liangyuanpeng opened a new issue #2462:
URL: https://github.com/apache/bookkeeper/issues/2462
**QUESTION**
All of my bookie just print this log, and i am not idea for it .
I had reboot machine and not working.
```
bk2_1 | 2020-10-28 02:43:08,873 - INFO -
[SyncThread-7-1:IndexInMemPageMgr@507] - Could not grab a clean page for ledger
416031, entry 0, force flushing dirty ledgers.
bk2_1 | 2020-10-28 02:43:08,898 - INFO -
[SyncThread-7-1:IndexInMemPageMgr@507] - Could not grab a clean page for ledger
416034, entry 0, force flushing dirty ledgers.
bk2_1 | 2020-10-28 02:43:08,922 - INFO -
[SyncThread-7-1:IndexInMemPageMgr@507] - Could not grab a clean page for ledger
416037, entry 0, force flushing dirty ledgers.
bk2_1 | 2020-10-28 02:43:08,942 - INFO -
[SyncThread-7-1:IndexInMemPageMgr@507] - Could not grab a clean page for ledger
416040, entry 0, force flushing dirty ledgers.
bk2_1 | 2020-10-28 02:43:08,963 - INFO -
[SyncThread-7-1:IndexInMemPageMgr@507] - Could not grab a clean page for ledger
416043, entry 0, force flushing dirty ledgers.
bk2_1 | 2020-10-28 02:43:08,983 - INFO -
[SyncThread-7-1:IndexInMemPageMgr@507] - Could not grab a clean page for ledger
416046, entry 0, force flushing dirty ledgers.
bk2_1 | 2020-10-28 02:43:09,001 - INFO -
[SyncThread-7-1:IndexInMemPageMgr@507] - Could not grab a clean page for ledger
416049, entry 0, force flushing dirty ledgers.
bk2_1 | 2020-10-28 02:43:09,017 - INFO -
[SyncThread-7-1:IndexInMemPageMgr@507] - Could not grab a clean page for ledger
416052, entry 0, force flushing dirty ledgers.
bk2_1 | 2020-10-28 02:43:09,034 - INFO -
[SyncThread-7-1:IndexInMemPageMgr@507] - Could not grab a clean page for ledger
416055, entry 0, force flushing dirty ledgers.
bk2_1 | 2020-10-28 02:43:09,053 - INFO -
[SyncThread-7-1:IndexInMemPageMgr@507] - Could not grab a clean page for ledger
416058, entry 0, force flushing dirty ledgers.
bk2_1 | 2020-10-28 02:43:09,085 - INFO -
[SyncThread-7-1:IndexInMemPageMgr@507] - Could not grab a clean page for ledger
416061, entry 0, force flushing dirty ledgers.
```
# Reproduce
I''m not sure how can reproduce to it, and i don't why just happend.
# Other
Bookie Number : 3
bookkeeper version: apache/bookkeeper:4.10.0
All Mem: 16G
docker-compose file:
```
version: "3.7"
services:
zk:
image: zookeeper:3.4.13 #zookeeper:3.6.1
ports:
- 2281:2181
volumes:
- ./data/zkdata:/data
bk:
image: apache/bookkeeper:4.10.0
ports:
- 3281:3281
- 38081:8080
volumes:
- ./data/bkdata:/data
environment:
- BK_zkServers=192.168.3.75:2281
- BK_httpServerPort=8080
- BK_bookiePort=3281
- BK_advertisedAddress=192.168.3.75
depends_on:
- zk
bk2:
image: apache/bookkeeper:4.10.0
ports:
- 3282:3282
volumes:
- ./data/bkdata2:/data
environment:
- BK_zkServers=192.168.3.75:2281
- BK_httpServerPort=8080
- BK_bookiePort=3282
- BK_advertisedAddress=192.168.3.75
depends_on:
- zk
bk3:
image: apache/bookkeeper:4.10.0
ports:
- 3283:3283
volumes:
- ./data/bkdata3:/data
environment:
- BK_zkServers=192.168.3.75:2281
- BK_httpServerPort=8080
- BK_bookiePort=3283
- BK_advertisedAddress=192.168.3.75
depends_on:
- zk
```
Thanks any help!
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