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Posted to issues-all@impala.apache.org by "ASF subversion and git services (Jira)" <ji...@apache.org> on 2023/06/08 16:36:00 UTC
[jira] [Commented] (IMPALA-12158) "pgrep impalad" does not work anymore
[ https://issues.apache.org/jira/browse/IMPALA-12158?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17730640#comment-17730640 ]
ASF subversion and git services commented on IMPALA-12158:
----------------------------------------------------------
Commit f5aa242de6ae78bab7f0532204637797ba8b84c0 in impala's branch refs/heads/master from Michael Smith
[ https://gitbox.apache.org/repos/asf?p=impala.git;h=f5aa242de ]
IMPALA-12158: Restore process name for daemons
IMPALA-10794 introduced names for threads, which messed up process names
too for catalogd and impalad.
Sets a pseudo-property sun.java.command that is used by jps to read the
Java process name. Use that property to replace the name of the "main"
thread (which, when updated, also updates the process name).
The process name is also used for renames in ThreadNameAnnotator so that
the original process name is always present. This ensures tools like
pgrep can find impalad and catalogd.
Change-Id: I7469b4f595acc1949286520a8e6086716bec0b1f
Reviewed-on: http://gerrit.cloudera.org:8080/19990
Reviewed-by: Impala Public Jenkins <im...@cloudera.com>
Tested-by: Michael Smith <mi...@cloudera.com>
> "pgrep impalad" does not work anymore
> -------------------------------------
>
> Key: IMPALA-12158
> URL: https://issues.apache.org/jira/browse/IMPALA-12158
> Project: IMPALA
> Issue Type: Bug
> Reporter: Gergely Fürnstáhl
> Assignee: Michael Smith
> Priority: Minor
> Fix For: Impala 4.3.0
>
>
> IMPALA-10794 introduced names for threads, which messed up process names too in catalogd and impalad (due to JNI calls, did not researched further):
> {code:java}
> gfurnstahl@gfurnstahl-OptiPlex-7070:~/Impala(IMPALA-11619_gerrit)$ ps fux | egrep "(impala|statestore|catalog)d"
> gfurnst+ 1291670 1.2 0.2 530472 71364 pts/0 Sl 15:08 0:00 \_ /home/gfurnstahl/Impala/be/build/latest/service/statestored -logbufsecs=5 -v=1 -max_log_files=10 -log_filename=statestored -log_dir=/home/gfurnstahl/Impala/logs/cluster
> gfurnst+ 1291687 11.7 1.1 10374016 388260 pts/0 Sl 15:08 0:07 \_ /home/gfurnstahl/Impala/be/build/latest/service/catalogd -logbufsecs=5 -v=1 -max_log_files=10 -log_filename=catalogd -log_dir=/home/gfurnstahl/Impala/logs/cluster -kudu_master_hosts localhost --catalog_topic_mode=minimal --hms_event_polling_interval_s=1
> gfurnst+ 1291771 15.0 1.4 18684832 478288 pts/0 Sl 15:08 0:09 \_ /home/gfurnstahl/Impala/be/build/latest/service/impalad -disconnected_session_timeout 21600 -kudu_client_rpc_timeout_ms 60000 -kudu_master_hosts localhost -mem_limit=7766732526 -logbufsecs=5 -v=1 -max_log_files=10 -log_filename=impalad -log_dir=/home/gfurnstahl/Impala/logs/cluster -beeswax_port=21000 -hs2_port=21050 -hs2_http_port=28000 -krpc_port=27000 -state_store_subscriber_port=23000 -webserver_port=25000 --enable_minidumps=false --use_local_catalog=true -geospatial_library=HIVE_ESRI
> gfurnst+ 1291773 14.9 1.4 18685196 475980 pts/0 Sl 15:08 0:09 \_ /home/gfurnstahl/Impala/be/build/latest/service/impalad -disconnected_session_timeout 21600 -kudu_client_rpc_timeout_ms 60000 -kudu_master_hosts localhost -mem_limit=7766732526 -logbufsecs=5 -v=1 -max_log_files=10 -log_filename=impalad_node1 -log_dir=/home/gfurnstahl/Impala/logs/cluster -beeswax_port=21001 -hs2_port=21051 -hs2_http_port=28001 -krpc_port=27001 -state_store_subscriber_port=23001 -webserver_port=25001 --enable_minidumps=false --use_local_catalog=true -geospatial_library=HIVE_ESRI
> gfurnst+ 1291776 14.6 1.4 18686220 479284 pts/0 Sl 15:08 0:09 \_ /home/gfurnstahl/Impala/be/build/latest/service/impalad -disconnected_session_timeout 21600 -kudu_client_rpc_timeout_ms 60000 -kudu_master_hosts localhost -mem_limit=7766732526 -logbufsecs=5 -v=1 -max_log_files=10 -log_filename=impalad_node2 -log_dir=/home/gfurnstahl/Impala/logs/cluster -beeswax_port=21002 -hs2_port=21052 -hs2_http_port=28002 -krpc_port=27002 -state_store_subscriber_port=23002 -webserver_port=25002 --enable_minidumps=false --use_local_catalog=true -geospatial_library=HIVE_ESRI
> gfurnstahl@gfurnstahl-OptiPlex-7070:~/Impala(IMPALA-11619_gerrit)$ grep main */comm
> grep: */comm: No such file or directory
> gfurnstahl@gfurnstahl-OptiPlex-7070:~/Impala(IMPALA-11619_gerrit)$ grep main /proc/*/comm
> /proc/1291687/comm:main
> /proc/1291771/comm:main
> /proc/1291773/comm:main
> /proc/1291776/comm:main
> gfurnstahl@gfurnstahl-OptiPlex-7070:~/Impala(IMPALA-11619_gerrit)$ grep statestored /proc/*/comm
> /proc/1291670/comm:statestored
> gfurnstahl@gfurnstahl-OptiPlex-7070:~/Impala(IMPALA-11619_gerrit)$ {code}
> Now pgrep need -f to look for the search string in the program path too, not only in the process name
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