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Yun Tang closed FLINK-6647. --------------------------- Resolution: Information Provided Current {{FileSystemCheckpointStorage}} would already check whether the path uri is legal on initialization. > Fail-fast on invalid RocksDBStateBackend configuration > ------------------------------------------------------ > > Key: FLINK-6647 > URL: https://issues.apache.org/jira/browse/FLINK-6647 > Project: Flink > Issue Type: Bug > Components: Runtime / State Backends > Reporter: Andrey > Priority: Minor > Labels: auto-deprioritized-major, stale-minor > > Currently: > * setup "state.backend.rocksdb.checkpointdir=hdfs:///some/base/path/hdfs" > * setup backend: state.backend: > "org.apache.flink.contrib.streaming.state.RocksDBStateBackendFactory" > * rocksdb doesn't support hdfs backend so in logs: > {code} > 2017-05-19 15:42:33,737 ERROR > org.apache.flink.contrib.streaming.state.RocksDBStateBackend - Local DB files > directory '/some/base/path/hdfs' does not exist and cannot be created. > {code} > * however job continue execution and IOManager temp directory will be picked > up for rocksdb files. > There are several issues with such approach: > * after "ERROR" message printed and before developer fixes configuration, > /tmp directory/partition might run out of disk space. > * if hdfs base path is the same as local path, then no errors in logs and > rocksdb files will be written into an incorrect location. For example: > "hdfs:///home/flink/data" will cause an issue. > Expected: > * validate URI and throw IllegalArgumentException like already implemented in > "RocksDBStateBackend.setDbStoragePaths" method. -- This message was sent by Atlassian Jira (v8.20.1#820001)