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Posted to notifications@skywalking.apache.org by GitBox <gi...@apache.org> on 2019/01/22 07:11:25 UTC
[GitHub] xuet0ng commented on issue #2190: [Agent] can not connect to the
collector maybe cause memory leak
xuet0ng commented on issue #2190: [Agent] can not connect to the collector maybe cause memory leak
URL: https://github.com/apache/incubator-skywalking/issues/2190#issuecomment-456293895
- original jar
- start & connect collector success
```
➜ skywalking-agent jmap -histo:live 21310 | grep ManagedChannelImpl
1252: 1 216 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl
2978: 1 40 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$SubchannelImpl
3361: 1 32 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$1
3362: 1 32 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$UncommittedRetriableStreamsRegistry
4125: 1 24 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$3
4126: 1 24 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$6
4127: 1 24 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$LbHelperImpl
4128: 1 24 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$LbHelperImpl$1
4129: 1 24 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$NameResolverListenerImpl
5484: 1 16 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$1AutoDrainChannelExecutor
5485: 1 16 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$2
5486: 1 16 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$5
5487: 1 16 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$IdleModeTimer
5488: 1 16 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$RealChannel
➜ skywalking-agent
➜ skywalking-agent
➜ skywalking-agent
➜ skywalking-agent jmap -histo:live 21310 | grep ManagedChannelImpl
1246: 1 216 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl
2985: 1 40 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$SubchannelImpl
3372: 1 32 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$1
3373: 1 32 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$UncommittedRetriableStreamsRegistry
4130: 1 24 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$3
4131: 1 24 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$6
4132: 1 24 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$LbHelperImpl
4133: 1 24 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$LbHelperImpl$1
4134: 1 24 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$NameResolverListenerImpl
5485: 1 16 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$1AutoDrainChannelExecutor
5486: 1 16 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$2
5487: 1 16 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$5
5488: 1 16 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$IdleModeTimer
5489: 1 16 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$RealChannel
```
- disconnect network & wait for a few min
```
➜ skywalking-agent jmap -histo:live 21310 | grep ManagedChannelImpl
1246: 1 216 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl
2992: 1 40 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$SubchannelImpl
3387: 1 32 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$1
3388: 1 32 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$UncommittedRetriableStreamsRegistry
4152: 1 24 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$3
4153: 1 24 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$6
4154: 1 24 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$LbHelperImpl
4155: 1 24 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$LbHelperImpl$1
4156: 1 24 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$NameResolverListenerImpl
5511: 1 16 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$1AutoDrainChannelExecutor
5512: 1 16 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$2
5513: 1 16 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$5
5514: 1 16 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$IdleModeTimer
5515: 1 16 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$RealChannel
➜ skywalking-agent jmap -histo:live 21310 | grep ManagedChannelImpl
882: 2 432 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl
2017: 2 80 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$SubchannelImpl
2352: 2 64 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$1
2353: 2 64 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$UncommittedRetriableStreamsRegistry
2691: 2 48 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$3
2692: 2 48 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$6
2693: 2 48 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$LbHelperImpl
2694: 2 48 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$LbHelperImpl$1
2695: 2 48 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$NameResolverListenerImpl
3407: 2 32 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$1AutoDrainChannelExecutor
3408: 2 32 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$2
3409: 2 32 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$5
3410: 2 32 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$IdleModeTimer
3411: 2 32 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$RealChannel
➜ skywalking-agent
➜ skywalking-agent
➜ skywalking-agent jmap -histo:live 21310 | grep ManagedChannelImpl
732: 3 648 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl
1676: 3 120 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$SubchannelImpl
1876: 3 96 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$1
1877: 3 96 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$UncommittedRetriableStreamsRegistry
2159: 3 72 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$3
2160: 3 72 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$6
2161: 3 72 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$LbHelperImpl
2162: 3 72 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$LbHelperImpl$1
2163: 3 72 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$NameResolverListenerImpl
2714: 3 48 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$1AutoDrainChannelExecutor
2715: 3 48 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$2
2716: 3 48 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$5
2717: 3 48 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$IdleModeTimer
2718: 3 48 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$RealChannel
➜ skywalking-agent jmap -histo:live 21310 | grep ManagedChannelImpl
663: 4 864 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl
1437: 4 160 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$SubchannelImpl
1578: 4 128 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$1
1579: 4 128 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$UncommittedRetriableStreamsRegistry
1910: 4 96 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$3
1911: 4 96 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$6
1912: 4 96 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$LbHelperImpl
1913: 4 96 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$LbHelperImpl$1
1914: 4 96 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$NameResolverListenerImpl
2408: 4 64 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$1AutoDrainChannelExecutor
2409: 4 64 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$2
2410: 4 64 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$5
2411: 4 64 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$IdleModeTimer
2412: 4 64 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$RealChannel
➜ skywalking-agent jmap -histo:live 21310 | grep ManagedChannelImpl
601: 5 1080 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl
1290: 5 200 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$SubchannelImpl
