# 서비스 체인 child\_bridge\_account / parent\_bridge\_account 복구 방법 문의

**URL:** <https://devforum.kaia.io/t/child-bridge-account-parent-bridge-account/4171>\
**Category:** Kaia\
**Created:** [3월 2, 2022, 9:30오전 UTC](https://devforum.kaia.io/t/child-bridge-account-parent-bridge-account/4171 "2022-03-02T09:30:17Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![d.l2](https://avatars.discourse-cdn.com/v4/letter/d/e0b2c6/32.png) [@d.l2](https://devforum.kaia.io/u/d.l2)\
**Post date:** [3월 2, 2022, 9:30오전 UTC](https://devforum.kaia.io/t/child-bridge-account-parent-bridge-account/4171/1 "2022-03-02T09:30:17Z")

</div>

안녕하세요.

서비스 체인 구성 후, baobab 과 bridge 연결하여 value transfer 테스트하고 있습니다.

트랜잭션 테스트와 함께,  
bridge 로 구성한 SCN1 서버가 장애상황일 때를 대비하여,  
SCN1 에 있는 child\_bridge\_account / parent\_bridge\_account 를 SCN2 로 복사하여  
복구하는 테스트도 병행중인데,  
SCN2 로 복사하여 복구시 child\_bridge\_account / parent\_bridge\_account unlock 프로세싱에서 에러가 발생하고 있습니다. 확인 부탁드려도 될까요?  
(참고로, keystore 파일과 password 파일은 정상임을 확인하였습니다.)

=== SCN1 : 정상적으로 unlock ===

```auto
INFO[03/02,14:51:57 +09] [45] bridge account is loaded parent=0x5936BD394be4754e...c1DB1E3A4813E child=0x958D9B607f8...88d9E26b2f

```

=== SCN2 : unlock 에러 ===

```auto
INFO[03/02,17:00:36 +09] [45] Initialising Klaytn-Bridge protocol network=1
INFO[03/02,17:00:36 +09] [45] Loaded local transaction journal transactions=0 dropped=0
INFO[03/02,17:00:36 +09] [45] Regenerated local transaction journal transactions=0 accounts=0
DEBUG[03/02,17:00:36 +09] [2] FS scan times list=25.143µs set=3.921µs diff=6.109µs
DEBUG[03/02,17:00:36 +09] [2] Failed to decode keystore key path=/var/kscnd/data/parent_bridge_account/0x5936BD394be4754e465d3e68E49c1DB1E3A4813E err="invalid character 'V' looking for beginning of value"
TRACE[03/02,17:00:36 +09] [2] Handled keystore changes time=66.724µs
TRACE[03/02,17:00:36 +09] [2] Started watching keystore folder path=/var/kscnd/data/parent_bridge_account
WARN[03/02,17:00:37 +09] [45] bridge account wallet unlock is failed by exist password file. address=0x5936BD394be4754e465d3e68E49c1DB1E3A4813E err="could not decrypt key with given passphrase"
WARN[03/02,17:00:37 +09] [45] parent_bridge_account is locked. Please unlock the account manually for Service Chain
TRACE[03/02,17:00:37 +09] [2] Started watching keystore folder path=/var/kscnd/data/child_bridge_account
DEBUG[03/02,17:00:37 +09] [2] FS scan times list=54.498µs set=5.739µs diff=5.677µs
DEBUG[03/02,17:00:37 +09] [2] Failed to decode keystore key path=/var/kscnd/data/child_bridge_account/0x958D9B607f82Ff60A6578219579a5A88d9E26b2f err="json: cannot unmarshal number into Go value of type struct { Address string \"json:\\\"address\\\"\" }"
TRACE[03/02,17:00:37 +09] [2] Handled keystore changes time=113.999µs
WARN[03/02,17:00:37 +09] [45] bridge account wallet unlock is failed by exist password file. address=0x958D9B607f82Ff60A6578219579a5A88d9E26b2f err="could not decrypt key with given passphrase"
WARN[03/02,17:00:37 +09] [45] child_bridge_account is locked. Please unlock the account manually for Service Chain
INFO[03/02,17:00:37 +09] [45] bridge account is loaded parent=0x5936BD394be4754e465d3e68E49c1DB1E3A4813E child=0x958D9B607f82Ff60A6578219579a5A88d9E26b2f
INFO[03/02,17:00:37 +09] [45] Load Bridge Address from JournalFiles path=/var/kscnd/data/bridge_addrs.rlp
INFO[03/02,17:00:37 +09] [45] Loaded local bridge journal addrs=0 dropped=0
INFO[03/02,17:00:37 +09] [45] Regenerated local addr journal addrs=0 accounts=0
INFO[03/02,17:00:37 +09] [40] Starting P2P networking

```

---

<div class="post-metadata">

**Author:** ![d.l2](https://avatars.discourse-cdn.com/v4/letter/d/e0b2c6/32.png) [@d.l2](https://devforum.kaia.io/u/d.l2)\
**Post date:** [3월 3, 2022, 12:43오후 UTC](https://devforum.kaia.io/t/child-bridge-account-parent-bridge-account/4171/2 "2022-03-03T12:43:50Z")

</div>

다른 노드에서 동일한 테스트하니 정상적으로 동작하네요. ㅠ.ㅠ  
unlock 프로세스에서 발생하는 에러만 시간나실 때 확인해주시면 좋겠습니다.  
(위 에러와 상관없이 정상적으로 unlock 되어 프로세싱 됨)