Automation

I created a script to retrieve the WCPU of RPD in OIDs, but it's not functioning as expected. Could someone assist me with this?

------------------------------
VIGNESH KANNAN
------------------------------

My first guess would be that the following is required:

var $cpu_usage = $match[2];

Node sets start at 1, so jcs:regex() will return the entire string in node 1, and the matches in subsequent nodes. 

You will also need to double escape the last part of your regex.  Special characters need to be double escaped as SLAX to XSLT conversion will remove one.

rpd\\{rpd\\}

Finally, I think that \s doesn't work in SLAX, so change to [[.space.]] instead.

Last thing which was more of an observation than a particular issue, is that using jcs:invoke() is fine when just used once as it opens a connection, executes the RPC and then closes the connection.

However, if you are using it multiple times there is an overhead, as each time a connection is being opened and closed.  For just a few times this is fine, but I prefer to open the connection once using jcs:open(), then execute as many RPC as needed using jcs:execute(), and then finally close the connection, when it is no longer needed using jcs:close().

For scripts that perform a number of RPCs, especially when they're in a foreach loop, this can improve execution times significantly, as only a single connection is opened/closed rather than in each iteration.

I did run your script on a virtual device I had access to, and made a few changes, more to match the output that I was getting which was slightly different to your own regex.

Script and results are shown below:

version 1.0; ns junos = "http://xml.juniper.net/junos/*/junos";ns xnm = "http://xml.juniper.net/xnm/1.1/xnm";ns jcs = "http://xml.juniper.net/junos/commit-scripts/1.0"; match / {    <op-script-results> {        <output> {            var $conn = jcs:open();            var $cmd = <command> "show system processes extensive";            var $out = jcs:execute($conn, $cmd);                var $lines = jcs:break-lines($out);            for-each ($lines) {                if (contains(., "rpd{rpd}")) {                    var $pattern = "[0-9]+[[.space.]]+root[[.space.]]+[0-9]+[[.space.]]+[0-9]+[[.space.]]+[0-9]+[MKG][[.space.]]+[0-9]+[MKG][[.space.]]+[[:alnum:]]+[[.space.]]+[0-9]+[[.space.]]+[0-9]+:[0-9]+[[.space.]]+([0-9]+\.[0-9]+%)[[.space.]]+rpd\\{rpd\\}";                    var $match = jcs:regex($pattern, .);                    var $cpu_usage = $match[2];                      if ($cpu_usage) {                        var $rpc = <request-snmp-utility-mib-set> {                            <object-type> "integer";                            <instance> "RPD_normalized_cpu";                            <object-value> $cpu_usage;                        };                        var $res = jcs:execute($conn, $rpc);                    }                }            }            expr jcs:close($conn);        }    }}

show snmp mib walk jnxUtil asciijnxUtilIntegerValue."RPD_normalized_cpu" = 0jnxUtilIntegerTime."RPD_normalized_cpu" = 07 e8 05 18  02 02 2c 00  2d 07 00op cpu_scriptshow snmp mib walk jnxUtil asciijnxUtilIntegerValue."RPD_normalized_cpu" = 0jnxUtilIntegerTime."RPD_normalized_cpu" = 07 e8 05 18  02 03 04 00  2d 07 00

As I mentioned the output for rpd was slightly different in my environment to your own regex, so you may need to tweak it a little further, the match that I was getting based on the string was as follows:

10957 root         20    0   962M   164M kqread   1 163:19   0.00% rpd{rpd}And the regex was returning0.00%

Regards,

------------------------------
Andy Sharp

Original Message:
Sent: 05-23-2024 10:37
From: VIGNESH KANNAN
Subject: Slax script for rpd

I created a script to retrieve the WCPU of RPD in OIDs, but it's not functioning as expected. Could someone assist me with this?

------------------------------
VIGNESH KANNAN
------------------------------

I didn't get any output from the OIDs. I copied and pasted the script but can't figure out what I did wrong.

set event-options generate-event collect_rpd_data_event time-interval 300
set event-options policy collect_rpd_data_policy events collect_rpd_data_event
set event-options policy collect_rpd_data_policy then event-script collect_rpd_cpu.slax
set event-options event-script file collect_rpd_cpu.slax

This is my output for show system process extensive command output

show system processes extensive | match rpd | except 0.00%
18892 root 37 0 1773M 896M CPU1 1 382:11 21.19% rpd{rpd}
18892 root 23 0 1773M 896M wait 4 108:57 4.98% rpd{TraceThread}
18892 root 20 0 1773M 896M kqread 1 13:20 0.88% rpd{rsvp-io}

My first guess would be that the following is required:

var $cpu_usage = $match[2];

Node sets start at 1, so jcs:regex() will return the entire string in node 1, and the matches in subsequent nodes. 

