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Re: Showing/finding Impala connections from the impala webpage - Impala - [mail # user]
...The total number of connections is on the metrics page. Look forimpala.thrift-server.beeswax-frontend.total-connections andimpala.thrift-server.hiveserver2-frontend.total-connections.HenryOn...
   Author: Henry Robinson, 2015-01-30, 04:30
[IMPALA-1718] Impala should use a non-blocking RPC stack for backend comms. - Impala - [issue]
...Impala currently uses a large number of TCP connections (see IMPALA-1717). We want to move to a non-blocking RPC stack, at least for backend communication, to reduce the pressure on file des...
http://issues.cloudera.org/browse/IMPALA-1718    Author: Henry Robinson, 2015-01-30, 00:40
[IMPALA-1717] Reduce backend TCP connections per-node to be independent of the number of backends - Impala - [issue]
...We currently use up to |nodes|*|fragments| TCP connections per backend. Eventually, we should use a fixed number of connections over which all data stream sending can be multiplexed, but we ...
http://issues.cloudera.org/browse/IMPALA-1717    Author: Henry Robinson, 2015-01-30, 00:34
[IMPALA-1716] Move runtime profiles to metrics, JSON - Impala - [issue]
...With the recent changes to the metrics infrastructure, we should start to move the runtime profiles to be a MetricGroup, and replace the counters with their metric equivalents. The aim is to...
http://issues.cloudera.org/browse/IMPALA-1716    Author: Henry Robinson, 2015-01-30, 00:30
[IMPALA-1664] Rename 'keep-alive' to 'heartbeat' in statestore - Impala - [issue]
...The statestore is a little loose about when it uses 'heartbeat' and when it uses 'keep-alive'. We should standardise on heartbeat....
http://issues.cloudera.org/browse/IMPALA-1664    Author: Henry Robinson, 2015-01-29, 20:56
[IMPALA-1689] Support profiling the planning process - Impala - [issue]
...We should add the ability to instrument the timeline of the planning process in the same way we can instrument the execution. We can return counters or whatever in the Thrift structures the ...
http://issues.cloudera.org/browse/IMPALA-1689    Author: Henry Robinson, 2015-01-29, 05:22
[IMPALA-1712] Spurious stale block locality messages - Impala - [issue]
...Several users have reported seeing Block locality metadata for table 'foo' may be stale. Consider running "INVALIDATE METADATA foo"messages frequently. Running INVALIDATE METADATA doesn't fi...
http://issues.cloudera.org/browse/IMPALA-1712    Author: Henry Robinson, 2015-01-29, 01:44
[IMPALA-1598] Add error codes to user-facing msgs and use them to de-duplicate high-volume output - Impala - [issue]
...Some error conditions cause a high volume of output that gets sent to the users, particularly if each backend produces several messages that are aggregated by the coordinator.An example is t...
http://issues.cloudera.org/browse/IMPALA-1598    Author: Henry Robinson, 2015-01-28, 02:13
[IMPALA-1708] Partitions with 0 rows but > 0 files are considered not to have stats in EXPLAIN - Impala - [issue]
...If you have a partition with 0 rows, HdfsScanNode.computeStats() will add it to numPartitionsMissingStats_. This is incorrect, partitions with > -1 rows are considered to have statistics....
http://issues.cloudera.org/browse/IMPALA-1708    Author: Henry Robinson, 2015-01-27, 22:26
[IMPALA-1579] unix_timestamp() builtins return INT - Impala - [issue]
...unix_timestamp() wraps when it hits INT_MAX.select cast('2038-01-19 03:14:06' as timestamp) a,cast(unix_timestamp(cast('2038-01-19 03:14:06' as timestamp)) as bigint) b,cast('2038-01-19 03:1...
http://issues.cloudera.org/browse/IMPALA-1579    Author: Henry Robinson, 2015-01-27, 00:32
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB