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enh: drop qnode and snode on dnode

This commit is contained in:
Shengliang Guan 2022-06-22 15:41:30 +08:00
parent 9f96667f86
commit 8cdbe63952
11 changed files with 537 additions and 21 deletions
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10
source/dnode/mnode/impl/inc/mndQnode.h
View File

@ -24,12 +24,12 @@ extern "C" {
#define QNODE_LOAD_VALUE(pQnode) (pQnode ? (pQnode->load.numOfQueryInQueue + pQnode->load.numOfFetchInQueue) : 0)
int32_t mndInitQnode(SMnode *pMnode);
void mndCleanupQnode(SMnode *pMnode);
int32_t mndInitQnode(SMnode *pMnode);
void mndCleanupQnode(SMnode *pMnode);
SQnodeObj *mndAcquireQnode(SMnode *pMnode, int32_t qnodeId);
void mndReleaseQnode(SMnode *pMnode, SQnodeObj *pObj);
int32_t mndCreateQnodeList(SMnode *pMnode, SArray** pList, int32_t limit);
void mndReleaseQnode(SMnode *pMnode, SQnodeObj *pObj);
int32_t mndCreateQnodeList(SMnode *pMnode, SArray **pList, int32_t limit);
int32_t mndSetDropQnodeInfoToTrans(SMnode *pMnode, STrans *pTrans, SQnodeObj *pObj);
#ifdef __cplusplus
}

9
source/dnode/mnode/impl/inc/mndSnode.h
View File

@ -22,9 +22,12 @@
extern "C" {
#endif
int32_t mndInitSnode(SMnode *pMnode);
void mndCleanupSnode(SMnode *pMnode);
SEpSet mndAcquireEpFromSnode(SMnode *pMnode, const SSnodeObj *pSnode);
int32_t mndInitSnode(SMnode *pMnode);
void mndCleanupSnode(SMnode *pMnode);
SSnodeObj *mndAcquireSnode(SMnode *pMnode, int32_t qnodeId);
void mndReleaseSnode(SMnode *pMnode, SSnodeObj *pObj);
SEpSet mndAcquireEpFromSnode(SMnode *pMnode, const SSnodeObj *pSnode);
int32_t mndSetDropSnodeInfoToTrans(SMnode *pMnode, STrans *pTrans, SSnodeObj *pObj);
#ifdef __cplusplus
}

26
source/dnode/mnode/impl/src/mndDnode.c
View File

@ -19,6 +19,7 @@
#include "mndMnode.h"
#include "mndQnode.h"
#include "mndShow.h"
#include "mndSnode.h"
#include "mndTrans.h"
#include "mndUser.h"
#include "mndVgroup.h"
@ -370,7 +371,8 @@ static int32_t mndProcessStatusReq(SRpcMsg *pReq) {
SMnodeObj *pObj = mndAcquireMnode(pMnode, pDnode->id);
if (pObj != NULL) {
if (pObj->state != statusReq.mload.syncState) {
mInfo("dnode:%d, mnode syncstate from %s to %s", pObj->id, syncStr(pObj->state), syncStr(statusReq.mload.syncState));
mInfo("dnode:%d, mnode syncstate from %s to %s", pObj->id, syncStr(pObj->state),
syncStr(statusReq.mload.syncState));
pObj->state = statusReq.mload.syncState;
pObj->stateStartTime = taosGetTimestampMs();
}
@ -538,7 +540,8 @@ _OVER:
return code;
}
static int32_t mndDropDnode(SMnode *pMnode, SRpcMsg *pReq, SDnodeObj *pDnode, SMnodeObj *pMObj, int32_t numOfVnodes) {
static int32_t mndDropDnode(SMnode *pMnode, SRpcMsg *pReq, SDnodeObj *pDnode, SMnodeObj *pMObj, SQnodeObj *pQObj,
SSnodeObj *pSObj, int32_t numOfVnodes) {
int32_t code = -1;
SSdbRaw *pRaw = NULL;
STrans *pTrans = NULL;
@ -562,6 +565,17 @@ static int32_t mndDropDnode(SMnode *pMnode, SRpcMsg *pReq, SDnodeObj *pDnode, SM
mInfo("trans:%d, mnode on dnode:%d will be dropped", pTrans->id, pDnode->id);
if (mndSetDropMnodeInfoToTrans(pMnode, pTrans, pMObj) != 0) goto _OVER;
}
if (pQObj != NULL) {
mInfo("trans:%d, qnode on dnode:%d will be dropped", pTrans->id, pDnode->id);
if (mndSetDropQnodeInfoToTrans(pMnode, pTrans, pQObj) != 0) goto _OVER;
}
if (pSObj != NULL) {
mInfo("trans:%d, snode on dnode:%d will be dropped", pTrans->id, pDnode->id);
if (mndSetDropSnodeInfoToTrans(pMnode, pTrans, pSObj) != 0) goto _OVER;
}
if (numOfVnodes > 0) {
mInfo("trans:%d, %d vnodes on dnode:%d will be dropped", pTrans->id, numOfVnodes, pDnode->id);
if (mndSetMoveVgroupsInfoToTrans(pMnode, pTrans, pDnode->id) != 0) goto _OVER;
@ -581,6 +595,8 @@ static int32_t mndProcessDropDnodeReq(SRpcMsg *pReq) {
int32_t code = -1;
SDnodeObj *pDnode = NULL;
SMnodeObj *pMObj = NULL;
SQnodeObj *pQObj = NULL;
SSnodeObj *pSObj = NULL;
SMDropMnodeReq dropReq = {0};
if (tDeserializeSCreateDropMQSBNodeReq(pReq->pCont, pReq->contLen, &dropReq) != 0) {
@ -601,6 +617,8 @@ static int32_t mndProcessDropDnodeReq(SRpcMsg *pReq) {
goto _OVER;
}
pQObj = mndAcquireQnode(pMnode, dropReq.dnodeId);
pSObj = mndAcquireSnode(pMnode, dropReq.dnodeId);
pMObj = mndAcquireMnode(pMnode, dropReq.dnodeId);
if (pMObj != NULL) {
if (sdbGetSize(pMnode->pSdb, SDB_MNODE) <= 1) {
@ -627,7 +645,7 @@ static int32_t mndProcessDropDnodeReq(SRpcMsg *pReq) {
goto _OVER;
}
code = mndDropDnode(pMnode, pReq, pDnode, pMObj, numOfVnodes);
code = mndDropDnode(pMnode, pReq, pDnode, pMObj, pQObj, pSObj, numOfVnodes);
if (code == 0) code = TSDB_CODE_ACTION_IN_PROGRESS;
_OVER:
@ -637,6 +655,8 @@ _OVER:
mndReleaseDnode(pMnode, pDnode);
mndReleaseMnode(pMnode, pMObj);
mndReleaseQnode(pMnode, pQObj);
mndReleaseSnode(pMnode, pSObj);
return code;
}

12
source/dnode/mnode/impl/src/mndQnode.c
View File

@ -354,6 +354,14 @@ static int32_t mndSetDropQnodeRedoActions(STrans *pTrans, SDnodeObj *pDnode, SQn
return 0;
}
int32_t mndSetDropQnodeInfoToTrans(SMnode *pMnode, STrans *pTrans, SQnodeObj *pObj) {
if (pObj == NULL) return 0;
if (mndSetDropQnodeRedoLogs(pTrans, pObj) != 0) return -1;
if (mndSetDropQnodeCommitLogs(pTrans, pObj) != 0) return -1;
if (mndSetDropQnodeRedoActions(pTrans, pObj->pDnode, pObj) != 0) return -1;
return 0;
}
static int32_t mndDropQnode(SMnode *pMnode, SRpcMsg *pReq, SQnodeObj *pObj) {
int32_t code = -1;
@ -361,9 +369,7 @@ static int32_t mndDropQnode(SMnode *pMnode, SRpcMsg *pReq, SQnodeObj *pObj) {
if (pTrans == NULL) goto _OVER;
mDebug("trans:%d, used to drop qnode:%d", pTrans->id, pObj->id);
if (mndSetDropQnodeRedoLogs(pTrans, pObj) != 0) goto _OVER;
if (mndSetDropQnodeCommitLogs(pTrans, pObj) != 0) goto _OVER;
if (mndSetDropQnodeRedoActions(pTrans, pObj->pDnode, pObj) != 0) goto _OVER;
if (mndSetDropQnodeInfoToTrans(pMnode, pTrans, pObj) != 0) goto _OVER;
if (mndTransPrepare(pMnode, pTrans) != 0) goto _OVER;
code = 0;

