Add postgres pitr support with physical backup (#36)

Signed-off-by: souravbiswassanto <saurov@appscode.com>
kubedb · Sep 25, 2024 · 3261c18 · 3261c18
1 parent 066e7b5
commit 3261c18
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Showing 37 changed files with 96 additions and 66 deletions.
diff --git a/role_scripts/10/primary/start.sh b/role_scripts/10/primary/start.sh
@@ -24,7 +24,7 @@ echo "max_wal_senders = 90" >>/tmp/postgresql.conf # default is 10.  value must
 if [ ! -z "${WAL_RETAIN_PARAM:-}" ] && [ ! -z "${WAL_RETAIN_AMOUNT:-}" ]; then
     echo "${WAL_RETAIN_PARAM}=${WAL_RETAIN_AMOUNT}" >>/tmp/postgresql.conf
 else
-  echo "wal_keep_segments = 64" >>/tmp/postgresql.conf
+  echo "wal_keep_segments = 160" >>/tmp/postgresql.conf
 fi
 echo "max_replication_slots = 90" >>/tmp/postgresql.conf
 echo "wal_log_hints = on" >>/tmp/postgresql.conf

diff --git a/role_scripts/10/standby/ha_backup_job.sh b/role_scripts/10/standby/ha_backup_job.sh
@@ -81,7 +81,7 @@ echo "max_wal_senders = 90" >>/tmp/postgresql.conf # default is 10.  value must
 if [ ! -z "${WAL_RETAIN_PARAM:-}" ] && [ ! -z "${WAL_RETAIN_AMOUNT:-}" ]; then
     echo "${WAL_RETAIN_PARAM}=${WAL_RETAIN_AMOUNT}" >>/tmp/postgresql.conf
 else
-  echo "wal_keep_segments = 64" >>/tmp/postgresql.conf
+  echo "wal_keep_segments = 160" >>/tmp/postgresql.conf
 fi
 
 echo "shared_preload_libraries = 'pg_stat_statements'" >>/tmp/postgresql.conf

diff --git a/role_scripts/10/standby/run.sh b/role_scripts/10/standby/run.sh
@@ -119,7 +119,7 @@ echo "max_wal_senders = 90" >>/tmp/postgresql.conf # default is 10.  value must
 if [ ! -z "${WAL_RETAIN_PARAM:-}" ] && [ ! -z "${WAL_RETAIN_AMOUNT:-}" ]; then
     echo "${WAL_RETAIN_PARAM}=${WAL_RETAIN_AMOUNT}" >>/tmp/postgresql.conf
 else
-  echo "wal_keep_segments = 64" >>/tmp/postgresql.conf
+  echo "wal_keep_segments = 160" >>/tmp/postgresql.conf
 fi
 
 echo "wal_log_hints = on" >>/tmp/postgresql.conf

diff --git a/role_scripts/10/standby/warm_stanby.sh b/role_scripts/10/standby/warm_stanby.sh
@@ -26,7 +26,7 @@ echo "max_wal_senders = 90" >>/tmp/postgresql.conf # default is 10.  value must
 if [ ! -z "${WAL_RETAIN_PARAM:-}" ] && [ ! -z "${WAL_RETAIN_AMOUNT:-}" ]; then
     echo "${WAL_RETAIN_PARAM}=${WAL_RETAIN_AMOUNT}" >>/tmp/postgresql.conf
 else
-  echo "wal_keep_segments = 64" >>/tmp/postgresql.conf
+  echo "wal_keep_segments = 160" >>/tmp/postgresql.conf
 fi
 echo "max_replication_slots = 90" >>/tmp/postgresql.conf
 echo "wal_log_hints = on" >>/tmp/postgresql.conf

