Impala Daemons

The Impala Daemons page displays timeseries data for Impala daemons

You can use these charts to view anomalies such as increase in open files at a particular time and improve queries to reduce the access of files.

Chart Name	Description
Data Stream Service RPCS Queue Overflow	The total number of incoming RPCs that were rejected due to overflow of the service queue.
Local Assignments Across Impala Daemons Across Impala Daemons	The number of assignments operating on local data.
Total Impala Daemon Embedded JVM Heap Committed Usage Across Impala Daemons	The JVM heap Committed Usage Bytes.
Total Impala Daemon Embedded JVM Heap Current Usage Across Impala Daemons	The JVM heap Current Usage Bytes.
Total Impala Daemon Embedded JVM Heap INIT Usage Across Impala Daemons	The JVM heap Init Usage Bytes.
Total Virtual Memory Across Impala Daemons	The total bytes of memory mappings in this process (virtual memory size.
Total Resident Set Size Across Impala Daemons	The Resident Set Size (RSS) of this process, including TCMalloc, buffer pool and JVM.
Total Total Used Memory Across Impala Daemons	The total memory currently used by TCMalloc and buffer pool.
Assignments Across Impala Daemons	The number of assignments.
Databases Across Impala Daemons	The number of databases in the catalog.
Total Databases Across Impala Daemons	The total number of databases in the catalog.
Tables Across Impala Daemons	The number of tables in the catalog.
Hash Tables Size Across Impala Daemons	The current size of all allocated hash tables.
IO Buffers Across Impala Daemons	The number of allocated IO buffers.
Open Files Across Impala Daemons	The current number of files opened by the IO Manager.