17
source/dnode/mnode/impl/src/mndSnode.c
View File

@ -65,7 +65,7 @@ SEpSet mndAcquireEpFromSnode(SMnode *pMnode, const SSnodeObj *pSnode) {
return epSet;
}
static SSnodeObj *mndAcquireSnode(SMnode *pMnode, int32_t snodeId) {
SSnodeObj *mndAcquireSnode(SMnode *pMnode, int32_t snodeId) {
SSnodeObj *pObj = sdbAcquire(pMnode->pSdb, SDB_SNODE, &snodeId);
if (pObj == NULL && terrno == TSDB_CODE_SDB_OBJ_NOT_THERE) {
terrno = TSDB_CODE_MND_SNODE_NOT_EXIST;
@ -73,7 +73,7 @@ static SSnodeObj *mndAcquireSnode(SMnode *pMnode, int32_t snodeId) {
return pObj;
}
static void mndReleaseSnode(SMnode *pMnode, SSnodeObj *pObj) {
void mndReleaseSnode(SMnode *pMnode, SSnodeObj *pObj) {
SSdb *pSdb = pMnode->pSdb;
sdbRelease(pSdb, pObj);
}
@ -361,6 +361,14 @@ static int32_t mndSetDropSnodeRedoActions(STrans *pTrans, SDnodeObj *pDnode, SSn
return 0;
}
int32_t mndSetDropSnodeInfoToTrans(SMnode *pMnode, STrans *pTrans, SSnodeObj *pObj) {
if (pObj == NULL) return 0;
if (mndSetDropSnodeRedoLogs(pTrans, pObj) != 0) return -1;
if (mndSetDropSnodeCommitLogs(pTrans, pObj) != 0) return -1;
if (mndSetDropSnodeRedoActions(pTrans, pObj->pDnode, pObj) != 0) return -1;
return 0;
}
static int32_t mndDropSnode(SMnode *pMnode, SRpcMsg *pReq, SSnodeObj *pObj) {
int32_t code = -1;
@ -368,10 +376,7 @@ static int32_t mndDropSnode(SMnode *pMnode, SRpcMsg *pReq, SSnodeObj *pObj) {
if (pTrans == NULL) goto _OVER;
mDebug("trans:%d, used to drop snode:%d", pTrans->id, pObj->id);
if (mndSetDropSnodeRedoLogs(pTrans, pObj) != 0) goto _OVER;
if (mndSetDropSnodeCommitLogs(pTrans, pObj) != 0) goto _OVER;
if (mndSetDropSnodeRedoActions(pTrans, pObj->pDnode, pObj) != 0) goto _OVER;
if (mndSetDropSnodeInfoToTrans(pMnode, pTrans, pObj) != 0) goto _OVER;
if (mndTransPrepare(pMnode, pTrans) != 0) goto _OVER;
code = 0;

4
tests/script/jenkins/basic.txt
View File

@ -23,7 +23,11 @@
# ---- dnode
./test.sh -f tsim/dnode/create_dnode.sim
./test.sh -f tsim/dnode/drop_dnode_has_mnode.sim
./test.sh -f tsim/dnode/drop_dnode_has_qnode_snode.sim
./test.sh -f tsim/dnode/drop_dnode_has_vnode_replica1.sim
#./test.sh -f tsim/dnode/drop_dnode_has_vnode_replica3.sim
#./test.sh -f tsim/dnode/drop_dnode_has_multi_vnode_replica1.sim
#./test.sh -f tsim/dnode/drop_dnode_has_multi_vnode_replica3.sim
# ---- insert
./test.sh -f tsim/insert/basic0.sim

135
tests/script/tsim/dnode/drop_dnode_has_multi_vnode_replica1.sim Normal file
View File