diff --git a/role_scripts/11/primary/start.sh b/role_scripts/11/primary/start.sh
@@ -24,7 +24,7 @@ echo "max_wal_senders = 90" >>/tmp/postgresql.conf # default is 10.  value must
 if [ ! -z "${WAL_RETAIN_PARAM:-}" ] && [ ! -z "${WAL_RETAIN_AMOUNT:-}" ]; then
     echo "${WAL_RETAIN_PARAM}=${WAL_RETAIN_AMOUNT}" >>/tmp/postgresql.conf
 else
-  echo "wal_keep_segments = 64" >>/tmp/postgresql.conf
+  echo "wal_keep_segments = 160" >>/tmp/postgresql.conf
 fi
 echo "max_replication_slots = 90" >>/tmp/postgresql.conf
 echo "wal_log_hints = on" >>/tmp/postgresql.conf

diff --git a/role_scripts/11/standby/ha_backup_job.sh b/role_scripts/11/standby/ha_backup_job.sh
@@ -81,7 +81,7 @@ echo "max_wal_senders = 90" >>/tmp/postgresql.conf # default is 10.  value must
 if [ ! -z "${WAL_RETAIN_PARAM:-}" ] && [ ! -z "${WAL_RETAIN_AMOUNT:-}" ]; then
     echo "${WAL_RETAIN_PARAM}=${WAL_RETAIN_AMOUNT}" >>/tmp/postgresql.conf
 else
-  echo "wal_keep_segments = 64" >>/tmp/postgresql.conf
+  echo "wal_keep_segments = 160" >>/tmp/postgresql.conf
 fi
 echo "max_replication_slots = 90" >>/tmp/postgresql.conf
 echo "wal_log_hints = on" >>/tmp/postgresql.conf

diff --git a/role_scripts/11/standby/run.sh b/role_scripts/11/standby/run.sh
@@ -118,7 +118,7 @@ echo "max_wal_senders = 90" >>/tmp/postgresql.conf # default is 10.  value must
 if [ ! -z "${WAL_RETAIN_PARAM:-}" ] && [ ! -z "${WAL_RETAIN_AMOUNT:-}" ]; then
     echo "${WAL_RETAIN_PARAM}=${WAL_RETAIN_AMOUNT}" >>/tmp/postgresql.conf
 else
-  echo "wal_keep_segments = 64" >>/tmp/postgresql.conf
+  echo "wal_keep_segments = 160" >>/tmp/postgresql.conf
 fi
 echo "max_replication_slots = 90" >>/tmp/postgresql.conf
 echo "wal_log_hints = on" >>/tmp/postgresql.conf

diff --git a/role_scripts/11/standby/warm_stanby.sh b/role_scripts/11/standby/warm_stanby.sh
@@ -26,7 +26,7 @@ echo "max_wal_senders = 90" >>/tmp/postgresql.conf # default is 10.  value must
 if [ ! -z "${WAL_RETAIN_PARAM:-}" ] && [ ! -z "${WAL_RETAIN_AMOUNT:-}" ]; then
     echo "${WAL_RETAIN_PARAM}=${WAL_RETAIN_AMOUNT}" >>/tmp/postgresql.conf
 else
-  echo "wal_keep_segments = 64" >>/tmp/postgresql.conf
+  echo "wal_keep_segments = 160" >>/tmp/postgresql.conf
 fi
 echo "max_replication_slots = 90" >>/tmp/postgresql.conf
 echo "wal_log_hints = on" >>/tmp/postgresql.conf

diff --git a/role_scripts/12/primary/start.sh b/role_scripts/12/primary/start.sh
@@ -24,7 +24,7 @@ echo "max_wal_senders = 90" >>/tmp/postgresql.conf # default is 10.  value must
 if [ ! -z "${WAL_RETAIN_PARAM:-}" ] && [ ! -z "${WAL_RETAIN_AMOUNT:-}" ]; then
     echo "${WAL_RETAIN_PARAM}=${WAL_RETAIN_AMOUNT}" >>/tmp/postgresql.conf
 else
-  echo "wal_keep_segments = 64" >>/tmp/postgresql.conf
+  echo "wal_keep_segments = 160" >>/tmp/postgresql.conf
 fi
 echo "max_replication_slots = 90" >>/tmp/postgresql.conf
 echo "wal_log_hints = on" >>/tmp/postgresql.conf

