Hello, @grumo35 thanks for the quick response!
As we said earlier we didn't have the logs for the time when the error occured, but it happened again and we managed to get the logs and they are as follows:
Note 25.10.2021 at 8.33 am last run --- 2021-10-23 22:33:00.430548000 Z
[2021-10-23T22:33:00,129][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ParNew"}
[2021-10-23T22:33:00,129][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ConcurrentMarkSweep"}
[2021-10-23T22:33:00,432][INFO ][logstash.inputs.jdbc ][main][4543523041e9fa437a13e2badb0b37fd40ddd6daf0b037c957d478599992b93b] (0.001213s) select version from PRODUCT_COMPONENT_VERSION where lower(product) like 'oracle%'
[2021-10-s:33:02,127][DEBUG][org.logstash.execution.PeriodicFlush][main] Pushing flush onto pipeline.
[2021-10-23T22:33:05,132][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ParNew"}
[2021-10-23T22:33:05,132][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ConcurrentMarkSweep"}
[2021-10-23T22:33:07,127][DEBUG][org.logstash.execution.PeriodicFlush][main] Pushing flush onto pipeline.
[2021-10-23T22:33:10,135][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ParNew"}
[2021-10-23T22:33:10,135][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ConcurrentMarkSweep"}
[2021-10-23T22:33:12,127][DEBUG][org.logstash.execution.PeriodicFlush][main] Pushing flush onto pipeline.
[2021-10-23T22:33:14,504][INFO ][logstash.inputs.jdbc ][main][4543523041e9fa437a13e2badb0b37fd40ddd6daf0b037c957d478599992b93b] (14.071635s) SELECT count(*) "COUNT" FROM (select * from [TABLE] WHERE ("[TIMESTAMP]" IS NOT NULL) AND ("[TIMESTAMP]" > TIMESTAMP '2021-10-23 22:32:00.380394 +00:00')) "T1" FETCH NEXT 1 ROWS ONLY
[2021-10-23T22:33:14,504][DEBUG][logstash.inputs.jdbc ][main][4543523041e9fa437a13e2badb0b37fd40ddd6daf0b037c957d478599992b93b] Executing JDBC query {:statement=>"select * from [TABLE] WHERE (\"[TIMESTAMP]\" IS NOT NULL) AND (\"[TIMESTAMP]\" > :sql_last_value)", :parameters=>{:sql_last_value=>2021-10-23 22:32:00 UTC}, :count=>1}
[2021-10-23T22:33:15,137][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ParNew"}
[2021-10-23T22:33:15,137][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ConcurrentMarkSweep"}
[2021-10-23T22:33:17,127][DEBUG][org.logstash.execution.PeriodicFlush][main] Pushing flush onto pipeline.
[2021-10-23T22:33:20,140][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ParNew"}
[2021-10-23T22:33:20,140][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ConcurrentMarkSweep"}
[2021-10-23T22:33:22,127][DEBUG][org.logstash.execution.PeriodicFlush][main] Pushing flush onto pipeline.
[2021-10-23T22:33:25,143][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ParNew"}
[2021-10-23T22:33:25,143][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ConcurrentMarkSweep"}
[2021-10-23T22:33:27,127][DEBUG][org.logstash.execution.PeriodicFlush][main] Pushing flush onto pipeline.
[2021-10-23T22:33:28,849][INFO ][logstash.inputs.jdbc ][main][4543523041e9fa437a13e2badb0b37fd40ddd6daf0b037c957d478599992b93b] (14.344335s) select * from [TABLE] WHERE ("[TIMESTAMP]" IS NOT NULL) AND ("[TIMESTAMP]" > TIMESTAMP '2021-10-23 22:32:00.380394 +00:00')
[2021-10-23T22:33:28,950][DEBUG][logstash.filters.json ][main][ea78aa9d17e89f4752df02bc56b1364d558e4f25b793dc35bc730cdb26fe6bc7] Running json filter {:event=>#<LogStash::Event:0x6c63d838>}
[2021-10-23T22:33:28,950][DEBUG][logstash.filters.json ][main][ea78aa9d17e89f4752df02bc56b1364d558e4f25b793dc35bc730cdb26fe6bc7] Event after json filter {:event=>#<LogStash::Event:0x6c63d838>}
[2021-10-23T22:33:28,950][DEBUG][logstash.filters.mutate ][main][781a094209145cf7fe1e3636912095c1bd19ad7f01e1dd153c727792627a2cd1] filters/LogStash::Filters::Mutate: removing field {:field=>"title_attribute_array"}
[2021-10-23T22:33:28,950][DEBUG][logstash.filters.mutate ][main][781a094209145cf7fe1e3636912095c1bd19ad7f01e1dd153c727792627a2cd1] filters/LogStash::Filters::Mutate: removing field {:field=>"title_attribute"}
[2021-10-23T22:33:28,950][DEBUG][logstash.filters.mutate ][main][781a094209145cf7fe1e3636912095c1bd19ad7f01e1dd153c727792627a2cd1] filters/LogStash::Filters::Mutate: removing field {:field=>"metadata_value"}
[2021-10-23T22:33:28,950][DEBUG][logstash.filters.mutate ][main][781a094209145cf7fe1e3636912095c1bd19ad7f01e1dd153c727792627a2cd1] filters/LogStash::Filters::Mutate: removing field {:field=>"metadata_value_array"}
[2021-10-23T22:33:28,950][DEBUG][logstash.filters.mutate ][main][781a094209145cf7fe1e3636912095c1bd19ad7f01e1dd153c727792627a2cd1] filters/LogStash::Filters::Mutate: removing field {:field=>"metadata_value_array_new"}