@ -0,0 +1,135 @@
system sh/stop_dnodes.sh
system sh/deploy.sh -n dnode1 -i 1
system sh/deploy.sh -n dnode2 -i 2
system sh/deploy.sh -n dnode3 -i 3
system sh/cfg.sh -n dnode1 -c supportVnodes -v 0
system sh/exec.sh -n dnode1 -s start
system sh/exec.sh -n dnode2 -s start
sql connect
print =============== step1 create dnode2
sql create dnode $hostname port 7200
sql create dnode $hostname port 7300
$x = 0
step1:
$ = $x + 1
sleep 1000
if $x == 10 then
print ====> dnode not online!
return -1
endi
sql show dnodes
print ===> $data00 $data01 $data02 $data03 $data04 $data05
print ===> $data10 $data11 $data12 $data13 $data14 $data15
if $rows != 3 then
return -1
endi
if $data(1)[4] != ready then
goto step1
endi
if $data(2)[4] != ready then
goto step1
endi
if $data(3)[4] != offline then
goto step1
endi
print =============== step2 create database
sql create database d1 vgroups 4
sql use d1
sql create table d1.st (ts timestamp, i int) tags (j int)
sql create table d1.c1 using st tags(1)
sql show d1.tables
if $rows != 1 then
return -1
endi
sql show d1.vgroups
print $data[0][0] $data[0][1] $data[0][2] $data[0][3] $data[0][4]
print $data[0][0] $data[0][1] $data[0][2] $data[0][3] $data[0][4]
print $data[0][0] $data[0][1] $data[0][2] $data[0][3] $data[0][4]
print $data[0][0] $data[0][1] $data[0][2] $data[0][3] $data[0][4]
if $rows != 4 then
return -1
endi
if $data(2)[3] != 2 then
return -1
endi
if $data(3)[3] != 2 then
return -1
endi
if $data(4)[3] != 2 then
return -1
endi
if $data(5)[3] != 2 then
return -1
endi
print =============== step3: start dnode 3
system sh/exec.sh -n dnode3 -s start
$x = 0
step4:
$ = $x + 1
sleep 1000
if $x == 10 then
print ====> dnode not online!
return -1
endi
sql show dnodes
print ===> $data00 $data01 $data02 $data03 $data04 $data05
print ===> $data10 $data11 $data12 $data13 $data14 $data15
if $rows != 3 then
return -1
endi
if $data(1)[4] != ready then
goto step4
endi
if $data(2)[4] != ready then
goto step4
endi
if $data(3)[4] != ready then
goto step4
endi
print =============== step3: drop dnode2
sql drop dnode 2
print show dnodes;
sql show dnodes;
print $data[0][0] $data[0][1] $data[0][2] $data[0][3] $data[0][4]
print $data[1][0] $data[1][1] $data[1][2] $data[1][3] $data[1][4]
if $rows != 2 then
return -1
endi
sql show d1.vgroups
print $data[0][0] $data[0][1] $data[0][2] $data[0][3] $data[0][4]
print $data[0][0] $data[0][1] $data[0][2] $data[0][3] $data[0][4]
print $data[0][0] $data[0][1] $data[0][2] $data[0][3] $data[0][4]
print $data[0][0] $data[0][1] $data[0][2] $data[0][3] $data[0][4]
if $rows != 4 then
return -1
endi
if $data(2)[3] != 3 then
return -1
endi
if $data(3)[3] != 3 then
return -1
endi
if $data(4)[3] != 3 then
return -1
endi
if $data(5)[3] != 3 then
return -1
endi
print =============== step4: select data
sql show d1.tables
if $rows != 1 then
return -1
endi
system sh/exec.sh -n dnode1 -s stop -x SIGINT
system sh/exec.sh -n dnode2 -s stop -x SIGINT
system sh/exec.sh -n dnode3 -s stop -x SIGINT

135
tests/script/tsim/dnode/drop_dnode_has_multi_vnode_replica3.sim Normal file
View File