You will also need to double escape the last part of your regex.  Special characters need to be double escaped as SLAX to XSLT conversion will remove one.

rpd\\{rpd\\}

Finally, I think that \s doesn't work in SLAX, so change to [[.space.]] instead.

Last thing which was more of an observation than a particular issue, is that using jcs:invoke() is fine when just used once as it opens a connection, executes the RPC and then closes the connection.

However, if you are using it multiple times there is an overhead, as each time a connection is being opened and closed.  For just a few times this is fine, but I prefer to open the connection once using jcs:open(), then execute as many RPC as needed using jcs:execute(), and then finally close the connection, when it is no longer needed using jcs:close().

For scripts that perform a number of RPCs, especially when they're in a foreach loop, this can improve execution times significantly, as only a single connection is opened/closed rather than in each iteration.

I did run your script on a virtual device I had access to, and made a few changes, more to match the output that I was getting which was slightly different to your own regex.

Script and results are shown below:

version 1.0; ns junos = "http://xml.juniper.net/junos/*/junos";ns xnm = "http://xml.juniper.net/xnm/1.1/xnm";ns jcs = "http://xml.juniper.net/junos/commit-scripts/1.0"; match / {    <op-script-results> {        <output> {            var $conn = jcs:open();            var $cmd = <command> "show system processes extensive";            var $out = jcs:execute($conn, $cmd);                var $lines = jcs:break-lines($out);            for-each ($lines) {                if (contains(., "rpd{rpd}")) {                    var $pattern = "[0-9]+[[.space.]]+root[[.space.]]+[0-9]+[[.space.]]+[0-9]+[[.space.]]+[0-9]+[MKG][[.space.]]+[0-9]+[MKG][[.space.]]+[[:alnum:]]+[[.space.]]+[0-9]+[[.space.]]+[0-9]+:[0-9]+[[.space.]]+([0-9]+\.[0-9]+%)[[.space.]]+rpd\\{rpd\\}";                    var $match = jcs:regex($pattern, .);                    var $cpu_usage = $match[2];                      if ($cpu_usage) {                        var $rpc = <request-snmp-utility-mib-set> {                            <object-type> "integer";                            <instance> "RPD_normalized_cpu";                            <object-value> $cpu_usage;                        };                        var $res = jcs:execute($conn, $rpc);                    }                }            }            expr jcs:close($conn);        }    }}

show snmp mib walk jnxUtil asciijnxUtilIntegerValue."RPD_normalized_cpu" = 0jnxUtilIntegerTime."RPD_normalized_cpu" = 07 e8 05 18  02 02 2c 00  2d 07 00op cpu_scriptshow snmp mib walk jnxUtil asciijnxUtilIntegerValue."RPD_normalized_cpu" = 0jnxUtilIntegerTime."RPD_normalized_cpu" = 07 e8 05 18  02 03 04 00  2d 07 00

As I mentioned the output for rpd was slightly different in my environment to your own regex, so you may need to tweak it a little further, the match that I was getting based on the string was as follows:

10957 root         20    0   962M   164M kqread   1 163:19   0.00% rpd{rpd}And the regex was returning0.00%

Regards,

------------------------------
Andy Sharp

Original Message:
Sent: 05-23-2024 10:37
From: VIGNESH KANNAN
Subject: Slax script for rpd

I created a script to retrieve the WCPU of RPD in OIDs, but it's not functioning as expected. Could someone assist me with this?

