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Posted to hdfs-issues@hadoop.apache.org by "hansonhe (Jira)" <ji...@apache.org> on 2022/09/16 02:58:00 UTC
[jira] [Updated] (HDFS-16773) Error creating DomainSocket
[ https://issues.apache.org/jira/browse/HDFS-16773?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
hansonhe updated HDFS-16773:
----------------------------
Description:
org.apache.hadoop.hdfs.shortcircuit.DomainSocketFactory: error creating DomainSocket java.net.ConnectException: connect(2) error: No such file or directory when trying to connect to '/var/lib/hadoop-hdfs/dn_socket' at org.apache.hadoop.net.unix.DomainSocket.connect0(Native Method) at org.apache.hadoop.net.unix.DomainSocket.connect(DomainSocket.java:250) at org.apache.hadoop.hdfs.shortcircuit.DomainSocketFactory.createSocket(DomainSocketFactory.java:164) at org.apache.hadoop.hdfs.BlockReaderFactory.nextDomainPeer(BlockReaderFactory.java:815) at org.apache.hadoop.hdfs.BlockReaderFactory.createShortCircuitReplicaInfo(BlockReaderFactory.java:531) at org.apache.hadoop.hdfs.shortcircuit.ShortCircuitCache.create(ShortCircuitCache.java:784) at org.apache.hadoop.hdfs.shortcircuit.ShortCircuitCache.fetchOrCreate(ShortCircuitCache.java:718) at org.apache.hadoop.hdfs.BlockReaderFactory.getBlockReaderLocal(BlockReaderFactory.java:484) at org.apache.hadoop.hdfs.BlockReaderFactory.build(BlockReaderFactory.java:354) at org.apache.hadoop.hdfs.DFSInputStream.blockSeekTo(DFSInputStream.java:658)
I set dfs.domain.socket.path=/var/run/hadoop_dn_socket after hadoop cluster started. But to create this socket file need to restart all datanodes server on my hadoop cluster，Has any other better ways to create it?
（1）if to copy created socket file from another datanode which has been restarted. Is it OK？
（2）if choose to create it manually，How to create it ?
was:org.apache.hadoop.hdfs.shortcircuit.DomainSocketFactory: error creating DomainSocket java.net.ConnectException: connect(2) error: No such file or directory when trying to connect to '/var/lib/hadoop-hdfs/dn_socket' at org.apache.hadoop.net.unix.DomainSocket.connect0(Native Method) at org.apache.hadoop.net.unix.DomainSocket.connect(DomainSocket.java:250) at org.apache.hadoop.hdfs.shortcircuit.DomainSocketFactory.createSocket(DomainSocketFactory.java:164) at org.apache.hadoop.hdfs.BlockReaderFactory.nextDomainPeer(BlockReaderFactory.java:815) at org.apache.hadoop.hdfs.BlockReaderFactory.createShortCircuitReplicaInfo(BlockReaderFactory.java:531) at org.apache.hadoop.hdfs.shortcircuit.ShortCircuitCache.create(ShortCircuitCache.java:784) at org.apache.hadoop.hdfs.shortcircuit.ShortCircuitCache.fetchOrCreate(ShortCircuitCache.java:718) at org.apache.hadoop.hdfs.BlockReaderFactory.getBlockReaderLocal(BlockReaderFactory.java:484) at org.apache.hadoop.hdfs.BlockReaderFactory.build(BlockReaderFactory.java:354) at org.apache.hadoop.hdfs.DFSInputStream.blockSeekTo(DFSInputStream.java:658)
> Error creating DomainSocket
> ---------------------------
>
> Key: HDFS-16773
> URL: https://issues.apache.org/jira/browse/HDFS-16773
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 3.1.4
> Reporter: hansonhe
> Priority: Major
>
> org.apache.hadoop.hdfs.shortcircuit.DomainSocketFactory: error creating DomainSocket java.net.ConnectException: connect(2) error: No such file or directory when trying to connect to '/var/lib/hadoop-hdfs/dn_socket' at org.apache.hadoop.net.unix.DomainSocket.connect0(Native Method) at org.apache.hadoop.net.unix.DomainSocket.connect(DomainSocket.java:250) at org.apache.hadoop.hdfs.shortcircuit.DomainSocketFactory.createSocket(DomainSocketFactory.java:164) at org.apache.hadoop.hdfs.BlockReaderFactory.nextDomainPeer(BlockReaderFactory.java:815) at org.apache.hadoop.hdfs.BlockReaderFactory.createShortCircuitReplicaInfo(BlockReaderFactory.java:531) at org.apache.hadoop.hdfs.shortcircuit.ShortCircuitCache.create(ShortCircuitCache.java:784) at org.apache.hadoop.hdfs.shortcircuit.ShortCircuitCache.fetchOrCreate(ShortCircuitCache.java:718) at org.apache.hadoop.hdfs.BlockReaderFactory.getBlockReaderLocal(BlockReaderFactory.java:484) at org.apache.hadoop.hdfs.BlockReaderFactory.build(BlockReaderFactory.java:354) at org.apache.hadoop.hdfs.DFSInputStream.blockSeekTo(DFSInputStream.java:658)
> I set dfs.domain.socket.path=/var/run/hadoop_dn_socket after hadoop cluster started. But to create this socket file need to restart all datanodes server on my hadoop cluster，Has any other better ways to create it?
> （1）if to copy created socket file from another datanode which has been restarted. Is it OK？
> （2）if choose to create it manually，How to create it ?
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