diff --git a/role_scripts/12/standby/ha_backup_job.sh b/role_scripts/12/standby/ha_backup_job.sh
@@ -76,7 +76,7 @@ echo "max_wal_senders = 90" >>/tmp/postgresql.conf # default is 10.  value must
 if [ ! -z "${WAL_RETAIN_PARAM:-}" ] && [ ! -z "${WAL_RETAIN_AMOUNT:-}" ]; then
     echo "${WAL_RETAIN_PARAM}=${WAL_RETAIN_AMOUNT}" >>/tmp/postgresql.conf
 else
-  echo "wal_keep_segments = 64" >>/tmp/postgresql.conf
+  echo "wal_keep_segments = 160" >>/tmp/postgresql.conf
 fi
 
 if [[ "$WAL_LIMIT_POLICY" == "ReplicationSlot" ]]; then

diff --git a/role_scripts/12/standby/run.sh b/role_scripts/12/standby/run.sh
@@ -114,7 +114,7 @@ echo "max_wal_senders = 90" >>/tmp/postgresql.conf # default is 10.  value must
 if [ ! -z "${WAL_RETAIN_PARAM:-}" ] && [ ! -z "${WAL_RETAIN_AMOUNT:-}" ]; then
     echo "${WAL_RETAIN_PARAM}=${WAL_RETAIN_AMOUNT}" >>/tmp/postgresql.conf
 else
-  echo "wal_keep_segments = 64" >>/tmp/postgresql.conf
+  echo "wal_keep_segments = 160" >>/tmp/postgresql.conf
 fi
 echo "max_replication_slots = 90" >>/tmp/postgresql.conf
 if [[ "$WAL_LIMIT_POLICY" == "ReplicationSlot" ]]; then

diff --git a/role_scripts/12/standby/warm_stanby.sh b/role_scripts/12/standby/warm_stanby.sh
@@ -24,7 +24,7 @@ echo "max_wal_senders = 90" >>/tmp/postgresql.conf # default is 10.  value must
 if [ ! -z "${WAL_RETAIN_PARAM:-}" ] && [ ! -z "${WAL_RETAIN_AMOUNT:-}" ]; then
     echo "${WAL_RETAIN_PARAM}=${WAL_RETAIN_AMOUNT}" >>/tmp/postgresql.conf
 else
-  echo "wal_keep_segments = 64" >>/tmp/postgresql.conf
+  echo "wal_keep_segments = 160" >>/tmp/postgresql.conf
 fi
 if [[ "$WAL_LIMIT_POLICY" == "ReplicationSlot" ]]; then
   CLEAN_HOSTNAME="${HOSTNAME//[^[:alnum:]]/}"

diff --git a/role_scripts/13/primary/start.sh b/role_scripts/13/primary/start.sh
@@ -20,11 +20,11 @@ echo "wal_level = replica" >>/tmp/postgresql.conf
 echo "shared_buffers = $SHARED_BUFFERS" >>/tmp/postgresql.conf
 echo "max_wal_senders = 90" >>/tmp/postgresql.conf # default is 10.  value must be less than max_connections minus superuser_reserved_connections. ref: https://www.postgresql.org/docs/11/runtime-config-replication.html#GUC-MAX-WAL-SENDERS
 
-# echo "wal_keep_size = 1024" >>/tmp/postgresql.conf
+# echo "wal_keep_size = 2560" >>/tmp/postgresql.conf
 if [ ! -z "${WAL_RETAIN_PARAM:-}" ] && [ ! -z "${WAL_RETAIN_AMOUNT:-}" ]; then
     echo "${WAL_RETAIN_PARAM}=${WAL_RETAIN_AMOUNT}" >>/tmp/postgresql.conf
 else
-  echo "wal_keep_size = 1024" >>/tmp/postgresql.conf
+  echo "wal_keep_size = 2560" >>/tmp/postgresql.conf
 fi
 echo "max_replication_slots = 90" >>/tmp/postgresql.conf
 echo "wal_log_hints = on" >>/tmp/postgresql.conf

diff --git a/role_scripts/13/standby/ha_backup_job.sh b/role_scripts/13/standby/ha_backup_job.sh
@@ -72,11 +72,11 @@ echo "wal_level = replica" >>/tmp/postgresql.conf
 echo "shared_buffers = $SHARED_BUFFERS" >>/tmp/postgresql.conf
 echo "max_wal_senders = 90" >>/tmp/postgresql.conf # default is 10.  value must be less than max_connections minus superuser_reserved_connections. ref: https://www.postgresql.org/docs/11/runtime-config-replication.html#GUC-MAX-WAL-SENDERS
 
