[IMPALA-10080] Skip loading HDFS cache pools for non-HDFS file systems

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Impala 3.0, Impala 2.12.0, Impala 3.1.0, Impala 3.2.0, Impala 3.3.0, Impala 3.4.0
• Fix Version/s: Impala 4.0.0
• Component/s: Catalog
• Epic Color: ghx-label-2
• Assignee: Quanlong Huang
• Reporter: Quanlong Huang
• Created: 13/Aug/20 02:38
• Updated: 27/Aug/20 10:58
• Resolved: 27/Aug/20 10:58

Description

Saw some IllegalStateExceptions when running on non-HDFS filesystesms:

I0812 01:48:31.159904  5375 CatalogServiceCatalog.java:1601] Invalidating all metadata. Version: 0
E0812 01:48:31.164568  5375 CatalogServiceCatalog.java:519] Error loading cache pools: 
Java exception follows:
java.lang.IllegalStateException
        at com.google.common.base.Preconditions.checkState(Preconditions.java:492)
        at org.apache.impala.common.FileSystemUtil.getDistributedFileSystem(FileSystemUtil.java:465)
        at org.apache.impala.catalog.CatalogServiceCatalog$CachePoolReader.run(CatalogServiceCatalog.java:512)
        at org.apache.impala.catalog.CatalogServiceCatalog.reset(CatalogServiceCatalog.java:1620)
        at org.apache.impala.service.JniCatalog.<init>(JniCatalog.java:137)

This won't break anything. But it's good to skip this as what we have already done in CatalogServiceCatalog#CatalogServiceCatalog().