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RPC send operation failed; errno = Broken pipe

Posted by ruhailmushtaqvakil 
RPC send operation failed; errno = Broken pipe
May 26, 2012 11:41AM
HI,

My Networker Server is Solaris and my client is linux.

I am trying to run a backup on this client however it fails everytime.

The backup starts nice, and backs up some 110 GB data and then says lost connection to server.
it just retries and then fails, tried running manual, same result.
I m getting connection lost message evry now and then. the total data on system is 275 gb, one saveset only, backup speed is good throughout. almost 25-50 MBps

RPC send operation failed; errno = Broken pipe

this is another error i got from daemon.og

Any help is appreciated.
RPC send operation failed; errno = Broken pipe
May 26, 2012 06:35PM
Check logs on the client for hardware issues (dmesg,
/var/log/messages, /nsr/logs/*). Then, if all seems well, run a tar on
the file system in question and make sure it is able to walk the entire
file system.

tar cvf - / | cat > /dev/null

Another issue might be a firewall between the client and server with
a connection table time out too short for your session. The solution is
to increase the timeout (if possible) or enable TCP keep alive on your
server. This is my setup:

# more /etc/rc2.d/S93nettwicks
#!/bin/sh

# Helps to solve RPC errors under heavy load.

/usr/sbin/ndd -set /dev/tcp tcp_conn_req_max_q 1024
/usr/sbin/ndd -set /dev/tcp tcp_conn_req_max_q0 4096

# Should help with backups thru firewall

/usr/sbin/ndd -set /dev/tcp tcp_keepalive_interval 600000

On 05/26/2012 09:41 PM, ruhailmushtaqvakil wrote:
[quote]HI,

My Networker Server is Solaris and my client is linux.

I am trying to run a backup on this client however it fails everytime.

The backup starts nice, and backs up some 110 GB data and then says lost connection to server.
it just retries and then fails, tried running manual, same result.
I m getting connection lost message evry now and then. the total data on system is 275 gb, one saveset only, backup speed is good throughout. almost 25-50 MBps

RPC send operation failed; errno = Broken pipe

this is another error i got from daemon.og

Any help is appreciated.

+----------------------------------------------------------------------
|This was sent by mytechnicalknowledgebase < at > gmail.com via Backup Central.
|Forward SPAM to abuse < at > backupcentral.com.
+----------------------------------------------------------------------
[/quote]

--

-- Yaron.
RPC send operation failed; errno = Broken pipe
May 26, 2012 06:42PM
Check logs on the client for hardware issues (dmesg,
/var/log/messages, /nsr/logs/*). Then, if all seems well, run a tar on
the file system in question and make sure it is able to walk the entire
file system.

tar cvf - / | cat > /dev/null

Another issue might be a firewall between the client and server with
a connection table time out too short for your session. The solution is
to increase the timeout (if possible) or enable TCP keep alive on your
server. This is my setup:

# more /etc/rc2.d/S93nettwicks
#!/bin/sh

# Helps to solve RPC errors under heavy load.

/usr/sbin/ndd -set /dev/tcp tcp_conn_req_max_q 1024
/usr/sbin/ndd -set /dev/tcp tcp_conn_req_max_q0 4096

# Should help with backups thru firewall

/usr/sbin/ndd -set /dev/tcp tcp_keepalive_interval 600000

On 05/26/2012 09:41 PM, ruhailmushtaqvakil wrote:
[quote]HI,

My Networker Server is Solaris and my client is linux.

I am trying to run a backup on this client however it fails everytime.

The backup starts nice, and backs up some 110 GB data and then says lost connection to server.
it just retries and then fails, tried running manual, same result.
I m getting connection lost message evry now and then. the total data on system is 275 gb, one saveset only, backup speed is good throughout. almost 25-50 MBps

RPC send operation failed; errno = Broken pipe

this is another error i got from daemon.og

Any help is appreciated.

+----------------------------------------------------------------------
|This was sent by mytechnicalknowledgebase < at > gmail.com via Backup Central.
|Forward SPAM to abuse < at > backupcentral.com.
+----------------------------------------------------------------------
[/quote]

--

-- Yaron.
RPC send operation failed; errno = Broken pipe
May 27, 2012 01:06AM
This is the key point: "I m getting connection lost message evry now and then."

Such problems are network/name resolution related.
RPC send operation failed; errno = Broken pipe
May 27, 2012 09:36AM
A name resolution problem will not show itself after saving 100G of
data. It is also less likely for a network problem (such as duplex
mismatch or a faulty cable) to just happen, after running for some 30
minutes at good rates. Such problems tend to be more persistent and not
just come and go. But then again, this cannot be ruled out, it is just
less likely.

