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https://issues.apache.org/jira/browse/HBASE-24403?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17142054#comment-17142054
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Hudson commented on HBASE-24403:
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Results for branch master
[build #1764 on
builds.a.o|https://builds.apache.org/job/HBase%20Nightly/job/master/1764/]: (x)
*{color:red}-1 overall{color}*
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details (if available):
(/) {color:green}+1 general checks{color}
-- For more information [see general
report|https://builds.apache.org/job/HBase%20Nightly/job/master/1764/General_20Nightly_20Build_20Report/]
(x) {color:red}-1 jdk8 hadoop2 checks{color}
-- For more information [see jdk8 (hadoop2)
report|https://builds.apache.org/job/HBase%20Nightly/job/master/1663//JDK8_Nightly_Build_Report_(Hadoop2)/]
(x) {color:red}-1 jdk8 hadoop3 checks{color}
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(/) {color:green}+1 jdk11 hadoop3 checks{color}
-- For more information [see jdk11
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(/) {color:green}+1 source release artifact{color}
-- See build output for details.
(/) {color:green}+1 client integration test{color}
> FsDelegationToken should cache Token
> ------------------------------------
>
> Key: HBASE-24403
> URL: https://issues.apache.org/jira/browse/HBASE-24403
> Project: HBase
> Issue Type: Bug
> Reporter: wuchang
> Assignee: wuchang
> Priority: Major
> Fix For: 3.0.0-alpha-1, 2.3.0, 2.2.6
>
> Attachments: 24403.patch
>
>
> When doing Bulkload, we find that FsDelegationToken will acquire token of
> NameNode everytime for a single file, although, from the comment of
> acquireDelegationToken(), it claims that it is trying to find token in cache
> firstly, but the newly requested token is never put to cache and thus the
> cache is still empty for the following request;
> In cases there are many files to do the bulk load, the token request will
> cause big short to NameNode.
>
> {code:java}
> public void acquireDelegationToken(final FileSystem fs)
> throws IOException {
> if (userProvider.isHadoopSecurityEnabled()) {
> this.fs = fs;
> userToken = userProvider.getCurrent().getToken("HDFS_DELEGATION_TOKEN",
> fs.getCanonicalServiceName());
> if (userToken == null) {
> hasForwardedToken = false;
> try {
> userToken = fs.getDelegationToken(renewer);
> } catch (NullPointerException npe) {
> // we need to handle NullPointerException in case HADOOP-10009 is missing
> LOG.error("Failed to get token for " + renewer);
> }
> } else {
> hasForwardedToken = true;
> LOG.info("Use the existing token: " + userToken);
> }
> }
> }{code}
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