What operating system prerequisites are required to start the Elastic Stack services?

IBM® Spectrum Symphony Explorer reports require the Elastic Stack management service and various Elasticsearch services to be started. Refer to Installing on a Linux management host or Installing to a shared environment for details on the Linux requirements for these services. Refer to System services for details about these services.

If these services fail to start because you have not configured the operating system prerequisites, these services will be in ERROR state, as will other dependent services. Here is an example output of these services failing to start:

elk-ela* ERROR    338   /Managem*Manage*yhr66vm  1     1      FINISH     1337 
elk-man* INIT           /Managem*Manage*                                     
elk-ela* ALLOCAT* 347   /Managem*Manage*yhr66vm  1     1      FINISH     1339
Explorer INIT           /Managem*Manage*                                     
elk-ela* ALLOCAT* 349   /Managem*Manage*yhr66vm  1     1      FINISH     1338

Additionally, PEM will report Job monitor errors, as Elasticsearch uses this the

Job
monitor

component:

2017-08-30 01:18:46.000 EDT WARN [6303:140502357432128] System daemon PEM is up on host <example.ibm.com> in cluster <mycluster>
2017-08-30 01:19:22.000 EDT ERROR [6303:140502357432128] Job monitor reported ERROR as command's status, terminating activity <15> and job monitor process <9717>
2017-08-30 01:19:22.000 EDT ERROR [6303:140502357432128] Job monitor reported ERROR as command's status, terminating activity <16> and job monitor process <9716>
2017-08-30 01:19:46.000 EDT ERROR [6303:140502357432128] Job monitor reported ERROR as command's status, terminating activity <19> and job monitor process <13654>
2017-08-30 01:19:46.000 EDT ERROR [6303:140502357432128] Job monitor reported ERROR as command's status, terminating activity <18> and job monitor process <13653>
2017-08-30 01:19:47.000 EDT ERROR [6303:140502357432128] Job monitor reported ERROR as command's status, terminating activity <17> and job monitor process <12634>
2017-08-30 01:20:10.000 EDT ERROR [6303:140502357432128] Job monitor reported ERROR as command's status, terminating activity <24> and job monitor process <17413>