@ -0,0 +1,135 @@
system sh/stop_dnodes.sh
system sh/deploy.sh -n dnode1 -i 1
system sh/deploy.sh -n dnode2 -i 2
system sh/deploy.sh -n dnode3 -i 3
system sh/deploy.sh -n dnode4 -i 4
system sh/deploy.sh -n dnode5 -i 5
system sh/cfg.sh -n dnode1 -c supportVnodes -v 0
system sh/exec.sh -n dnode1 -s start
system sh/exec.sh -n dnode2 -s start
system sh/exec.sh -n dnode3 -s start
system sh/exec.sh -n dnode4 -s start
sql connect
print =============== step1 create dnode2 dnode3 dnode4 dnode 5
sql create dnode $hostname port 7200
sql create dnode $hostname port 7300
sql create dnode $hostname port 7400
sql create dnode $hostname port 7500
$x = 0
step1:
$ = $x + 1
sleep 1000
if $x == 10 then
print ====> dnode not online!
return -1
endi
sql show dnodes
print ===> $data00 $data01 $data02 $data03 $data04 $data05
print ===> $data10 $data11 $data12 $data13 $data14 $data15
if $rows != 3 then
return -1
endi
if $data(1)[4] != ready then
goto step1
endi
if $data(2)[4] != ready then
goto step1
endi
if $data(3)[4] != ready then
goto step1
endi
if $data(4)[4] != ready then
goto step1
endi
if $data(5)[4] != offline then
goto step1
endi
print =============== step3 create database
sql create database d1 vgroups 4 replica 3
sql use d1
sql create table d1.st (ts timestamp, i int) tags (j int)
sql create table d1.c1 using st tags(1)
sql show d1.tables
if $rows != 1 then
return -1
endi
sql show d1.vgroups
print $data[0][0] $data[0][1] $data[0][2] $data[0][3] $data[0][4]
if $rows != 1 then
return -1
endi
if $data(2)[3] != 2 then
return -1
endi
if $data(2)[5] != 3 then
return -1
endi
if $data(2)[7] != 4 then
return -1
endi
print =============== step4: drop dnode 2
system sh/exec.sh -n dnode5 -s start
$x = 0
step4:
$ = $x + 1
sleep 1000
if $x == 10 then
print ====> dnode not online!
return -1
endi
sql show dnodes
print ===> $data00 $data01 $data02 $data03 $data04 $data05
print ===> $data10 $data11 $data12 $data13 $data14 $data15
if $rows != 3 then
return -1
endi
if $data(1)[4] != ready then
goto step4
endi
if $data(2)[4] != ready then
goto step4
endi
if $data(3)[4] != ready then
goto step4
endi
if $data(4)[4] != ready then
goto step4
endi
if $data(5)[4] != ready then
goto step4
endi
print =============== step5: drop dnode2
sql drop dnode 2
print show dnodes;
sql show dnodes;
print $data[0][0] $data[0][1] $data[0][2] $data[0][3] $data[0][4]
print $data[1][0] $data[1][1] $data[1][2] $data[1][3] $data[1][4]
if $rows != 4 then
return -1
endi
print show d1.vgroups
sql show d1.vgroups
print $data[0][0] $data[0][1] $data[0][2] $data[0][3] $data[0][4]
if $rows != 1 then
return -1
endi
print =============== step6: select data
sql show d1.tables
if $rows != 1 then
return -1
endi
return
system sh/exec.sh -n dnode1 -s stop -x SIGINT
system sh/exec.sh -n dnode2 -s stop -x SIGINT
system sh/exec.sh -n dnode3 -s stop -x SIGINT

71
tests/script/tsim/dnode/drop_dnode_has_qsnode.sim Normal file
View File

@ -0,0 +1,71 @@
system sh/stop_dnodes.sh
system sh/deploy.sh -n dnode1 -i 1
system sh/deploy.sh -n dnode2 -i 2
system sh/exec.sh -n dnode1 -s start
system sh/exec.sh -n dnode2 -s start
sql connect
print =============== step1 create dnode2
sql create dnode $hostname port 7200
$x = 0
step1:
$ = $x + 1
sleep 1000
if $x == 10 then
print ====> dnode not online!
return -1
endi
sql show dnodes
print ===> $data00 $data01 $data02 $data03 $data04 $data05
print ===> $data10 $data11 $data12 $data13 $data14 $data15
if $rows != 2 then
return -1
endi
if $data(1)[4] != ready then
goto step1
endi
if $data(2)[4] != ready then
goto step1
endi
print =============== step2: create qnode snode on dnode 2
sql create qnode on dnode 2
sql create snode on dnode 2
sql show qnodes
if $rows != 1 then
return -1
endi
sql show snodes
if $rows != 1 then
return -1
endi
print =============== step3: drop dnode 2
sql drop dnode 2
print show dnodes;
sql show dnodes;
print $data[0][0] $data[0][1] $data[0][2] $data[0][3] $data[0][4]
print $data[1][0] $data[1][1] $data[1][2] $data[1][3] $data[1][4]
if $rows != 1 then
return -1
endi
if $data00 != 1 then
return -1
endi
sql show qnodes
if $rows != 0 then
return -1
endi
sql show snodes
if $rows != 0 then
return -1
endi
system sh/exec.sh -n dnode1 -s stop -x SIGINT
system sh/exec.sh -n dnode2 -s stop -x SIGINT

