I'm assuming based on the "SSL error" that you have ssl set to 'on'. What's your ssl_renegotiation_limit? The default is 512MB, but setting it to 0 has solved problems for a number of people on this list, including myself.
Sherrylyn
On Thu, Sep 24, 2015 at 3:57 PM, Francisco Reyes <lists@natserv.net> wrote:
Have an existing setup of 9.3 servers. Replication has been rock solid, but recently the circuits between data centers were upgraded and pg_basebackup now seems to fail often when setting up streaming replication. What used to take 10+ hours now only took 68 minutes, but had to do many retries. Many attempts fail within minutes while others go to 90% or higher and then drop. The reason we are doing a sync is because we have to swap data centers every so often for compliance. So I had to swap master and slave.
Calling pg_basebackup like this: pg_basebackup -P -R -X s -h <HostName> -D <Folder> -U replicator
The error we keep having is: Sep 23 13:36:32 <HostName> postgres[16804]: [11-1] 2015-09-23 13:36:32 EDT <IP> [unknown] replicator LOG: SSL error: bad write retry Sep 23 13:36:32 <HostName> postgres[16804]: [12-1] 2015-09-23 13:36:32 EDT <IP> [unknown] replicator LOG: SSL error: bad write retry Sep 23 13:36:32 <HostName> postgres[16804]: [13-1] 2015-09-23 13:36:32 EDT <IP> [unknown] replicator FATAL: connection to client lost Sep 23 13:36:32 <HostName> postgres[16972]: [9-1] 2015-09-23 13:36:32 EDT <IP> [unknown] replicator LOG: could not receive data from client: Connection reset by peer
I have been working with the network team and we have even been actively monitoring the line, and running ping, as the replication is setup. At the point the connection reset by peer error happens, we don't see any issue with the network and ping doesn't show an issue at that point in time.
The issue also happened on another set of machines and likewise, had to retry many times before pg_basebackup would do the initial sync. Once the initial sync is set, replication is fine.
I tried both "-X s" (stream) and "-X f" (fetch) and both fail often.
