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