[2021-10-23T22:33:28,950][DEBUG][logstash.util.decorators ][main][e668bebbd841e4d6fb2ede5fc59336b35fb64279b42fc6acbd225e8d17162921] filters/LogStash::Filters::Mutate: adding value to field {"field"=>"i_autocomplete", "value"=>["%{short_title}"]}
[2021-10-23T22:33:28,950][DEBUG][logstash.util.decorators ][main][4fbd7d4a0c1af8d282ea4baab6a71a3e4718182d1a48b187c6a82fee15e02b04] filters/LogStash::Filters::Mutate: adding value to field {"field"=>"title_complement_spelling_correction", "value"=>["%{title_complement}"]}
[2021-10-23T22:33:28,951][DEBUG][org.apache.http.client.protocol.RequestAuthCache][main][4d240c3e583460b56a6c34de864823c32285dfb39611226f8de2edd061136e19] Re-using cached 'basic' auth scheme for [PROTOCOL:URL:PORT]
[2021-10-23T22:33:28,951][DEBUG][org.apache.http.impl.conn.PoolingHttpClientConnectionManager][main][4d240c3e583460b56a6c34de864823c32285dfb39611226f8de2edd061136e19] Connection request: [route: {s}->[PROTOCOL:URL:PORT]][total kept alive: 1; route allocated: 1 of 100; total allocated: 1 of 1000]
[2021-10-23T22:33:28,951][DEBUG][org.apache.http.impl.conn.CPool][main][4d240c3e583460b56a6c34de864823c32285dfb39611226f8de2edd061136e19] Connection [id:320486][route:{s}->[PROTOCOL:URL:PORT]][state:null] expired @ Sat Oct 23 22:32:32 UTC 2021
[2021-10-23T22:33:28,951][DEBUG][org.apache.http.impl.conn.DefaultManagedHttpClientConnection][main][4d240c3e583460b56a6c34de864823c32285dfb39611226f8de2edd061136e19] http-outgoing-320486: Close connection
[2021-10-23T22:33:28,951][DEBUG][org.apache.http.impl.conn.PoolingHttpClientConnectionManager][main][4d240c3e583460b56a6c34de864823c32285dfb39611226f8de2edd061136e19] Connection leased: [id: 320487][route: {s}->[PROTOCOL:URL:PORT]][total kept alive: 0; route allocated: 1 of 100; total allocated: 1 of 1000]
[2021-10-23T22:33:28,951][DEBUG][org.apache.http.impl.execchain.MainClientExec][main][4d240c3e583460b56a6c34de864823c32285dfb39611226f8de2edd061136e19] Opening connection {s}->[PROTOCOL:URL:PORT]
[2021-10-23T22:33:28,955][DEBUG][org.apache.http.impl.conn.DefaultHttpClientConnectionOperator][main][4d240c3e583460b56a6c34de864823c32285dfb39611226f8de2edd061136e19] Connecting to [URL]/[IP]:443
[2021-10-23T22:33:28,955][DEBUG][org.apache.http.conn.ssl.SSLConnectionSocketFactory][main][4d240c3e583460b56a6c34de864823c32285dfb39611226f8de2edd061136e19] Connecting socket to [URL]/[IP]:443 with timeout 10000
[2021-10-23T22:33:28,955][DEBUG][org.apache.http.conn.ssl.SSLConnectionSocketFactory][main][4d240c3e583460b56a6c34de864823c32285dfb39611226f8de2edd061136e19] Enabled protocols: [TLSv1.3, TLSv1.2, TLSv1.1, TLSv1]
[2021-10-23T22:33:28,955][DEBUG][org.apache.http.conn.ssl.SSLConnectionSocketFactory][main][4d240c3e583460b56a6c34de864823c32285dfb39611226f8de2edd061136e19] Enabled cipher suites:[TLS_AES_128_GCM_SHA256, TLS_AES_256_GCM_SHA384, TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384, TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384, TLS_RSA_WITH_AES_256_GCM_SHA384, TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384, TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384, TLS_DHE_RSA_WITH_AES_256_GCM_SHA384, TLS_DHE_DSS_WITH_AES_256_GCM_SHA384, TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, TLS_RSA_WITH_AES_128_GCM_SHA256, TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256, TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256, TLS_DHE_RSA_WITH_AES_128_GCM_SHA256, TLS_DHE_DSS_WITH_AES_128_GCM_SHA256, TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384, TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384, TLS_RSA_WITH_AES_256_CBC_SHA256, TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384, TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384, TLS_DHE_RSA_WITH_AES_256_CBC_SHA256, TLS_DHE_DSS_WITH_AES_256_CBC_SHA256, TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA, TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA, TLS_RSA_WITH_AES_256_CBC_SHA, TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA, TLS_ECDH_RSA_WITH_AES_256_CBC_SHA, TLS_DHE_RSA_WITH_AES_256_CBC_SHA, TLS_DHE_DSS_WITH_AES_256_CBC_SHA, TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256, TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256, TLS_RSA_WITH_AES_128_CBC_SHA256, TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256, TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256, TLS_DHE_RSA_WITH_AES_128_CBC_SHA256, TLS_DHE_DSS_WITH_AES_128_CBC_SHA256, TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA, TLS_RSA_WITH_AES_128_CBC_SHA, TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA, TLS_ECDH_RSA_WITH_AES_128_CBC_SHA, TLS_DHE_RSA_WITH_AES_128_CBC_SHA, TLS_DHE_DSS_WITH_AES_128_CBC_SHA, TLS_EMPTY_RENEGOTIATION_INFO_SCSV]