nexus3 磁盘空间满后 docker 启动报”cannot open local storage ‘/nexus-data/db/config’ with mode=rw”
错误信息
java.lang.NullPointerException: null
at com.orientechnologies.orient.core.storage.impl.local.paginated.wal.ODiskWriteAheadLog.cutTill(ODiskWriteAheadLog.java:919)
at com.orientechnologies.orient.core.storage.impl.local.OAbstractPaginatedStorage.makeFullCheckpoint(OAbstractPaginatedStorage.java:3706)
at com.orientechnologies.orient.core.storage.impl.local.OAbstractPaginatedStorage.doClose(OAbstractPaginatedStorage.java:4413)
at com.orientechnologies.orient.core.storage.impl.local.OAbstractPaginatedStorage.close(OAbstractPaginatedStorage.java:581)
at com.orientechnologies.orient.core.storage.impl.local.OAbstractPaginatedStorage.open(OAbstractPaginatedStorage.java:316)
at com.orientechnologies.orient.core.db.document.ODatabaseDocumentTx.open(ODatabaseDocumentTx.java:259)
at org.sonatype.nexus.orient.DatabaseManagerSupport.connect(DatabaseManagerSupport.java:178)
at org.sonatype.nexus.orient.DatabaseManagerSupport.createInstance(DatabaseManagerSupport.java:312)
at java.util.concurrent.ConcurrentHashMap.computeIfAbsent(ConcurrentHashMap.java:1660)
at org.sonatype.nexus.orient.DatabaseManagerSupport.instance(DatabaseManagerSupport.java:289)
at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183)
at java.util.Spliterators$ArraySpliterator.forEachRemaining(Spliterators.java:948)
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:482)
at java.util.stream.ForEachOps$ForEachTask.compute(ForEachOps.java:290)
at java.util.concurrent.CountedCompleter.exec(CountedCompleter.java:731)
at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)
at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692)
at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)
2020-11-19 01:57:31,172+0000 ERROR [ForkJoinPool.commonPool-worker-1] *SYSTEM com.orientechnologies.orient.core.storage.impl.local.paginated.OLocalPaginatedStorage - Exception `47820D6D` in storage `plocal:/nexus-data/db/config`: 2.2.36 (build d3beb772c02098ceaea89779a7afd4b7305d3788, branch 2.2.x)
com.orientechnologies.orient.core.exception.OStorageException: Cannot open local storage '/nexus-data/db/config' with mode=rw^M
DB name="config"
at com.orientechnologies.orient.core.storage.impl.local.OAbstractPaginatedStorage.open(OAbstractPaginatedStorage.java:323)
at com.orientechnologies.orient.core.db.document.ODatabaseDocumentTx.open(ODatabaseDocumentTx.java:259)
at org.sonatype.nexus.orient.DatabaseManagerSupport.connect(DatabaseManagerSupport.java:178)
at org.sonatype.nexus.orient.DatabaseManagerSupport.createInstance(DatabaseManagerSupport.java:312)
at java.util.concurrent.ConcurrentHashMap.computeIfAbsent(ConcurrentHashMap.java:1660)
at org.sonatype.nexus.orient.DatabaseManagerSupport.instance(DatabaseManagerSupport.java:289)
at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183)
at java.util.Spliterators$ArraySpliterator.forEachRemaining(Spliterators.java:948)
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:482)
at java.util.stream.ForEachOps$ForEachTask.compute(ForEachOps.java:290)
at java.util.concurrent.CountedCompleter.exec(CountedCompleter.java:731)
at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)
at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692)
at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)
Caused by: java.lang.NullPointerException: null
at com.orientechnologies.orient.core.storage.impl.local.paginated.wal.ODiskWriteAheadLog.cutTill(ODiskWriteAheadLog.java:919)
at com.orientechnologies.orient.core.storage.impl.local.OAbstractPaginatedStorage.makeFullCheckpoint(OAbstractPaginatedStorage.java:3706)
at com.orientechnologies.orient.core.storage.impl.local.OAbstractPaginatedStorage.recoverIfNeeded(OAbstractPaginatedStorage.java:3937)
at com.orientechnologies.orient.core.storage.impl.local.OAbstractPaginatedStorage.open(OAbstractPaginatedStorage.java:288)
... 14 common frames omitted
清除以前的文件
``` visual basic 进入到宿主机存放nexus数据文件目录，比如我自己机器上的/data/tools/nexus/nexus-data/
cd /data/tools/nexus/nexus-data/db/config
rm -rf *.wal
cd /data/tools/nexus/nexus-data/db/component
rm -rf *.wal ```
执行修复工具
``` visual basic 到nexus的docker安装目录去找修复工具，如果不知道就搜索，步骤如下： 以root用户登录 cd /
find . -name nexus-orient-console.jar
cd {上一步中找到的文件路径}
java -jar nexus-orient-console.jar
connect plocal:${nexus-db-oath}/db/component admin admin #在我这里就是/data/tools/nexus/nexus-data/db/componnet
rebuild index *
repair database –fix-links
disconnect
exit
## 授权
``` visual basic
cd ${nexus-db-oath}/db #在我这里就是/data/tools/nexus/nexus-data/nexus/db
chmod 777 -R /data/tools/nexus/nexus-data/nexus/db
重新启动nexus
docker ps -a
docker start container_id && docker logs -f container_id
预防内存过大
Nexus后台的管理配置页面添加定时器，定时对数据磁盘进行整理
任务类型
任务1-Maven-Delete SNAPSHOT
这个任务会进行逻辑删除，就是类似于将此记录在数据库中删除，而真正的文件存储在磁盘没有被删除。
任务2-Delete unused manifests and images
清理docker images定时任务
任务3-Admin - Compact blob store
优化存储空间 将没有被用的数据进行优化，由于第一个任务将数据的记录删除，导致文件可以被进行优化。
