 0) return -1;
+    if (tDecodeI64(&decoder, &reserved) < 0) return -1;
     if (taosArrayPush(pReq->pVloads, &vload) == NULL) {
       terrno = TSDB_CODE_OUT_OF_MEMORY;
       return -1;

source/dnode/mnode/impl/inc/mndDef.h

@@ -328,6 +328,7 @@ typedef struct {
   int32_t    dnodeId;
   ESyncState syncState;
   bool       syncRestore;
+  bool       syncCanRead;
 } SVnodeGid;
 
 typedef struct {

source/dnode/mnode/impl/src/mndDnode.c

@@ -375,14 +375,18 @@ static int32_t mndProcessStatusReq(SRpcMsg *pReq) {
       }
       bool roleChanged = false;
       for (int32_t vg = 0; vg < pVgroup->replica; ++vg) {
-        if (pVgroup->vnodeGid[vg].dnodeId == statusReq.dnodeId) {
-          if (pVgroup->vnodeGid[vg].syncState != pVload->syncState ||
-              pVgroup->vnodeGid[vg].syncRestore != pVload->syncRestore) {
-            mInfo("vgId:%d, state changed by status msg, old state:%s restored:%d new state:%s restored:%d",
-                  pVgroup->vgId, syncStr(pVgroup->vnodeGid[vg].syncState), pVgroup->vnodeGid[vg].syncRestore,
-                  syncStr(pVload->syncState), pVload->syncRestore);
-            pVgroup->vnodeGid[vg].syncState = pVload->syncState;
-            pVgroup->vnodeGid[vg].syncRestore = pVload->syncRestore;
+        SVnodeGid *pGid = &pVgroup->vnodeGid[vg];
+        if (pGid->dnodeId == statusReq.dnodeId) {
+          if (pGid->syncState != pVload->syncState || pGid->syncRestore != pVload->syncRestore ||
+              pGid->syncCanRead != pVload->syncCanRead) {
+            mInfo(
+                "vgId:%d, state changed by status msg, old state:%s restored:%d canRead:%d new state:%s restored:%d "
+                "canRead:%d",
+                pVgroup->vgId, syncStr(pGid->syncState), pGid->syncRestore, pGid->syncCanRead,
+                syncStr(pVload->syncState), pVload->syncRestore, pVload->syncCanRead);
+            pGid->syncState = pVload->syncState;
+            pGid->syncRestore = pVload->syncRestore;
+            pGid->syncCanRead = pVload->syncCanRead;
             roleChanged = true;
           }
           break;

source/dnode/mnode/impl/src/mndMain.c

@@ -150,12 +150,16 @@ static void mndSetVgroupOffline(SMnode *pMnode, int32_t dnodeId, int64_t curMs)
 
     bool roleChanged = false;
     for (int32_t vg = 0; vg < pVgroup->replica; ++vg) {
-      if (pVgroup->vnodeGid[vg].dnodeId == dnodeId) {
-        if (pVgroup->vnodeGid[vg].syncState != TAOS_SYNC_STATE_OFFLINE) {
-          mInfo("vgId:%d, state changed by offline check, old state:%s restored:%d new state:error restored:0",
-                pVgroup->vgId, syncStr(pVgroup->vnodeGid[vg].syncState), pVgroup->vnodeGid[vg].syncRestore);
-          pVgroup->vnodeGid[vg].syncState = TAOS_SYNC_STATE_OFFLINE;
-          pVgroup->vnodeGid[vg].syncRestore = 0;
+      SVnodeGid *pGid = &pVgroup->vnodeGid[vg];
+      if (pGid->dnodeId == dnodeId) {
+        if (pGid->syncState != TAOS_SYNC_STATE_OFFLINE) {
+          mInfo(
+              "vgId:%d, state changed by offline check, old state:%s restored:%d canRead:%d new state:error restored:0 "
+              "canRead:0",
+              pVgroup->vgId, syncStr(pGid->syncState), pGid->syncRestore, pGid->syncCanRead);
+          pGid->syncState = TAOS_SYNC_STATE_OFFLINE;
+          pGid->syncRestore = 0;
+          pGid->syncCanRead = 0;
           roleChanged = true;
         }
         break;

source/dnode/mnode/impl/src/mndVgroup.c

@@ -186,6 +186,7 @@ static int32_t mndVgroupActionUpdate(SSdb *pSdb, SVgObj *pOld, SVgObj *pNew) {
       if (pNewGid->dnodeId == pOldGid->dnodeId) {
         pNewGid->syncState = pOldGid->syncState;
         pNewGid->syncRestore = pOldGid->syncRestore;
+        pNewGid->syncCanRead = pOldGid->syncCanRead;
       }
     }
   }
@@ -696,8 +697,16 @@ static int32_t mndRetrieveVgroups(SRpcMsg *pReq, SShowObj *pShow, SSDataBlock *p
         if (!exist) {
           strcpy(role, "dropping");
         } else if (online) {
-          bool show = (pVgroup->vnodeGid[i].syncState == TAOS_SYNC_STATE_LEADER && !pVgroup->vnodeGid[i].syncRestore);
-          snprintf(role, sizeof(role), "%s%s", syncStr(pVgroup->vnodeGid[i].syncState), show ? "*" : "");
+          char *star = "";
+          if (pVgroup->vnodeGid[i].syncState == TAOS_SYNC_STATE_LEADER) {
+            if (!pVgroup->vnodeGid[i].syncRestore && !pVgroup->vnodeGid[i].syncCanRead) {
+              star = "**";
+            } else if (!pVgroup->vnodeGid[i].syncRestore && pVgroup->vnodeGid[i].syncCanRead) {
+              star = "*";
+            } else {
+            }
+          }
+          snprintf(role, sizeof(role), "%s%s", syncStr(pVgroup->vnodeGid[i].syncState), star);
         } else {
         }
         STR_WITH_MAXSIZE_TO_VARSTR(buf1, role, pShow->pMeta->pSchemas[cols].bytes);

source/dnode/vnode/src/vnd/vnodeQuery.c

@@ -380,6 +380,7 @@ int32_t vnodeGetLoad(SVnode *pVnode, SVnodeLoad *pLoad) {
   pLoad->vgId = TD_VID(pVnode);
   pLoad->syncState = state.state;
   pLoad->syncRestore = state.restored;
+  pLoad->syncCanRead = state.canRead;
   pLoad->cacheUsage = tsdbCacheGetUsage(pVnode);
   pLoad->numOfTables = metaGetTbNum(pVnode->pMeta);
   pLoad->numOfTimeSeries = metaGetTimeSeriesNum(pVnode->pMeta);