------------------------------
VIGNESH KANNAN
------------------------------

I didn't get any output from the OIDs. I copied and pasted the script but can't figure out what I did wrong.

set event-options generate-event collect_rpd_data_event time-interval 300
set event-options policy collect_rpd_data_policy events collect_rpd_data_event
set event-options policy collect_rpd_data_policy then event-script collect_rpd_cpu.slax
set event-options event-script file collect_rpd_cpu.slax

This is my output for show system process extensive command output

show system processes extensive | match rpd | except 0.00%
18892 root 37 0 1773M 896M CPU1 1 382:11 21.19% rpd{rpd}
18892 root 23 0 1773M 896M wait 4 108:57 4.98% rpd{TraceThread}
18892 root 20 0 1773M 896M kqread 1 13:20 0.88% rpd{rsvp-io}

------------------------------
VIGNESH KANNAN

Original Message:
Sent: 05-24-2024 04:52
From: asharp
Subject: Slax script for rpd

My first guess would be that the following is required:

var $cpu_usage = $match[2];

Node sets start at 1, so jcs:regex() will return the entire string in node 1, and the matches in subsequent nodes. 

You will also need to double escape the last part of your regex.  Special characters need to be double escaped as SLAX to XSLT conversion will remove one.

rpd\\{rpd\\}

Finally, I think that \s doesn't work in SLAX, so change to [[.space.]] instead.

Last thing which was more of an observation than a particular issue, is that using jcs:invoke() is fine when just used once as it opens a connection, executes the RPC and then closes the connection.

However, if you are using it multiple times there is an overhead, as each time a connection is being opened and closed.  For just a few times this is fine, but I prefer to open the connection once using jcs:open(), then execute as many RPC as needed using jcs:execute(), and then finally close the connection, when it is no longer needed using jcs:close().

For scripts that perform a number of RPCs, especially when they're in a foreach loop, this can improve execution times significantly, as only a single connection is opened/closed rather than in each iteration.

I did run your script on a virtual device I had access to, and made a few changes, more to match the output that I was getting which was slightly different to your own regex.

Script and results are shown below:

version 1.0; ns junos = "http://xml.juniper.net/junos/*/junos";ns xnm = "http://xml.juniper.net/xnm/1.1/xnm";ns jcs = "http://xml.juniper.net/junos/commit-scripts/1.0"; match / {    <op-script-results> {        <output> {            var $conn = jcs:open();            var $cmd = <command> "show system processes extensive";            var $out = jcs:execute($conn, $cmd);                var $lines = jcs:break-lines($out);            for-each ($lines) {                if (contains(., "rpd{rpd}")) {                    var $pattern = "[0-9]+[[.space.]]+root[[.space.]]+[0-9]+[[.space.]]+[0-9]+[[.space.]]+[0-9]+[MKG][[.space.]]+[0-9]+[MKG][[.space.]]+[[:alnum:]]+[[.space.]]+[0-9]+[[.space.]]+[0-9]+:[0-9]+[[.space.]]+([0-9]+\.[0-9]+%)[[.space.]]+rpd\\{rpd\\}";                    var $match = jcs:regex($pattern, .);                    var $cpu_usage = $match[2];                      if ($cpu_usage) {                        var $rpc = <request-snmp-utility-mib-set> {                            <object-type> "integer";                            <instance> "RPD_normalized_cpu";                            <object-value> $cpu_usage;                        };                        var $res = jcs:execute($conn, $rpc);                    }                }            }            expr jcs:close($conn);        }    }}

show snmp mib walk jnxUtil asciijnxUtilIntegerValue."RPD_normalized_cpu" = 0jnxUtilIntegerTime."RPD_normalized_cpu" = 07 e8 05 18  02 02 2c 00  2d 07 00op cpu_scriptshow snmp mib walk jnxUtil asciijnxUtilIntegerValue."RPD_normalized_cpu" = 0jnxUtilIntegerTime."RPD_normalized_cpu" = 07 e8 05 18  02 03 04 00  2d 07 00

As I mentioned the output for rpd was slightly different in my environment to your own regex, so you may need to tweak it a little further, the match that I was getting based on the string was as follows:

10957 root         20    0   962M   164M kqread   1 163:19   0.00% rpd{rpd}And the regex was returning0.00%

Regards,

------------------------------
Andy Sharp

Original Message:
Sent: 05-23-2024 10:37
From: VIGNESH KANNAN
Subject: Slax script for rpd

I created a script to retrieve the WCPU of RPD in OIDs, but it's not functioning as expected. Could someone assist me with this?

