clustersh
This is a program to run commands and transfer files between multiple
servers over SSH.
[ Usage ]
clustersh [-a addresses] [-c chunk] [-h] [-u user] command args
[ Flags ]
-a addresses The comma-separated list of servers to send
to. There must not be any spaces in this list.
-c chunk The size of chunks to transfer, in bytes. The
default is 16MB.
-u user The SSH username to use. It must be the
same for all hosts. Defaults to the value
of the USER environment variable.
[ Commands ]
exec, run: run a command on the servers
The args list must be the command line to send to the hosts.
upload, up, push, send: upload a file to the servers
The first argument is the local file to upload, and the second
is the filename to store it as on the remote.
download, down, pull, fetch: download a file from the servers
The first argument is the filename to fetch.The second argument
is the base name for the local file. It will have a '-' and the
hostname appended.
[ Examples ]
Tailing syslog on the hosts "mesos-01," "mesos-02," and "mesos-03"
with the same username as the logged in user:
$ clustersh -a mesos-01,mesos-02,mesos-03 tail /var/log/syslog
2015/12/22 20:37:17 waiting for sessions to complete
[mesos-02] Dec 22 23:37:20 mesos-02 chronos[1848]: [2015-12-22 23:37:20,325] INFO Declined unused offers with filter refuseSeconds=5.0 (use --decline_offer_duration to reconfigure) (org.apache.mesos.chronos.scheduler.mesos.MesosJobFramework:97)
[mesos-02] Dec 22 23:37:20 mesos-02 mesos-master[534]: I1222 23:37:20.326491 612 master.cpp:3297] Processing DECLINE call for offers: [ 07e0c918-efa9-48c3-9851-77abf0c95f92-O61048 ] for framework 07e0c918-efa9-48c3-9851-77abf0c95f92-0001 (chronos-2.4.0) at scheduler-c6926d5b-2e35-47d9-89fb-0a407234f0ba@159.203.201.212:48192
[mesos-02] Dec 22 23:37:20 mesos-02 mesos-master[534]: I1222 23:37:20.326786 612 hierarchical.cpp:744] Recovered cpus(*):1; mem(*):497; disk(*):14910; ports(*):[31000-32000] (total: cpus(*):1; mem(*):497; disk(*):14910; ports(*):[31000-32000], allocated: ) on slave 07e0c918-efa9-48c3-9851-77abf0c95f92-S78 from framework 07e0c918-efa9-48c3-9851-77abf0c95f92-0001
[mesos-01] Dec 22 23:37:19 mesos-01 marathon[1719]: [2015-12-22 23:37:19,045] INFO 73.189.108.122 - - [23/Dec/2015:04:37:19 +0000] "GET //mesos-01:8080/v2/deployments HTTP/1.1" 200 2 "http://mesos-01:8080/ui/" "Mozilla/5.0 (X11; Linux x86_64; rv:43.0) Gecko/20100101 Firefox/43.0 Iceweasel/43.0" (mesosphere.chaos.http.ChaosRequestLog$$EnhancerByGuice$$f7252a53:qtp643328884-33)
[mesos-01] Dec 22 23:37:19 mesos-01 marathon[1719]: [2015-12-22 23:37:19,047] INFO 73.189.108.122 - - [23/Dec/2015:04:37:19 +0000] "GET //mesos-01:8080/v2/apps HTTP/1.1" 200 11 "http://mesos-01:8080/ui/" "Mozilla/5.0 (X11; Linux x86_64; rv:43.0) Gecko/20100101 Firefox/43.0 Iceweasel/43.0" (mesosphere.chaos.http.ChaosRequestLog$$EnhancerByGuice$$f7252a53:qtp643328884-27)
[mesos-01] Dec 22 23:37:19 mesos-01 marathon[1719]: [2015-12-22 23:37:19,048] INFO 73.189.108.122 - - [23/Dec/2015:04:37:19 +0000] "GET //mesos-01:8080/v2/queue HTTP/1.1" 200 12 "http://mesos-01:8080/ui/" "Mozilla/5.0 (X11; Linux x86_64; rv:43.0) Gecko/20100101 Firefox/43.0 Iceweasel/43.0" 1 (mesosphere.chaos.http.ChaosRequestLog$$EnhancerByGuice$$f7252a53:qtp643328884-29)
[mesos-03] Dec 22 23:35:09 mesos-03 mesos-slave[2675]: I1222 23:35:09.231684 2692 slave.cpp:4039] Current disk usage 8.93%. Max allowed age: 5.674993196753403days
[mesos-03] Dec 22 23:36:09 mesos-03 mesos-slave[2675]: I1222 23:36:09.232365 2694 slave.cpp:4039] Current disk usage 8.93%. Max allowed age: 5.674993196753403days
[mesos-03] Dec 22 23:37:09 mesos-03 mesos-slave[2675]: I1222 23:37:09.232836 2691 slave.cpp:4039] Current disk usage 8.93%. Max allowed age: 5.674993196753403days
Transferring the `clustersh` program to the same three hosts:
$ clustersh -a mesos-01,mesos-02,mesos-03 push clustersh clustersh
2015/12/22 20:39:23 waiting for sessions to complete
[mesos-02] wrote 6422688-byte chunk
[mesos-02] clustersh uploaded to clustersh
[mesos-03] wrote 6422688-byte chunk
[mesos-03] clustersh uploaded to clustersh
[mesos-01] wrote 6422688-byte chunk
[mesos-01] clustersh uploaded to clustersh
Copying the `/var/log/mesos/marathon.log` file from each of the three hosts:
$ clustersh -a mesos-01,mesos-02,mesos-03 fetch /var/log/mesos/marathon.log marathon.log
2015/12/22 20:42:28 waiting for sessions to complete
[mesos-02] wrote 467461-byte chunk
[mesos-02] /var/log/mesos/marathon.log downloaded to marathon.log-mesos-02
[mesos-03] wrote 415850-byte chunk
[mesos-03] /var/log/mesos/marathon.log downloaded to marathon.log-mesos-03
[mesos-01] wrote 2940327-byte chunk
[mesos-01] /var/log/mesos/marathon.log downloaded to marathon.log-mesos-01
$ ls -1 marathon.log*
marathon.log-mesos-01
marathon.log-mesos-02
marathon.log-mesos-03
Kyle Isom
f8c64d3be5