On 05/27/2012 11:06 AM, bingo wrote:
[quote]This is the key point: "I m getting connection lost message evry now and then."

Such problems are network/name resolution related.

+----------------------------------------------------------------------
|This was sent by carsten_reinfeld < at > avus-cr.de via Backup Central.
|Forward SPAM to abuse < at > backupcentral.com.
+----------------------------------------------------------------------
[/quote]

--

-- Yaron.
RPC send operation failed; errno = Broken pipe
May 27, 2012 09:40AM
A name resolution problem will not show itself after saving 100G of
data. It is also less likely for a network problem (such as duplex
mismatch or a faulty cable) to just happen, after running for some 30
minutes at good rates. Such problems tend to be more persistent and not
just come and go. But then again, this cannot be ruled out, it is just
less likely.

On 05/27/2012 11:06 AM, bingo wrote:
[quote]This is the key point: "I m getting connection lost message evry now and then."

Such problems are network/name resolution related.

+----------------------------------------------------------------------
|This was sent by carsten_reinfeld < at > avus-cr.de via Backup Central.
|Forward SPAM to abuse < at > backupcentral.com.
+----------------------------------------------------------------------
[/quote]

--

-- Yaron.
RPC send operation failed; errno = Broken pipe
May 27, 2012 10:18AM
I agree that the keep alive time setting should be added. Try that and restart. I can't remember if a reboot is required for the os settings to take effect.
Hope it works for you.
--
Sent from my Android phone with K-9 Mail. Please excuse my brevity.

_____________________________________________
From: Yaron Zabary <yaron < at > ARISTO.TAU.AC.IL>
Sent: Sun May 27 02:35:54 GMT+01:00 2012
To: NETWORKER < at > LISTSERV.TEMPLE.EDU
Subject: Re: [Networker] RPC send operation failed; errno = Broken pipe

Check logs on the client for hardware issues (dmesg,
/var/log/messages, /nsr/logs/*). Then, if all seems well, run a tar on
the file system in question and make sure it is able to walk the entire
file system.

tar cvf - / | cat > /dev/null

Another issue might be a firewall between the client and server with
a connection table time out too short for your session. The solution is
to increase the timeout (if possible) or enable TCP keep alive on your
server. This is my setup:

# more /etc/rc2.d/S93nettwicks
#!/bin/sh

# Helps to solve RPC errors under heavy load.

/usr/sbin/ndd -set /dev/tcp tcp_conn_req_max_q 1024
/usr/sbin/ndd -set /dev/tcp tcp_conn_req_max_q0 4096

# Should help with backups thru firewall

/usr/sbin/ndd -set /dev/tcp tcp_keepalive_interval 600000

On 05/26/2012 09:41 PM, ruhailmushtaqvakil wrote:
[quote]HI,

My Networker Server is Solaris and my client is linux.

I am trying to run a backup on this client however it fails everytime.

The backup starts nice, and backs up some 110 GB data and then says lost connection to server.
it just retries and then fails, tried running manual, same result.
I m getting connection lost message evry now and then. the total data on system is 275 gb, one saveset only, backup speed is good throughout. almost 25-50 MBps

RPC send operation failed; errno = Broken pipe

this is another error i got from daemon.og

Any help is appreciated.

+_____________________________________________
[/quote]
[quote]|This was sent by mytechnicalknowledgebase < at > gmail.com via Backup Central.
|Forward SPAM to abuse < at > backupcentral.com.
+_____________________________________________
[/quote]

--

-- Yaron.
RPC send operation failed; errno = Broken pipe
May 29, 2012 07:15AM
I've run into issues like this before with a few clients and it has always been either keep alive settings or the group's inactivity timeout.

-----Original Message-----
From: EMC NetWorker discussion [mailto] On Behalf Of Andy Fahy
Sent: Sunday, May 27, 2012 12:15 PM
To: NETWORKER < at > LISTSERV.TEMPLE.EDU
Subject: Re: [Networker] RPC send operation failed; errno = Broken pipe

I agree that the keep alive time setting should be added. Try that and restart. I can't remember if a reboot is required for the os settings to take effect.
Hope it works for you.
--
Sent from my Android phone with K-9 Mail. Please excuse my brevity.