-# echo "wal_keep_size = 1024" >>/tmp/postgresql.conf #it was  "wal_keep_segments" in earlier version. changed in version 13
+# echo "wal_keep_size = 2560" >>/tmp/postgresql.conf #it was  "wal_keep_segments" in earlier version. changed in version 13
 if [ ! -z "${WAL_RETAIN_PARAM:-}" ] && [ ! -z "${WAL_RETAIN_AMOUNT:-}" ]; then
     echo "${WAL_RETAIN_PARAM}=${WAL_RETAIN_AMOUNT}" >>/tmp/postgresql.conf
 else
-  echo "wal_keep_size = 1024" >>/tmp/postgresql.conf
+  echo "wal_keep_size = 2560" >>/tmp/postgresql.conf
 fi
 if [[ "$WAL_LIMIT_POLICY" == "ReplicationSlot" ]]; then
   CLEAN_HOSTNAME="${HOSTNAME//[^[:alnum:]]/}"

diff --git a/role_scripts/13/standby/remote-replica.sh b/role_scripts/13/standby/remote-replica.sh
@@ -67,7 +67,7 @@ echo "max_wal_senders = 90" >>/tmp/postgresql.conf # default is 10.  value must
 if [ ! -z "${WAL_RETAIN_PARAM:-}" ] && [ ! -z "${WAL_RETAIN_AMOUNT:-}" ]; then
     echo "${WAL_RETAIN_PARAM}=${WAL_RETAIN_AMOUNT}" >>/tmp/postgresql.conf
 else
-  echo "wal_keep_size = 1024" >>/tmp/postgresql.conf
+  echo "wal_keep_size = 2560" >>/tmp/postgresql.conf
 fi
 if [[ "$WAL_LIMIT_POLICY" == "ReplicationSlot" ]]; then
   CLEAN_HOSTNAME="${HOSTNAME//[^[:alnum:]]/}"

diff --git a/role_scripts/13/standby/run.sh b/role_scripts/13/standby/run.sh
@@ -110,11 +110,11 @@ echo "wal_level = replica" >>/tmp/postgresql.conf
 echo "shared_buffers = $SHARED_BUFFERS" >>/tmp/postgresql.conf
 echo "max_wal_senders = 90" >>/tmp/postgresql.conf # default is 10.  value must be less than max_connections minus superuser_reserved_connections. ref: https://www.postgresql.org/docs/11/runtime-config-replication.html#GUC-MAX-WAL-SENDERS
 
-# echo "wal_keep_size = 1024" >>/tmp/postgresql.conf #it was  "wal_keep_segments" in earlier version. changed in version 13
+# echo "wal_keep_size = 2560" >>/tmp/postgresql.conf #it was  "wal_keep_segments" in earlier version. changed in version 13
 if [ ! -z "${WAL_RETAIN_PARAM:-}" ] && [ ! -z "${WAL_RETAIN_AMOUNT:-}" ]; then
     echo "${WAL_RETAIN_PARAM}=${WAL_RETAIN_AMOUNT}" >>/tmp/postgresql.conf
 else
-  echo "wal_keep_size = 1024" >>/tmp/postgresql.conf
+  echo "wal_keep_size = 2560" >>/tmp/postgresql.conf
 fi
 if [[ "$WAL_LIMIT_POLICY" == "ReplicationSlot" ]]; then
   CLEAN_HOSTNAME="${HOSTNAME//[^[:alnum:]]/}"

diff --git a/role_scripts/13/standby/warm_stanby.sh b/role_scripts/13/standby/warm_stanby.sh
@@ -20,11 +20,11 @@ echo "wal_level = replica" >>/tmp/postgresql.conf
 echo "shared_buffers = $SHARED_BUFFERS" >>/tmp/postgresql.conf
 echo "max_wal_senders = 90" >>/tmp/postgresql.conf # default is 10.  value must be less than max_connections minus superuser_reserved_connections. ref: https://www.postgresql.org/docs/11/runtime-config-replication.html#GUC-MAX-WAL-SENDERS
 
