我在使用nexus连接远程库爆read time out

我在使用nexus连接远程库爆read time out

2014-05-13 16:11:12,816+0800 INFO  [proxy-3-thread-1] admin org.sonatype.nexus.proxy.storage.remote.httpclient.HttpClientRemoteStorage - Initializing remote transport for proxy repository "Central" [id=central]...
2014-05-13 16:11:12,816+0800 INFO  [proxy-3-thread-5] admin org.sonatype.nexus.proxy.storage.remote.httpclient.HttpClientRemoteStorage - Initializing remote transport for proxy repository "OSChina Repository" [id=OSChina]...
2014-05-13 16:11:12,817+0800 INFO  [proxy-3-thread-2] admin org.sonatype.nexus.proxy.storage.remote.httpclient.HttpClientRemoteStorage - Initializing remote transport for proxy repository "Codehaus Snapshots" [id=codehaus-snapshots]...
2014-05-13 16:11:12,816+0800 INFO  [proxy-3-thread-3] admin org.sonatype.nexus.proxy.storage.remote.httpclient.HttpClientRemoteStorage - Initializing remote transport for proxy repository "Sonatype Repository" [id=sonatype]...
2014-05-13 16:11:12,818+0800 INFO  [proxy-3-thread-4] admin org.sonatype.nexus.proxy.storage.remote.httpclient.HttpClientRemoteStorage - Initializing remote transport for proxy repository "Apache Snapshots" [id=apache-snapshots]...
2014-05-13 16:11:25,265+0800 INFO  [proxy-3-thread-5] admin org.apache.http.impl.execchain.RetryExec - I/O exception (java.net.SocketException) caught when processing request to {}->http://maven.oschina.net:80: Connection reset
2014-05-13 16:11:25,265+0800 INFO  [proxy-3-thread-5] admin org.apache.http.impl.execchain.RetryExec - Retrying request to {}->http://maven.oschina.net:80
2014-05-13 16:11:42,288+0800 WARN  [ar-4-thread-2] *SYSTEM org.sonatype.nexus.proxy.maven.routing.internal.RemoteContentDiscovererImpl - Remote strategy prefix-file error on M2Repository(id=sonatype): java.net.SocketTimeoutException: Read timed out
2014-05-13 16:11:56,525+0800 INFO  [pxpool-1-thread-1] admin org.sonatype.nexus.index.tasks.UpdateIndexTask - Scheduled task (UpdateIndexTask) started :: Updating repository index "OSChina Repository" from path / and below.
2014-05-13 16:11:56,829+0800 INFO  [pxpool-1-thread-1] admin org.sonatype.nexus.index.DefaultIndexerManager - Trying to get remote index for repository "OSChina Repository" [id=OSChina]
2014-05-13 16:11:58,615+0800 INFO  [pxpool-1-thread-1] admin org.sonatype.nexus.index.DefaultIndexerManager - Cannot incrementally update index for repository OSChina
2014-05-13 16:11:58,615+0800 INFO  [pxpool-1-thread-1] admin org.sonatype.nexus.index.DefaultIndexerManager - Unable to incrementally update index for repository OSChina. Trying full index update
2014-05-13 16:11:59,262+0800 INFO  [pxpool-1-thread-1] admin org.sonatype.nexus.index.DefaultIndexerManager - Trying to get remote index for repository "OSChina Repository" [id=OSChina]
2014-05-13 16:13:02,021+0800 WARN  [pxpool-1-thread-1] admin org.sonatype.nexus.index.DefaultIndexerManager - Cannot fetch remote index for repository "OSChina Repository" [id=OSChina] due to IO problem.
java.net.SocketTimeoutException: Read timed out
我连接的是http://maven.oschina.net/content/groups/public/