_____________________________________________
From: Yaron Zabary <yaron < at > ARISTO.TAU.AC.IL>
Sent: Sun May 27 02:35:54 GMT+01:00 2012
To: NETWORKER < at > LISTSERV.TEMPLE.EDU
Subject: Re: [Networker] RPC send operation failed; errno = Broken pipe

Check logs on the client for hardware issues (dmesg, /var/log/messages, /nsr/logs/*). Then, if all seems well, run a tar on the file system in question and make sure it is able to walk the entire file system.

tar cvf - / | cat > /dev/null

Another issue might be a firewall between the client and server with a connection table time out too short for your session. The solution is to increase the timeout (if possible) or enable TCP keep alive on your server. This is my setup:

# more /etc/rc2.d/S93nettwicks
#!/bin/sh

# Helps to solve RPC errors under heavy load.

/usr/sbin/ndd -set /dev/tcp tcp_conn_req_max_q 1024 /usr/sbin/ndd -set /dev/tcp tcp_conn_req_max_q0 4096

# Should help with backups thru firewall

/usr/sbin/ndd -set /dev/tcp tcp_keepalive_interval 600000

On 05/26/2012 09:41 PM, ruhailmushtaqvakil wrote:
[quote]HI,

My Networker Server is Solaris and my client is linux.

I am trying to run a backup on this client however it fails everytime.

The backup starts nice, and backs up some 110 GB data and then says lost connection to server.
it just retries and then fails, tried running manual, same result.
I m getting connection lost message evry now and then. the total data
on system is 275 gb, one saveset only, backup speed is good
throughout. almost 25-50 MBps

RPC send operation failed; errno = Broken pipe

this is another error i got from daemon.og

Any help is appreciated.

+_____________________________________________
[/quote]
[quote]|This was sent by mytechnicalknowledgebase < at > gmail.com via Backup Central.
|Forward SPAM to abuse < at > backupcentral.com.
+_____________________________________________
[/quote]

--

-- Yaron.
RPC send operation failed; errno = Broken pipe
May 30, 2012 02:31PM
We ran into this recently with a newly implemented load balancer. A time out setting was disconnecting after a certain period of time. The time was long enough for incrementals and some files systems to complete. It was not long enough for the larger savesets to complete so we only noticed this on full backups.

Check and see if the runtimes on your saves are always terminating at after the same amount of time.

-----Original Message-----
From: EMC NetWorker discussion [mailto] On Behalf Of Andy Fahy
Sent: Sunday, May 27, 2012 10:15 AM
To: NETWORKER < at > LISTSERV.TEMPLE.EDU
Subject: Re: [Networker] RPC send operation failed; errno = Broken pipe

I agree that the keep alive time setting should be added. Try that and restart. I can't remember if a reboot is required for the os settings to take effect.
Hope it works for you.
--
Sent from my Android phone with K-9 Mail. Please excuse my brevity.

_____________________________________________
From: Yaron Zabary <yaron < at > ARISTO.TAU.AC.IL>
Sent: Sun May 27 02:35:54 GMT+01:00 2012
To: NETWORKER < at > LISTSERV.TEMPLE.EDU
Subject: Re: [Networker] RPC send operation failed; errno = Broken pipe

Check logs on the client for hardware issues (dmesg, /var/log/messages, /nsr/logs/*). Then, if all seems well, run a tar on the file system in question and make sure it is able to walk the entire file system.

tar cvf - / | cat > /dev/null

Another issue might be a firewall between the client and server with a connection table time out too short for your session. The solution is to increase the timeout (if possible) or enable TCP keep alive on your server. This is my setup:

# more /etc/rc2.d/S93nettwicks
#!/bin/sh

# Helps to solve RPC errors under heavy load.

/usr/sbin/ndd -set /dev/tcp tcp_conn_req_max_q 1024 /usr/sbin/ndd -set /dev/tcp tcp_conn_req_max_q0 4096

# Should help with backups thru firewall

/usr/sbin/ndd -set /dev/tcp tcp_keepalive_interval 600000

On 05/26/2012 09:41 PM, ruhailmushtaqvakil wrote:
[quote]HI,

My Networker Server is Solaris and my client is linux.

I am trying to run a backup on this client however it fails everytime.

The backup starts nice, and backs up some 110 GB data and then says lost connection to server.
it just retries and then fails, tried running manual, same result.
I m getting connection lost message evry now and then. the total data
on system is 275 gb, one saveset only, backup speed is good
throughout. almost 25-50 MBps

RPC send operation failed; errno = Broken pipe

this is another error i got from daemon.og

Any help is appreciated.

+_____________________________________________
[/quote]
[quote]|This was sent by mytechnicalknowledgebase < at > gmail.com via Backup Central.
|Forward SPAM to abuse < at > backupcentral.com.
+_____________________________________________
[/quote]

--

-- Yaron.
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