The Ultimate Guide to High Availability with MariaDB
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mariadb failed to start mysql.pid FILE SIZE EQUALS ZERO

I have mariadb columnstore installed on Amzaon EC2 instance. Our mariadb stopped working PM service up and running where as UM service is not starting. Centos = 7

cat info.log Jul 5 12:46:46 ip-172-16-10-27 ProcessMonitor[1340]: 46.697394 |0|0|0| I 18 CAL0000: MSG RECEIVED: Stop All process request... Jul 5 12:46:46 ip-172-16-10-27 ProcessMonitor[1340]: 46.697776 |0|0|0| I 18 CAL0000: STOPALL: ACK back to ProcMgr, STATUS_UPDATE only performed Jul 5 12:46:47 ip-172-16-10-27 ProcessMonitor[1340]: 47.698421 |0|0|0| I 18 CAL0000: MSG RECEIVED: Stop All process request... Jul 5 12:46:48 ip-172-16-10-27 ProcessMonitor[1340]: 48.844815 |0|0|0| I 18 CAL0000: STOPALL: ACK back to ProcMgr, return status = 0 Jul 5 12:46:57 ip-172-16-10-27 ProcessMonitor[1340]: 57.584789 |0|0|0| I 18 CAL0000: MSG RECEIVED: Shutdown Module request... Jul 5 12:46:57 ip-172-16-10-27 ProcessMonitor[1340]: 57.584894 |0|0|0| I 18 CAL0000: SHUTDOWNMODULE: ACK back to ProcMgr, return status = 0 Jul 5 12:47:42 ip-172-16-10-27 ProcessMonitor[30970]: 42.318944 |0|0|0| I 18 CAL0000: Jul 5 12:47:42 ip-172-16-10-27 ProcessMonitor[30970]: 42.319014 |0|0|0| I 18 CAL0000: **Process Monitor Started** Jul 5 12:48:25 ip-172-16-10-27 ProcessMonitor[30970]: 25.672306 |0|0|0| I 18 CAL0000: MSG RECEIVED: Update Calpont Config file Jul 5 12:48:25 ip-172-16-10-27 ProcessMonitor[30970]: 25.672802 |0|0|0| I 18 CAL0000: UPDATECONFIGFILE: Completed Jul 5 12:48:26 ip-172-16-10-27 ProcessMonitor[30970]: 26.674408 |0|0|0| I 18 CAL0000: MSG RECEIVED: Update Calpont Config file Jul 5 12:48:26 ip-172-16-10-27 ProcessMonitor[30970]: 26.674851 |0|0|0| I 18 CAL0000: UPDATECONFIGFILE: Completed Jul 5 12:48:27 ip-172-16-10-27 ProcessMonitor[30970]: 27.675776 |0|0|0| I 18 CAL0000: MSG RECEIVED: Update Calpont Config file Jul 5 12:48:27 ip-172-16-10-27 ProcessMonitor[30970]: 27.676099 |0|0|0| I 18 CAL0000: UPDATECONFIGFILE: Completed Jul 5 12:48:28 ip-172-16-10-27 ProcessMonitor[30970]: 28.678249 |0|0|0| I 18 CAL0000: MSG RECEIVED: Update Calpont Config file Jul 5 12:48:28 ip-172-16-10-27 ProcessMonitor[30970]: 28.678585 |0|0|0| I 18 CAL0000: UPDATECONFIGFILE: Completed Jul 5 12:48:29 ip-172-16-10-27 ProcessMonitor[30970]: 29.680066 |0|0|0| I 18 CAL0000: MSG RECEIVED: Update Calpont Config file Jul 5 12:48:29 ip-172-16-10-27 ProcessMonitor[30970]: 29.680407 |0|0|0| I 18 CAL0000: UPDATECONFIGFILE: Completed Jul 5 12:48:30 ip-172-16-10-27 ProcessMonitor[30970]: 30.681526 |0|0|0| I 18 CAL0000: MSG RECEIVED: Update Calpont Config file Jul 5 12:48:30 ip-172-16-10-27 ProcessMonitor[30970]: 30.681966 |0|0|0| I 18 CAL0000: UPDATECONFIGFILE: Completed Jul 5 12:48:31 ip-172-16-10-27 ProcessMonitor[30970]: 31.682826 |0|0|0| I 18 CAL0000: MSG RECEIVED: Configure Module Jul 5 12:48:31 ip-172-16-10-27 ProcessMonitor[30970]: 31.686100 |0|0|0| I 18 CAL0000: CONFIGURE: ACK back to ProcMgr, return status = 0 Jul 5 12:48:39 ip-172-16-10-27 ProcessMonitor[30970]: 39.746537 |0|0|0| I 18 CAL0000: MSG RECEIVED: Get Calpont Software Info Jul 5 12:48:39 ip-172-16-10-27 ProcessMonitor[30970]: 39.746642 |0|0|0| I 18 CAL0000: GETSOFTWAREINFO: ACK back to ProcMgr with 1.2.21 Jul 5 12:48:40 ip-172-16-10-27 ProcessMonitor[30970]: 40.747287 |0|0|0| I 18 CAL0000: MSG RECEIVED: Update Calpont Config file Jul 5 12:48:40 ip-172-16-10-27 ProcessMonitor[30970]: 40.747666 |0|0|0| I 18 CAL0000: UPDATECONFIGFILE: Completed Jul 5 12:48:45 ip-172-16-10-27 ProcessMonitor[30970]: 45.757970 |0|0|0| I 18 CAL0000: MSG RECEIVED: Start All process request... Jul 5 12:48:46 ip-172-16-10-27 oamcpp[30970]: 46.848238 |0|0|0| E 08 CAL0000: *mysql.pid FILE SIZE EQUALS ZERO Jul 5 12:48:46 ip-172-16-10-27 ProcessMonitor[30970]: 46.848362 |0|0|0| C 18 CAL0000: STARTALL: MySQL failed to start, start-module failure Jul 5 12:48:46 ip-172-16-10-27 ProcessMonitor[30970]: 46.849567 |0|0|0| I 18 CAL0000: STARTALL: ACK back to ProcMgr, return status = 1

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