1458: 5 160 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$1
1459: 5 160 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$UncommittedRetriableStreamsRegistry
1727: 5 120 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$3
1728: 5 120 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$6
1729: 5 120 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$LbHelperImpl
1730: 5 120 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$LbHelperImpl$1
1731: 5 120 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$NameResolverListenerImpl
2090: 5 80 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$1AutoDrainChannelExecutor
2091: 5 80 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$2
2092: 5 80 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$5
2093: 5 80 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$IdleModeTimer
2094: 5 80 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$RealChannel
➜ skywalking-agent jmap -histo:live 21310 | grep ManagedChannelImpl
559: 6 1296 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl
1186: 6 240 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$SubchannelImpl
1343: 6 192 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$1
1344: 6 192 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$UncommittedRetriableStreamsRegistry
1554: 6 144 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$3
1555: 6 144 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$6
1556: 6 144 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$LbHelperImpl
1557: 6 144 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$LbHelperImpl$1
1558: 6 144 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$NameResolverListenerImpl
1942: 6 96 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$1AutoDrainChannelExecutor
1943: 6 96 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$2
1944: 6 96 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$5
1945: 6 96 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$IdleModeTimer
1946: 6 96 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$RealChannel
➜ skywalking-agent jmap -histo:live 21310 | grep ManagedChannelImpl
524: 7 1512 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl
1098: 7 280 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$SubchannelImpl
1267: 7 224 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$1
1268: 7 224 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$UncommittedRetriableStreamsRegistry
1441: 7 168 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$3
1442: 7 168 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$6
1443: 7 168 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$LbHelperImpl
1444: 7 168 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$LbHelperImpl$1
1445: 7 168 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$NameResolverListenerImpl
1820: 7 112 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$1AutoDrainChannelExecutor
1821: 7 112 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$2
1822: 7 112 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$5
1823: 7 112 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$IdleModeTimer
1824: 7 112 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$RealChannel
```
- modified code **if reconnect & old channel shutdownNow**
- start & connect collector success
```
➜ skywalking-agent jmap -histo:live 20262 | grep ManagedChannelImpl
1241: 1 216 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl
2978: 1 40 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$SubchannelImpl
3365: 1 32 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$1
3366: 1 32 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$UncommittedRetriableStreamsRegistry
4126: 1 24 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$3
```
- disconnect network & wait for a few min
```
➜ skywalking-agent jmap -histo:live 20956 | grep ManagedChannelImpl
732: 3 648 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl
1675: 3 120 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$SubchannelImpl
1874: 3 96 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$1
1875: 3 96 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$UncommittedRetriableStreamsRegistry
2150: 3 72 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$3
2151: 3 72 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$6
2152: 3 72 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$LbHelperImpl
2153: 3 72 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$LbHelperImpl$1
2154: 3 72 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$NameResolverListenerImpl
2708: 3 48 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$1AutoDrainChannelExecutor
2709: 3 48 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$2
2710: 3 48 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$5
2711: 3 48 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$IdleModeTimer
2712: 3 48 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$RealChannel
➜ skywalking-agent jmap -histo:live 20956 | grep ManagedChannelImpl
878: 2 432 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl
1999: 2 80 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$SubchannelImpl
2338: 2 64 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$1
2339: 2 64 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$UncommittedRetriableStreamsRegistry
2681: 2 48 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$3
2682: 2 48 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$6
2683: 2 48 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$LbHelperImpl
2684: 2 48 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$LbHelperImpl$1
2685: 2 48 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$NameResolverListenerImpl
3399: 2 32 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$1AutoDrainChannelExecutor
3400: 2 32 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$2
3401: 2 32 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$5
3402: 2 32 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$IdleModeTimer
3403: 2 32 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$RealChannel
➜ skywalking-agent jmap -histo:live 20956 | grep ManagedChannelImpl
732: 3 648 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl
1675: 3 120 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$SubchannelImpl
1874: 3 96 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$1
1875: 3 96 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$UncommittedRetriableStreamsRegistry
2150: 3 72 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$3
2151: 3 72 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$6
2152: 3 72 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$LbHelperImpl
2153: 3 72 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$LbHelperImpl$1
2154: 3 72 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$NameResolverListenerImpl
2706: 3 48 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$1AutoDrainChannelExecutor
2707: 3 48 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$2
2708: 3 48 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$5
2709: 3 48 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$IdleModeTimer
2710: 3 48 org.apache.skywalking.apm.dependencies.io.grpc.internal.ManagedChannelImpl$RealChannel
```
- 中文了...这是本地电脑上的验证结果..
1. 不修改...一直能链接上collector..链接3分钟...ManagedChannelImpl的对象数一直是1
2. 不修改...先链接collector..再断网..断网3分钟...ManagedChannelImpl的对象数7...中途几次查看对象数目一直在飙升
3. 修改...先链接collector..再断网..断网3分钟...ManagedChannelImpl的对象数3...中途几次查看对象数目1,2,3,2,3...有shutdown关闭释放的迹象，但可能存在不shutdown慢或者shutdown失败（猜测）...
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