Seung-Min created FLINK-31818:
---------------------------------
Summary: parsing error of
'security.kerberos.access.hadoopFileSystems' in flink-conf.yaml
Key: FLINK-31818
URL: https://issues.apache.org/jira/browse/FLINK-31818
Project: Flink
Issue Type: Bug
Components: Runtime / Configuration
Affects Versions: 1.17.0
Reporter: Seung-Min
Fix For: 1.17.0
There is a parsing error when I gave two or more hdfs namenodes URI separated
by commas as the value of key attribute
'security.kerberos.access.hadoopFileSystems'.
For example, I set this key attribute and vlue like below in flink-conf.yaml
```yaml
security.kerberos.access.hadoopFileSystems:
hdfs://hadoop-nn1.testurl.com:8020,hdfs://hadoop-nn2.testurl.com:8020
```
then, the slash (/) is missing in second URI in parsed value
```
hdfs://hadoop-nn1.testurl.com:8020,hdfs:/hadoop-nn2.testurl.com:8020
```
Received error message is here.
```dsharp
Caused by: org.apache.flink.util.FlinkRuntimeException: java.io.IOException:
Incomplete HDFS URI, no host:
hdfs://hadoop-nn1.testurl.com:8020,hdfs:/hadoop-nn2.testurl.com:8020
at
org.apache.flink.runtime.security.token.hadoop.HadoopFSDelegationTokenProvider.lambda$getFileSystemsToAccess$2(HadoopFSDelegationTokenProvider.java:168)
~[flink-dist-1.17.0.jar:1.17.0]
at java.util.ArrayList.forEach(ArrayList.java:1259) ~[?:1.8.0_362]
at
org.apache.flink.runtime.security.token.hadoop.HadoopFSDelegationTokenProvider.getFileSystemsToAccess(HadoopFSDelegationTokenProvider.java:157)
~[flink-dist-1.17.0.jar:1.17.0]
at
org.apache.flink.runtime.security.token.hadoop.HadoopFSDelegationTokenProvider.lambda$obtainDelegationTokens$1(HadoopFSDelegationTokenProvider.java:113)
~[flink-dist-1.17.0.jar:1.17.0]
at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_362]
at javax.security.auth.Subject.doAs(Subject.java:422) ~[?:1.8.0_362]
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1966)
~[hadoop-common-2.10.0-khp-20210414.jar:?]
at
org.apache.flink.runtime.security.token.hadoop.HadoopFSDelegationTokenProvider.obtainDelegationTokens(HadoopFSDelegationTokenProvider.java:108)
~[flink-dist-1.17.0.jar:1.17.0]
at
org.apache.flink.runtime.security.token.DefaultDelegationTokenManager.lambda$obtainDelegationTokensAndGetNextRenewal$1(DefaultDelegationTokenManager.java:228)
~[flink-dist-1.17.0.jar:1.17.0]
... 13 more
Caused by: java.io.IOException: Incomplete HDFS URI, no host:
hdfs://hadoop-bi-nn1.dakao.io:8020,hdfs:/hadoop-bi-nn2.dakao.io:8020
at
org.apache.hadoop.hdfs.DistributedFileSystem.initialize(DistributedFileSystem.java:156)
~[hadoop-hdfs-client-2.10.0-khp-20210414.jar:?]
at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:3241)
~[hadoop-common-2.10.0-khp-20210414.jar:?]
at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:122)
~[hadoop-common-2.10.0-khp-20210414.jar:?]
at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:3290)
~[hadoop-common-2.10.0-khp-20210414.jar:?]
at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:3258)
~[hadoop-common-2.10.0-khp-20210414.jar:?]
at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:471)
~[hadoop-common-2.10.0-khp-20210414.jar:?]
at org.apache.hadoop.fs.Path.getFileSystem(Path.java:356)
~[hadoop-common-2.10.0-khp-20210414.jar:?]
at
org.apache.flink.runtime.security.token.hadoop.HadoopFSDelegationTokenProvider.lambda$getFileSystemsToAccess$2(HadoopFSDelegationTokenProvider.java:163)
~[flink-dist-1.17.0.jar:1.17.0]
at java.util.ArrayList.forEach(ArrayList.java:1259) ~[?:1.8.0_362]
at
org.apache.flink.runtime.security.token.hadoop.HadoopFSDelegationTokenProvider.getFileSystemsToAccess(HadoopFSDelegationTokenProvider.java:157)
~[flink-dist-1.17.0.jar:1.17.0]
at
org.apache.flink.runtime.security.token.hadoop.HadoopFSDelegationTokenProvider.lambda$obtainDelegationTokens$1(HadoopFSDelegationTokenProvider.java:113)
~[flink-dist-1.17.0.jar:1.17.0]
at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_362]
at javax.security.auth.Subject.doAs(Subject.java:422) ~[?:1.8.0_362]
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1966)
~[hadoop-common-2.10.0-khp-20210414.jar:?]
at
org.apache.flink.runtime.security.token.hadoop.HadoopFSDelegationTokenProvider.obtainDelegationTokens(HadoopFSDelegationTokenProvider.java:108)
~[flink-dist-1.17.0.jar:1.17.0]
at
org.apache.flink.runtime.security.token.DefaultDelegationTokenManager.lambda$obtainDelegationTokensAndGetNextRenewal$1(DefaultDelegationTokenManager.java:228)
~[flink-dist-1.17.0.jar:1.17.0]
... 13 more
```
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