------------------------------
VIGNESH KANNAN
------------------------------

I didn't get any output from the OIDs. I copied and pasted the script but can't figure out what I did wrong.

set event-options generate-event collect_rpd_data_event time-interval 300
set event-options policy collect_rpd_data_policy events collect_rpd_data_event
set event-options policy collect_rpd_data_policy then event-script collect_rpd_cpu.slax
set event-options event-script file collect_rpd_cpu.slax

This is my output for show system process extensive command output

show system processes extensive | match rpd | except 0.00%
18892 root 37 0 1773M 896M CPU1 1 382:11 21.19% rpd{rpd}
18892 root 23 0 1773M 896M wait 4 108:57 4.98% rpd{TraceThread}
18892 root 20 0 1773M 896M kqread 1 13:20 0.88% rpd{rsvp-io}

------------------------------
VIGNESH KANNAN

Original Message:
Sent: 05-24-2024 04:52
From: asharp
Subject: Slax script for rpd

My first guess would be that the following is required:

var $cpu_usage = $match[2];

Node sets start at 1, so jcs:regex() will return the entire string in node 1, and the matches in subsequent nodes. 

You will also need to double escape the last part of your regex.  Special characters need to be double escaped as SLAX to XSLT conversion will remove one.

rpd\\{rpd\\}

Finally, I think that \s doesn't work in SLAX, so change to [[.space.]] instead.

Last thing which was more of an observation than a particular issue, is that using jcs:invoke() is fine when just used once as it opens a connection, executes the RPC and then closes the connection.

However, if you are using it multiple times there is an overhead, as each time a connection is being opened and closed.  For just a few times this is fine, but I prefer to open the connection once using jcs:open(), then execute as many RPC as needed using jcs:execute(), and then finally close the connection, when it is no longer needed using jcs:close().

For scripts that perform a number of RPCs, especially when they're in a foreach loop, this can improve execution times significantly, as only a single connection is opened/closed rather than in each iteration.

I did run your script on a virtual device I had access to, and made a few changes, more to match the output that I was getting which was slightly different to your own regex.

Script and results are shown below:

version 1.0; ns junos = "http://xml.juniper.net/junos/*/junos";ns xnm = "http://xml.juniper.net/xnm/1.1/xnm";ns jcs = "http://xml.juniper.net/junos/commit-scripts/1.0"; match / {    <op-script-results> {        <output> {            var $conn = jcs:open();            var $cmd = <command> "show system processes extensive";            var $out = jcs:execute($conn, $cmd);                var $lines = jcs:break-lines($out);            for-each ($lines) {                if (contains(., "rpd{rpd}")) {                    var $pattern = "[0-9]+[[.space.]]+root[[.space.]]+[0-9]+[[.space.]]+[0-9]+[[.space.]]+[0-9]+[MKG][[.space.]]+[0-9]+[MKG][[.space.]]+[[:alnum:]]+[[.space.]]+[0-9]+[[.space.]]+[0-9]+:[0-9]+[[.space.]]+([0-9]+\.[0-9]+%)[[.space.]]+rpd\\{rpd\\}";                    var $match = jcs:regex($pattern, .);                    var $cpu_usage = $match[2];                      if ($cpu_usage) {                        var $rpc = <request-snmp-utility-mib-set> {                            <object-type> "integer";                            <instance> "RPD_normalized_cpu";                            <object-value> $cpu_usage;                        };                        var $res = jcs:execute($conn, $rpc);                    }                }            }            expr jcs:close($conn);        }    }}

show snmp mib walk jnxUtil asciijnxUtilIntegerValue."RPD_normalized_cpu" = 0jnxUtilIntegerTime."RPD_normalized_cpu" = 07 e8 05 18  02 02 2c 00  2d 07 00op cpu_scriptshow snmp mib walk jnxUtil asciijnxUtilIntegerValue."RPD_normalized_cpu" = 0jnxUtilIntegerTime."RPD_normalized_cpu" = 07 e8 05 18  02 03 04 00  2d 07 00

As I mentioned the output for rpd was slightly different in my environment to your own regex, so you may need to tweak it a little further, the match that I was getting based on the string was as follows:

10957 root         20    0   962M   164M kqread   1 163:19   0.00% rpd{rpd}And the regex was returning0.00%

Regards,

------------------------------
Andy Sharp

Original Message:
Sent: 05-23-2024 10:37
From: VIGNESH KANNAN
Subject: Slax script for rpd

I created a script to retrieve the WCPU of RPD in OIDs, but it's not functioning as expected. Could someone assist me with this?

------------------------------
VIGNESH KANNAN
------------------------------