-# echo "wal_keep_size = 1024" >>/tmp/postgresql.conf #it was  "wal_keep_segments" in earlier version. changed in version 13
+# echo "wal_keep_size = 2560" >>/tmp/postgresql.conf #it was  "wal_keep_segments" in earlier version. changed in version 13
 if [ ! -z "${WAL_RETAIN_PARAM:-}" ] && [ ! -z "${WAL_RETAIN_AMOUNT:-}" ]; then
     echo "${WAL_RETAIN_PARAM}=${WAL_RETAIN_AMOUNT}" >>/tmp/postgresql.conf
 else
-  echo "wal_keep_size = 1024" >>/tmp/postgresql.conf
+  echo "wal_keep_size = 2560" >>/tmp/postgresql.conf
 fi
 if [[ "$WAL_LIMIT_POLICY" == "ReplicationSlot" ]]; then
   CLEAN_HOSTNAME="${HOSTNAME//[^[:alnum:]]/}"

diff --git a/role_scripts/14/primary/start.sh b/role_scripts/14/primary/start.sh
@@ -20,11 +20,11 @@ echo "wal_level = replica" >>/tmp/postgresql.conf
 echo "shared_buffers = $SHARED_BUFFERS" >>/tmp/postgresql.conf
 echo "max_wal_senders = 90" >>/tmp/postgresql.conf # default is 10.  value must be less than max_connections minus superuser_reserved_connections. ref: https://www.postgresql.org/docs/11/runtime-config-replication.html#GUC-MAX-WAL-SENDERS
 
-# echo "wal_keep_size = 1024" >>/tmp/postgresql.conf
+# echo "wal_keep_size = 2560" >>/tmp/postgresql.conf
 if [ ! -z "${WAL_RETAIN_PARAM:-}" ] && [ ! -z "${WAL_RETAIN_AMOUNT:-}" ]; then
     echo "${WAL_RETAIN_PARAM}=${WAL_RETAIN_AMOUNT}" >>/tmp/postgresql.conf
 else
-  echo "wal_keep_size = 1024" >>/tmp/postgresql.conf
+  echo "wal_keep_size = 2560" >>/tmp/postgresql.conf
 fi
 echo "max_replication_slots = 90" >>/tmp/postgresql.conf
 echo "wal_log_hints = on" >>/tmp/postgresql.conf

diff --git a/role_scripts/14/standby/ha_backup_job.sh b/role_scripts/14/standby/ha_backup_job.sh
@@ -72,11 +72,11 @@ echo "wal_level = replica" >>/tmp/postgresql.conf
 echo "shared_buffers = $SHARED_BUFFERS" >>/tmp/postgresql.conf
 echo "max_wal_senders = 90" >>/tmp/postgresql.conf # default is 10.  value must be less than max_connections minus superuser_reserved_connections. ref: https://www.postgresql.org/docs/11/runtime-config-replication.html#GUC-MAX-WAL-SENDERS
 
-# echo "wal_keep_size = 1024" >>/tmp/postgresql.conf #it was  "wal_keep_segments" in earlier version. changed in version 13
+# echo "wal_keep_size = 2560" >>/tmp/postgresql.conf #it was  "wal_keep_segments" in earlier version. changed in version 13
 if [ ! -z "${WAL_RETAIN_PARAM:-}" ] && [ ! -z "${WAL_RETAIN_AMOUNT:-}" ]; then
     echo "${WAL_RETAIN_PARAM}=${WAL_RETAIN_AMOUNT}" >>/tmp/postgresql.conf
 else
-  echo "wal_keep_size = 1024" >>/tmp/postgresql.conf
+  echo "wal_keep_size = 2560" >>/tmp/postgresql.conf
 fi
 if [[ "$WAL_LIMIT_POLICY" == "ReplicationSlot" ]]; then
   CLEAN_HOSTNAME="${HOSTNAME//[^[:alnum:]]/}"