2
tests/script/tsim/dnode/drop_dnode_has_vnode_replica1.sim
View File

@ -148,4 +148,4 @@ endi
return
system sh/exec.sh -n dnode1 -s stop -x SIGINT
system sh/exec.sh -n dnode2 -s stop -x SIGINT
system sh/exec.sh -n dnode2 -s stop -x SIGINT
system sh/exec.sh -n dnode3 -s stop -x SIGINT

137
tests/script/tsim/dnode/drop_dnode_has_vnode_replica3.sim Normal file
View File

@ -0,0 +1,137 @@
system sh/stop_dnodes.sh
system sh/deploy.sh -n dnode1 -i 1
system sh/deploy.sh -n dnode2 -i 2
system sh/deploy.sh -n dnode3 -i 3
system sh/deploy.sh -n dnode4 -i 4
system sh/deploy.sh -n dnode5 -i 5
system sh/cfg.sh -n dnode1 -c supportVnodes -v 0
system sh/exec.sh -n dnode1 -s start
system sh/exec.sh -n dnode2 -s start
system sh/exec.sh -n dnode3 -s start
system sh/exec.sh -n dnode4 -s start
sql connect
print =============== step1 create dnode2 dnode3 dnode4 dnode 5
sql create dnode $hostname port 7200
sql create dnode $hostname port 7300
sql create dnode $hostname port 7400
sql create dnode $hostname port 7500
$x = 0
step1:
$ = $x + 1
sleep 1000
if $x == 10 then
print ====> dnode not online!
return -1
endi
sql show dnodes
print ===> $data00 $data01 $data02 $data03 $data04 $data05
print ===> $data10 $data11 $data12 $data13 $data14 $data15
if $rows != 3 then
return -1
endi
if $data(1)[4] != ready then
goto step1
endi
if $data(2)[4] != ready then
goto step1
endi
if $data(3)[4] != ready then
goto step1
endi
if $data(4)[4] != ready then
goto step1
endi
if $data(5)[4] != offline then
goto step1
endi
print =============== step3 create database
sql create database d1 vgroups 1 replica 3
sql use d1
sql create table d1.st (ts timestamp, i int) tags (j int)
sql create table d1.c1 using st tags(1)
sql show d1.tables
if $rows != 1 then
return -1
endi
sql show d1.vgroups
print $data[0][0] $data[0][1] $data[0][2] $data[0][3] $data[0][4]
if $rows != 1 then
return -1
endi
if $data(2)[3] != 2 then
return -1
endi
if $data(2)[5] != 3 then
return -1
endi
if $data(2)[7] != 4 then
return -1
endi
print =============== step4: drop dnode 2
system sh/exec.sh -n dnode5 -s start
$x = 0
step4:
$ = $x + 1
sleep 1000
if $x == 10 then
print ====> dnode not online!
return -1
endi
sql show dnodes
print ===> $data00 $data01 $data02 $data03 $data04 $data05
print ===> $data10 $data11 $data12 $data13 $data14 $data15
if $rows != 3 then
return -1
endi
if $data(1)[4] != ready then
goto step4
endi
if $data(2)[4] != ready then
goto step4
endi
if $data(3)[4] != ready then
goto step4
endi
if $data(4)[4] != ready then
goto step4
endi
if $data(5)[4] != ready then
goto step4
endi
print =============== step5: drop dnode2
sql drop dnode 2
print show dnodes;
sql show dnodes;
print $data[0][0] $data[0][1] $data[0][2] $data[0][3] $data[0][4]
print $data[1][0] $data[1][1] $data[1][2] $data[1][3] $data[1][4]
if $rows != 4 then
return -1
endi
print show d1.vgroups
sql show d1.vgroups
print $data[0][0] $data[0][1] $data[0][2] $data[0][3] $data[0][4]
if $rows != 1 then
return -1
endi
#if $data(2)[3] != 3 then
# return -1
#endi
print =============== step6: select data
sql show d1.tables
if $rows != 1 then
return -1
endi
return
system sh/exec.sh -n dnode1 -s stop -x SIGINT
system sh/exec.sh -n dnode2 -s stop -x SIGINT
system sh/exec.sh -n dnode3 -s stop -x SIGINT