[ https://issues.apache.org/jira/browse/HDFS-11702?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Kihwal Lee updated HDFS-11702: ------------------------------ Resolution: Fixed Hadoop Flags: Reviewed Fix Version/s: 2.8.2 3.0.0-alpha3 Status: Resolved (was: Patch Available) Committed this to trunk, branch-2 and branch-2.8. > Remove indefinite caching of key provider uri in DFSClient > ---------------------------------------------------------- > > Key: HDFS-11702 > URL: https://issues.apache.org/jira/browse/HDFS-11702 > Project: Hadoop HDFS > Issue Type: Bug > Components: hdfs-client > Reporter: Rushabh S Shah > Assignee: Rushabh S Shah > Fix For: 3.0.0-alpha3, 2.8.2 > > Attachments: HDFS-11702.patch > > > There is an indefinite caching of key provider uri in dfsclient. > Relevant piece of code. > {code:title=DFSClient.java|borderStyle=solid} > /** > * The key provider uri is searched in the following order. > * 1. If there is a mapping in Credential's secrets map for namenode uri. > * 2. From namenode getServerDefaults rpc. > * 3. Finally fallback to local conf. > * @return keyProviderUri if found from either of above 3 cases, > * null otherwise > * @throws IOException > */ > URI getKeyProviderUri() throws IOException { > if (keyProviderUri != null) { > return keyProviderUri; > } > // Lookup the secret in credentials object for namenodeuri. > Credentials credentials = ugi.getCredentials(); > ... > ... > {code} > Once the key provider uri is set, it won't refresh the value even if the key > provider uri on namenode is changed. > For long running clients like on oozie servers, this means we have to bounce > all the oozie servers to get the change reflected. > After this change, the client will cache the value for an hour after which it > will issue getServerDefaults call and will refresh the key provider uri. -- This message was sent by Atlassian JIRA (v6.3.15#6346) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org