diff --git a/role_scripts/14/standby/remote-replica.sh b/role_scripts/14/standby/remote-replica.sh
@@ -67,7 +67,7 @@ echo "max_wal_senders = 90" >>/tmp/postgresql.conf # default is 10.  value must
 if [ ! -z "${WAL_RETAIN_PARAM:-}" ] && [ ! -z "${WAL_RETAIN_AMOUNT:-}" ]; then
     echo "${WAL_RETAIN_PARAM}=${WAL_RETAIN_AMOUNT}" >>/tmp/postgresql.conf
 else
-  echo "wal_keep_size = 1024" >>/tmp/postgresql.conf
+  echo "wal_keep_size = 2560" >>/tmp/postgresql.conf
 fi
 if [[ "$WAL_LIMIT_POLICY" == "ReplicationSlot" ]]; then
   CLEAN_HOSTNAME="${HOSTNAME//[^[:alnum:]]/}"

diff --git a/role_scripts/14/standby/run.sh b/role_scripts/14/standby/run.sh
@@ -110,11 +110,11 @@ echo "wal_level = replica" >>/tmp/postgresql.conf
 echo "shared_buffers = $SHARED_BUFFERS" >>/tmp/postgresql.conf
 echo "max_wal_senders = 90" >>/tmp/postgresql.conf # default is 10.  value must be less than max_connections minus superuser_reserved_connections. ref: https://www.postgresql.org/docs/11/runtime-config-replication.html#GUC-MAX-WAL-SENDERS
 
-# echo "wal_keep_size = 1024" >>/tmp/postgresql.conf #it was  "wal_keep_segments" in earlier version. changed in version 13
+# echo "wal_keep_size = 2560" >>/tmp/postgresql.conf #it was  "wal_keep_segments" in earlier version. changed in version 13
 if [ ! -z "${WAL_RETAIN_PARAM:-}" ] && [ ! -z "${WAL_RETAIN_AMOUNT:-}" ]; then
     echo "${WAL_RETAIN_PARAM}=${WAL_RETAIN_AMOUNT}" >>/tmp/postgresql.conf
 else
-  echo "wal_keep_size = 1024" >>/tmp/postgresql.conf
+  echo "wal_keep_size = 2560" >>/tmp/postgresql.conf
 fi
 if [[ "$WAL_LIMIT_POLICY" == "ReplicationSlot" ]]; then
   CLEAN_HOSTNAME="${HOSTNAME//[^[:alnum:]]/}"

diff --git a/role_scripts/14/standby/warm_stanby.sh b/role_scripts/14/standby/warm_stanby.sh
@@ -20,11 +20,11 @@ echo "wal_level = replica" >>/tmp/postgresql.conf
 echo "shared_buffers = $SHARED_BUFFERS" >>/tmp/postgresql.conf
 echo "max_wal_senders = 90" >>/tmp/postgresql.conf # default is 10.  value must be less than max_connections minus superuser_reserved_connections. ref: https://www.postgresql.org/docs/11/runtime-config-replication.html#GUC-MAX-WAL-SENDERS
 
-# echo "wal_keep_size = 1024" >>/tmp/postgresql.conf #it was  "wal_keep_segments" in earlier version. changed in version 13
+# echo "wal_keep_size = 2560" >>/tmp/postgresql.conf #it was  "wal_keep_segments" in earlier version. changed in version 13
 if [ ! -z "${WAL_RETAIN_PARAM:-}" ] && [ ! -z "${WAL_RETAIN_AMOUNT:-}" ]; then
     echo "${WAL_RETAIN_PARAM}=${WAL_RETAIN_AMOUNT}" >>/tmp/postgresql.conf
 else
-  echo "wal_keep_size = 1024" >>/tmp/postgresql.conf
+  echo "wal_keep_size = 2560" >>/tmp/postgresql.conf
 fi
 if [[ "$WAL_LIMIT_POLICY" == "ReplicationSlot" ]]; then
   CLEAN_HOSTNAME="${HOSTNAME//[^[:alnum:]]/}"

diff --git a/role_scripts/15/primary/start.sh b/role_scripts/15/primary/start.sh
@@ -20,11 +20,11 @@ echo "wal_level = replica" >>/tmp/postgresql.conf
 echo "shared_buffers = $SHARED_BUFFERS" >>/tmp/postgresql.conf
 echo "max_wal_senders = 90" >>/tmp/postgresql.conf # default is 10.  value must be less than max_connections minus superuser_reserved_connections. ref: https://www.postgresql.org/docs/11/runtime-config-replication.html#GUC-MAX-WAL-SENDERS
 
