log(tmq): add some logs.

source/dnode/vnode/src/tq/tq.c

@@ -319,11 +319,15 @@ int32_t tqProcessSeekReq(STQ* pTq, int64_t sversion, char* msg, int32_t msgLen)
   SDecoder decoder;
   tDecoderInit(&decoder, (uint8_t*)msg, msgLen);
   if (tDecodeMqVgOffset(&decoder, &vgOffset) < 0) {
+    tqError("vgId:%d failed to decode seek msg", vgId);
     return -1;
   }
 
   tDecoderClear(&decoder);
 
+  tqDebug("topic:%s, vgId:%d process offset seek by consumer:0x%" PRIx64 ", req offset:%" PRId64,
+          vgOffset.offset.subKey, vgId, vgOffset.consumerId, vgOffset.offset.val.version);
+
   STqOffset* pOffset = &vgOffset.offset;
   if (pOffset->val.type != TMQ_OFFSET__LOG) {
     tqError("vgId:%d, subKey:%s invalid seek offset type:%d", vgId, pOffset->subKey, pOffset->val.type);
@@ -385,6 +389,9 @@ int32_t tqProcessSeekReq(STQ* pTq, int64_t sversion, char* msg, int32_t msgLen)
     return -1;
   }
 
+  tqDebug("topic:%s, vgId:%d consumer:0x%" PRIx64 " offset is update to:%" PRId64, vgOffset.offset.subKey, vgId,
+          vgOffset.consumerId, vgOffset.offset.val.version);
+
   return 0;
 }