-# echo "wal_keep_size = 1024" >>/tmp/postgresql.conf
+# echo "wal_keep_size = 2560" >>/tmp/postgresql.conf
 if [ ! -z "${WAL_RETAIN_PARAM:-}" ] && [ ! -z "${WAL_RETAIN_AMOUNT:-}" ]; then
     echo "${WAL_RETAIN_PARAM}=${WAL_RETAIN_AMOUNT}" >>/tmp/postgresql.conf
 else
-  echo "wal_keep_size = 1024" >>/tmp/postgresql.conf
+  echo "wal_keep_size = 2560" >>/tmp/postgresql.conf
 fi
 echo "max_replication_slots = 90" >>/tmp/postgresql.conf
 echo "wal_log_hints = on" >>/tmp/postgresql.conf

diff --git a/role_scripts/15/standby/ha_backup_job.sh b/role_scripts/15/standby/ha_backup_job.sh
@@ -74,11 +74,11 @@ echo "wal_level = replica" >>/tmp/postgresql.conf
 echo "shared_buffers = $SHARED_BUFFERS" >>/tmp/postgresql.conf
 echo "max_wal_senders = 90" >>/tmp/postgresql.conf # default is 10.  value must be less than max_connections minus superuser_reserved_connections. ref: https://www.postgresql.org/docs/11/runtime-config-replication.html#GUC-MAX-WAL-SENDERS
 
-# echo "wal_keep_size = 1024" >>/tmp/postgresql.conf #it was  "wal_keep_segments" in earlier version. changed in version 13
+# echo "wal_keep_size = 2560" >>/tmp/postgresql.conf #it was  "wal_keep_segments" in earlier version. changed in version 13
 if [ ! -z "${WAL_RETAIN_PARAM:-}" ] && [ ! -z "${WAL_RETAIN_AMOUNT:-}" ]; then
     echo "${WAL_RETAIN_PARAM}=${WAL_RETAIN_AMOUNT}" >>/tmp/postgresql.conf
 else
-  echo "wal_keep_size = 1024" >>/tmp/postgresql.conf
+  echo "wal_keep_size = 2560" >>/tmp/postgresql.conf
 fi
 if [[ "$WAL_LIMIT_POLICY" == "ReplicationSlot" ]]; then
   CLEAN_HOSTNAME="${HOSTNAME//[^[:alnum:]]/}"

diff --git a/role_scripts/15/standby/remote-replica.sh b/role_scripts/15/standby/remote-replica.sh
@@ -67,7 +67,7 @@ echo "max_wal_senders = 90" >>/tmp/postgresql.conf # default is 10.  value must
 if [ ! -z "${WAL_RETAIN_PARAM:-}" ] && [ ! -z "${WAL_RETAIN_AMOUNT:-}" ]; then
     echo "${WAL_RETAIN_PARAM}=${WAL_RETAIN_AMOUNT}" >>/tmp/postgresql.conf
 else
-  echo "wal_keep_size = 1024" >>/tmp/postgresql.conf
+  echo "wal_keep_size = 2560" >>/tmp/postgresql.conf
 fi
 if [[ "$WAL_LIMIT_POLICY" == "ReplicationSlot" ]]; then
   CLEAN_HOSTNAME="${HOSTNAME//[^[:alnum:]]/}"

diff --git a/role_scripts/15/standby/run.sh b/role_scripts/15/standby/run.sh
@@ -110,11 +110,11 @@ echo "wal_level = replica" >>/tmp/postgresql.conf
 echo "shared_buffers = $SHARED_BUFFERS" >>/tmp/postgresql.conf
 echo "max_wal_senders = 90" >>/tmp/postgresql.conf # default is 10.  value must be less than max_connections minus superuser_reserved_connections. ref: https://www.postgresql.org/docs/11/runtime-config-replication.html#GUC-MAX-WAL-SENDERS
 
-# echo "wal_keep_size = 1024" >>/tmp/postgresql.conf #it was  "wal_keep_segments" in earlier version. changed in version 13
+# echo "wal_keep_size = 2560" >>/tmp/postgresql.conf #it was  "wal_keep_segments" in earlier version. changed in version 13
 if [ ! -z "${WAL_RETAIN_PARAM:-}" ] && [ ! -z "${WAL_RETAIN_AMOUNT:-}" ]; then
     echo "${WAL_RETAIN_PARAM}=${WAL_RETAIN_AMOUNT}" >>/tmp/postgresql.conf
 else
-  echo "wal_keep_size = 1024" >>/tmp/postgresql.conf
+  echo "wal_keep_size = 2560" >>/tmp/postgresql.conf
 fi
 if [[ "$WAL_LIMIT_POLICY" == "ReplicationSlot" ]]; then
   CLEAN_HOSTNAME="${HOSTNAME//[^[:alnum:]]/}"

diff --git a/role_scripts/15/standby/warm_stanby.sh b/role_scripts/15/standby/warm_stanby.sh
@@ -20,11 +20,11 @@ echo "wal_level = replica" >>/tmp/postgresql.conf
 echo "shared_buffers = $SHARED_BUFFERS" >>/tmp/postgresql.conf
 echo "max_wal_senders = 90" >>/tmp/postgresql.conf # default is 10.  value must be less than max_connections minus superuser_reserved_connections. ref: https://www.postgresql.org/docs/11/runtime-config-replication.html#GUC-MAX-WAL-SENDERS
 
-# echo "wal_keep_size = 1024" >>/tmp/postgresql.conf #it was  "wal_keep_segments" in earlier version. changed in version 13
+# echo "wal_keep_size = 2560" >>/tmp/postgresql.conf #it was  "wal_keep_segments" in earlier version. changed in version 13
 if [ ! -z "${WAL_RETAIN_PARAM:-}" ] && [ ! -z "${WAL_RETAIN_AMOUNT:-}" ]; then
     echo "${WAL_RETAIN_PARAM}=${WAL_RETAIN_AMOUNT}" >>/tmp/postgresql.conf
 else
-  echo "wal_keep_size = 1024" >>/tmp/postgresql.conf
+  echo "wal_keep_size = 2560" >>/tmp/postgresql.conf
 fi
 if [[ "$WAL_LIMIT_POLICY" == "ReplicationSlot" ]]; then
   CLEAN_HOSTNAME="${HOSTNAME//[^[:alnum:]]/}"

diff --git a/role_scripts/16/primary/start.sh b/role_scripts/16/primary/start.sh
@@ -20,11 +20,11 @@ echo "wal_level = replica" >>/tmp/postgresql.conf
 echo "shared_buffers = $SHARED_BUFFERS" >>/tmp/postgresql.conf
 echo "max_wal_senders = 90" >>/tmp/postgresql.conf # default is 10.  value must be less than max_connections minus superuser_reserved_connections. ref: https://www.postgresql.org/docs/11/runtime-config-replication.html#GUC-MAX-WAL-SENDERS
 
-# echo "wal_keep_size = 1024" >>/tmp/postgresql.conf
+# echo "wal_keep_size = 2560" >>/tmp/postgresql.conf
 if [ ! -z "${WAL_RETAIN_PARAM:-}" ] && [ ! -z "${WAL_RETAIN_AMOUNT:-}" ]; then
     echo "${WAL_RETAIN_PARAM}=${WAL_RETAIN_AMOUNT}" >>/tmp/postgresql.conf
 else
-  echo "wal_keep_size = 1024" >>/tmp/postgresql.conf
+  echo "wal_keep_size = 2560" >>/tmp/postgresql.conf
 fi
 
 echo "wal_log_hints = on" >>/tmp/postgresql.conf